./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC --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 766a879002f02395031e659ac25b856858b20e6e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 00:31:40,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:40,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:40,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:40,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:40,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:40,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:40,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:40,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:40,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:40,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:40,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:40,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:40,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:40,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:40,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:40,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:40,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:40,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:40,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:40,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:40,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:40,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:40,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:40,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:40,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:40,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:40,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:40,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:40,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:40,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:40,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:40,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:40,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:40,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:40,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:40,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:40,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:40,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:40,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:40,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:40,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:31:40,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:40,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:40,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:40,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:40,610 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:40,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:40,611 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:40,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:40,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:40,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:40,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:31:40,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:31:40,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:31:40,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:40,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:40,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:40,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:31:40,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:40,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:40,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:31:40,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:31:40,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:40,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:31:40,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:31:40,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:40,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:31:40,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:31:40,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:40,624 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_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 766a879002f02395031e659ac25b856858b20e6e [2021-10-11 00:31:40,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:40,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:40,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:40,945 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:40,946 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:40,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-11 00:31:41,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/data/5f9ac29d7/2824bc0df76243eba5e3d5488c27df93/FLAG4d0dbebcb [2021-10-11 00:31:41,597 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:41,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-11 00:31:41,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/data/5f9ac29d7/2824bc0df76243eba5e3d5488c27df93/FLAG4d0dbebcb [2021-10-11 00:31:41,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/data/5f9ac29d7/2824bc0df76243eba5e3d5488c27df93 [2021-10-11 00:31:41,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:41,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:41,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:41,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:41,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:41,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d660ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41, skipping insertion in model container [2021-10-11 00:31:41,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:41,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:42,412 WARN L226 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_ae85990a-0c17-4769-95e2-ca53c04c03d2/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18465,18478] [2021-10-11 00:31:42,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:42,435 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:42,528 WARN L226 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_ae85990a-0c17-4769-95e2-ca53c04c03d2/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18465,18478] [2021-10-11 00:31:42,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:42,566 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:42,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42 WrapperNode [2021-10-11 00:31:42,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:42,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:42,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:42,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:42,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:42,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:42,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:42,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:42,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... [2021-10-11 00:31:42,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:42,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:42,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:42,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:42,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:31:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:43,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:43,960 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-10-11 00:31:43,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:43 BoogieIcfgContainer [2021-10-11 00:31:43,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:43,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:31:43,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:31:43,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:31:43,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:31:41" (1/3) ... [2021-10-11 00:31:43,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5853af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:43, skipping insertion in model container [2021-10-11 00:31:43,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:42" (2/3) ... [2021-10-11 00:31:43,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5853af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:43, skipping insertion in model container [2021-10-11 00:31:43,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:43" (3/3) ... [2021-10-11 00:31:43,974 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2021-10-11 00:31:43,994 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:31:43,997 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:31:44,005 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:31:44,030 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:31:44,031 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:31:44,031 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:31:44,031 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:44,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:44,031 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:31:44,031 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:44,032 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:31:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2021-10-11 00:31:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:31:44,055 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:44,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:44,057 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:44,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:44,062 INFO L82 PathProgramCache]: Analyzing trace with hash 335687254, now seen corresponding path program 1 times [2021-10-11 00:31:44,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:44,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266964002] [2021-10-11 00:31:44,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:44,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266964002] [2021-10-11 00:31:44,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:44,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:44,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350603509] [2021-10-11 00:31:44,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:31:44,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:44,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:31:44,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:31:44,403 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2021-10-11 00:31:44,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:44,469 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2021-10-11 00:31:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:31:44,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:31:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:44,495 INFO L225 Difference]: With dead ends: 244 [2021-10-11 00:31:44,495 INFO L226 Difference]: Without dead ends: 121 [2021-10-11 00:31:44,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:31:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-11 00:31:44,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-10-11 00:31:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2021-10-11 00:31:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2021-10-11 00:31:44,550 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2021-10-11 00:31:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:44,550 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2021-10-11 00:31:44,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:31:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2021-10-11 00:31:44,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:31:44,552 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:44,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:44,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:31:44,553 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:44,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:44,554 INFO L82 PathProgramCache]: Analyzing trace with hash -575343499, now seen corresponding path program 1 times [2021-10-11 00:31:44,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:44,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337971265] [2021-10-11 00:31:44,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:44,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337971265] [2021-10-11 00:31:44,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:44,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:31:44,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569406833] [2021-10-11 00:31:44,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:44,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:44,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:44,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:44,683 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2021-10-11 00:31:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:44,695 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2021-10-11 00:31:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:44,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:31:44,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:44,697 INFO L225 Difference]: With dead ends: 121 [2021-10-11 00:31:44,697 INFO L226 Difference]: Without dead ends: 51 [2021-10-11 00:31:44,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:44,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-11 00:31:44,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-11 00:31:44,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-10-11 00:31:44,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-10-11 00:31:44,705 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-10-11 00:31:44,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:44,705 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-10-11 00:31:44,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:44,706 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-10-11 00:31:44,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:31:44,707 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:44,707 INFO L422 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] [2021-10-11 00:31:44,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:31:44,707 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:44,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2021-10-11 00:31:44,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:44,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427384792] [2021-10-11 00:31:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:44,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427384792] [2021-10-11 00:31:44,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:44,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:31:44,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420512358] [2021-10-11 00:31:44,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:31:44,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:44,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:31:44,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:31:44,794 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 6 states. [2021-10-11 00:31:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:44,941 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2021-10-11 00:31:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:31:44,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2021-10-11 00:31:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:44,944 INFO L225 Difference]: With dead ends: 166 [2021-10-11 00:31:44,944 INFO L226 Difference]: Without dead ends: 121 [2021-10-11 00:31:44,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:31:44,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-11 00:31:44,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2021-10-11 00:31:44,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-11 00:31:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2021-10-11 00:31:44,960 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2021-10-11 00:31:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:44,961 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2021-10-11 00:31:44,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:31:44,961 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2021-10-11 00:31:44,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:31:44,962 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:44,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:44,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:31:44,963 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:44,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:44,964 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2021-10-11 00:31:44,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:44,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612588124] [2021-10-11 00:31:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:45,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612588124] [2021-10-11 00:31:45,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:45,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:45,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655443075] [2021-10-11 00:31:45,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:45,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:45,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:45,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:45,033 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2021-10-11 00:31:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:45,070 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2021-10-11 00:31:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:45,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 00:31:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:45,072 INFO L225 Difference]: With dead ends: 161 [2021-10-11 00:31:45,072 INFO L226 Difference]: Without dead ends: 95 [2021-10-11 00:31:45,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-11 00:31:45,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-10-11 00:31:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2021-10-11 00:31:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2021-10-11 00:31:45,086 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2021-10-11 00:31:45,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:45,086 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2021-10-11 00:31:45,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2021-10-11 00:31:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:31:45,088 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:45,088 INFO L422 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] [2021-10-11 00:31:45,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:31:45,089 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:45,089 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2021-10-11 00:31:45,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:45,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410180523] [2021-10-11 00:31:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:45,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:45,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410180523] [2021-10-11 00:31:45,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:45,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:31:45,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070230503] [2021-10-11 00:31:45,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:31:45,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:45,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:45,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:45,210 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 5 states. [2021-10-11 00:31:45,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:45,405 INFO L93 Difference]: Finished difference Result 482 states and 707 transitions. [2021-10-11 00:31:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:31:45,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 00:31:45,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:45,413 INFO L225 Difference]: With dead ends: 482 [2021-10-11 00:31:45,413 INFO L226 Difference]: Without dead ends: 395 [2021-10-11 00:31:45,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:31:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-10-11 00:31:45,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 158. [2021-10-11 00:31:45,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2021-10-11 00:31:45,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 221 transitions. [2021-10-11 00:31:45,445 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 221 transitions. Word has length 27 [2021-10-11 00:31:45,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:45,445 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 221 transitions. [2021-10-11 00:31:45,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:31:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 221 transitions. [2021-10-11 00:31:45,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:31:45,447 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:45,447 INFO L422 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] [2021-10-11 00:31:45,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:31:45,447 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:45,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2021-10-11 00:31:45,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:45,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015047200] [2021-10-11 00:31:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:45,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:45,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:45,687 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:45,688 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:31:45,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:31:45,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:31:45 BoogieIcfgContainer [2021-10-11 00:31:45,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:31:45,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:31:45,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:31:45,829 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:31:45,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:43" (3/4) ... [2021-10-11 00:31:45,832 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:31:45,916 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae85990a-0c17-4769-95e2-ca53c04c03d2/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:31:45,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:31:45,918 INFO L168 Benchmark]: Toolchain (without parser) took 4025.61 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 78.2 MB in the beginning and 90.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:45,919 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 83.9 MB. Free memory was 59.1 MB in the beginning and 59.0 MB in the end (delta: 41.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:45,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.54 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 56.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:45,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.72 ms. Allocated memory is still 100.7 MB. Free memory was 56.4 MB in the beginning and 52.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:45,920 INFO L168 Benchmark]: Boogie Preprocessor took 52.36 ms. Allocated memory is still 100.7 MB. Free memory was 52.7 MB in the beginning and 50.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:45,920 INFO L168 Benchmark]: RCFGBuilder took 1260.39 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 49.8 MB in the beginning and 104.6 MB in the end (delta: -54.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:45,921 INFO L168 Benchmark]: TraceAbstraction took 1861.86 ms. Allocated memory is still 136.3 MB. Free memory was 104.6 MB in the beginning and 101.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 63.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:45,921 INFO L168 Benchmark]: Witness Printer took 87.76 ms. Allocated memory is still 136.3 MB. Free memory was 101.5 MB in the beginning and 90.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:45,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 83.9 MB. Free memory was 59.1 MB in the beginning and 59.0 MB in the end (delta: 41.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 672.54 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 56.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.72 ms. Allocated memory is still 100.7 MB. Free memory was 56.4 MB in the beginning and 52.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.36 ms. Allocated memory is still 100.7 MB. Free memory was 52.7 MB in the beginning and 50.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1260.39 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 49.8 MB in the beginning and 104.6 MB in the end (delta: -54.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1861.86 ms. Allocated memory is still 136.3 MB. Free memory was 104.6 MB in the beginning and 101.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 63.9 MB. Max. memory is 16.1 GB. * Witness Printer took 87.76 ms. Allocated memory is still 136.3 MB. Free memory was 101.5 MB in the beginning and 90.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 979]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L227] int pumpRunning = 0; [L228] int systemActive = 1; [L475] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] int retValue_acc ; [L552] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] tmp = valid_product() [L560] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] int splverifierCounter ; [L158] int tmp ; [L159] int tmp___0 ; [L160] int tmp___1 ; [L161] int tmp___2 ; [L164] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L168] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] tmp = __VERIFIER_nondet_int() [L176] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp___0 = __VERIFIER_nondet_int() [L186] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L194] tmp___2 = __VERIFIER_nondet_int() [L196] COND FALSE !(\read(tmp___2)) [L200] tmp___1 = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L428] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L435] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L235] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L242] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L442] int tmp ; [L443] int tmp___0 ; [L444] int tmp___1 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L448] tmp = isMethaneLevelCritical() [L450] COND FALSE !(\read(tmp)) [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L454] tmp___0 = getWaterLevel() [L456] COND TRUE tmp___0 == 2 [L342] int retValue_acc ; [L345] retValue_acc = pumpRunning [L346] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L458] tmp___1 = isPumpRunning() [L460] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L979] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 655 SDslu, 669 SDs, 0 SdLazy, 81 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 288 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...