./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.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_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/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_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/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_f8c94537-c4b7-4774-8f3a-214693191785/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 5f050ff3359f4c5814c7559cf768b732b843fd60 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:22:02,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:22:02,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:22:02,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:22:02,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:22:02,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:22:02,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:22:02,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:22:02,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:22:02,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:22:02,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:22:02,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:22:02,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:22:02,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:22:02,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:22:02,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:22:02,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:22:02,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:22:02,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:22:02,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:22:02,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:22:02,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:22:02,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:22:02,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:22:02,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:22:02,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:22:02,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:22:02,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:22:02,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:22:02,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:22:02,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:22:02,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:22:02,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:22:02,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:22:02,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:22:02,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:22:02,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:22:02,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:22:02,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:22:02,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:22:02,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:22:02,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:22:02,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:22:02,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:22:02,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:22:02,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:22:02,693 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:22:02,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:22:02,694 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:22:02,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:22:02,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:22:02,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:22:02,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:22:02,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:22:02,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:22:02,697 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:22:02,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:22:02,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:22:02,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:22:02,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:22:02,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:22:02,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:22:02,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:22:02,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:22:02,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:22:02,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:22:02,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:22:02,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:22:02,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:22:02,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:22:02,702 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_f8c94537-c4b7-4774-8f3a-214693191785/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f050ff3359f4c5814c7559cf768b732b843fd60 [2021-10-11 00:22:02,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:22:02,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:22:03,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:22:03,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:22:03,003 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:22:03,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-10-11 00:22:03,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/data/307d49c09/df59419b8edc4aa6afc8f329235a33c6/FLAG77554c6f0 [2021-10-11 00:22:03,785 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:22:03,786 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-10-11 00:22:03,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/data/307d49c09/df59419b8edc4aa6afc8f329235a33c6/FLAG77554c6f0 [2021-10-11 00:22:04,066 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/data/307d49c09/df59419b8edc4aa6afc8f329235a33c6 [2021-10-11 00:22:04,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:22:04,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:22:04,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:04,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:22:04,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:22:04,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625bf620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04, skipping insertion in model container [2021-10-11 00:22:04,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:22:04,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:22:04,342 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_f8c94537-c4b7-4774-8f3a-214693191785/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1281,1294] [2021-10-11 00:22:04,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:04,565 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:22:04,590 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_f8c94537-c4b7-4774-8f3a-214693191785/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1281,1294] [2021-10-11 00:22:04,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:04,761 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:22:04,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04 WrapperNode [2021-10-11 00:22:04,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:04,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:04,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:22:04,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:22:04,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:04,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:22:04,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:22:04,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:22:04,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... [2021-10-11 00:22:04,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:22:04,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:22:04,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:22:04,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:22:04,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/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 00:22:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:22:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:22:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:22:05,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:22:06,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:22:06,360 INFO L299 CfgBuilder]: Removed 204 assume(true) statements. [2021-10-11 00:22:06,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:06 BoogieIcfgContainer [2021-10-11 00:22:06,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:22:06,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:22:06,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:22:06,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:22:06,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:22:04" (1/3) ... [2021-10-11 00:22:06,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78608410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:06, skipping insertion in model container [2021-10-11 00:22:06,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:04" (2/3) ... [2021-10-11 00:22:06,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78608410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:06, skipping insertion in model container [2021-10-11 00:22:06,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:06" (3/3) ... [2021-10-11 00:22:06,377 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2021-10-11 00:22:06,392 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:22:06,396 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:22:06,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:22:06,437 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:22:06,437 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:22:06,437 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:22:06,438 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:22:06,438 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:22:06,438 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:22:06,438 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:22:06,438 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:22:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2021-10-11 00:22:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:22:06,467 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:06,467 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 00:22:06,468 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:06,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:06,475 INFO L82 PathProgramCache]: Analyzing trace with hash -839049995, now seen corresponding path program 1 times [2021-10-11 00:22:06,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:06,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195208371] [2021-10-11 00:22:06,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:06,840 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 00:22:06,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195208371] [2021-10-11 00:22:06,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:06,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:22:06,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943985326] [2021-10-11 00:22:06,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:22:06,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:06,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:22:06,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:22:06,870 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2021-10-11 00:22:06,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:06,908 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2021-10-11 00:22:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:22:06,909 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:22:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:06,924 INFO L225 Difference]: With dead ends: 268 [2021-10-11 00:22:06,924 INFO L226 Difference]: Without dead ends: 133 [2021-10-11 00:22:06,928 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 00:22:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-11 00:22:06,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-10-11 00:22:06,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-10-11 00:22:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2021-10-11 00:22:06,998 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2021-10-11 00:22:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:06,999 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2021-10-11 00:22:06,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:22:06,999 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2021-10-11 00:22:07,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:22:07,006 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:07,006 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 00:22:07,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:22:07,007 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:07,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:07,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1750080748, now seen corresponding path program 1 times [2021-10-11 00:22:07,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:07,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562538925] [2021-10-11 00:22:07,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:07,147 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 00:22:07,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562538925] [2021-10-11 00:22:07,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:07,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:22:07,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68495367] [2021-10-11 00:22:07,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:22:07,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:07,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:22:07,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:22:07,151 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2021-10-11 00:22:07,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:07,167 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2021-10-11 00:22:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:22:07,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:22:07,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:07,169 INFO L225 Difference]: With dead ends: 133 [2021-10-11 00:22:07,170 INFO L226 Difference]: Without dead ends: 55 [2021-10-11 00:22:07,171 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 00:22:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-11 00:22:07,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-11 00:22:07,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-11 00:22:07,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2021-10-11 00:22:07,178 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2021-10-11 00:22:07,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:07,179 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2021-10-11 00:22:07,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:22:07,179 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2021-10-11 00:22:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:22:07,180 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:07,181 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 00:22:07,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:22:07,185 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:07,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:07,186 INFO L82 PathProgramCache]: Analyzing trace with hash -980873092, now seen corresponding path program 1 times [2021-10-11 00:22:07,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:07,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419354660] [2021-10-11 00:22:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:07,319 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 00:22:07,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419354660] [2021-10-11 00:22:07,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:07,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:22:07,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326867788] [2021-10-11 00:22:07,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:22:07,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:07,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:22:07,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:22:07,322 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 5 states. [2021-10-11 00:22:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:07,409 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2021-10-11 00:22:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:22:07,410 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2021-10-11 00:22:07,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:07,412 INFO L225 Difference]: With dead ends: 129 [2021-10-11 00:22:07,412 INFO L226 Difference]: Without dead ends: 80 [2021-10-11 00:22:07,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 00:22:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-11 00:22:07,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2021-10-11 00:22:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-10-11 00:22:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2021-10-11 00:22:07,426 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2021-10-11 00:22:07,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:07,426 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2021-10-11 00:22:07,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:22:07,426 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2021-10-11 00:22:07,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:22:07,428 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:07,428 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 00:22:07,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:22:07,429 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:07,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1838136026, now seen corresponding path program 1 times [2021-10-11 00:22:07,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:07,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972733306] [2021-10-11 00:22:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:07,485 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 00:22:07,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972733306] [2021-10-11 00:22:07,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:07,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:22:07,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497199140] [2021-10-11 00:22:07,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:22:07,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:07,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:22:07,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:22:07,488 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2021-10-11 00:22:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:07,534 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2021-10-11 00:22:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:22:07,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 00:22:07,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:07,536 INFO L225 Difference]: With dead ends: 169 [2021-10-11 00:22:07,536 INFO L226 Difference]: Without dead ends: 99 [2021-10-11 00:22:07,537 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 00:22:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-11 00:22:07,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-11 00:22:07,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-10-11 00:22:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2021-10-11 00:22:07,553 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2021-10-11 00:22:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:07,553 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2021-10-11 00:22:07,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:22:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2021-10-11 00:22:07,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:22:07,555 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:07,555 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 00:22:07,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:22:07,555 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:07,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:07,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1544213679, now seen corresponding path program 1 times [2021-10-11 00:22:07,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:07,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252602012] [2021-10-11 00:22:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:07,674 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 00:22:07,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252602012] [2021-10-11 00:22:07,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:07,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:22:07,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922988096] [2021-10-11 00:22:07,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:22:07,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:07,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:22:07,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:22:07,679 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand 5 states. [2021-10-11 00:22:07,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:07,875 INFO L93 Difference]: Finished difference Result 507 states and 739 transitions. [2021-10-11 00:22:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:22:07,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 00:22:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:07,881 INFO L225 Difference]: With dead ends: 507 [2021-10-11 00:22:07,882 INFO L226 Difference]: Without dead ends: 416 [2021-10-11 00:22:07,883 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 00:22:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-10-11 00:22:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 165. [2021-10-11 00:22:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2021-10-11 00:22:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 230 transitions. [2021-10-11 00:22:07,936 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 230 transitions. Word has length 27 [2021-10-11 00:22:07,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:07,937 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 230 transitions. [2021-10-11 00:22:07,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:22:07,937 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 230 transitions. [2021-10-11 00:22:07,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:22:07,942 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:07,942 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 00:22:07,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:22:07,943 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:07,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:07,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1050489875, now seen corresponding path program 1 times [2021-10-11 00:22:07,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:07,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309289496] [2021-10-11 00:22:07,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:08,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:08,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:08,205 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:08,205 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:22:08,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:22:08,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:22:08 BoogieIcfgContainer [2021-10-11 00:22:08,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:22:08,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:22:08,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:22:08,313 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:22:08,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:06" (3/4) ... [2021-10-11 00:22:08,316 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:22:08,406 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c94537-c4b7-4774-8f3a-214693191785/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:22:08,406 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:22:08,408 INFO L168 Benchmark]: Toolchain (without parser) took 4337.12 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 76.3 MB in the beginning and 80.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:08,411 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 107.0 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:08,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.70 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 76.2 MB in the beginning and 94.0 MB in the end (delta: -17.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:08,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.14 ms. Allocated memory is still 130.0 MB. Free memory was 94.0 MB in the beginning and 89.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:08,413 INFO L168 Benchmark]: Boogie Preprocessor took 61.84 ms. Allocated memory is still 130.0 MB. Free memory was 89.8 MB in the beginning and 87.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:08,414 INFO L168 Benchmark]: RCFGBuilder took 1406.80 ms. Allocated memory is still 130.0 MB. Free memory was 87.0 MB in the beginning and 96.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:08,415 INFO L168 Benchmark]: TraceAbstraction took 1944.08 ms. Allocated memory was 130.0 MB in the beginning and 159.4 MB in the end (delta: 29.4 MB). Free memory was 95.5 MB in the beginning and 92.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:08,416 INFO L168 Benchmark]: Witness Printer took 93.10 ms. Allocated memory is still 159.4 MB. Free memory was 92.5 MB in the beginning and 80.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:08,421 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 107.0 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 690.70 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 76.2 MB in the beginning and 94.0 MB in the end (delta: -17.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.14 ms. Allocated memory is still 130.0 MB. Free memory was 94.0 MB in the beginning and 89.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.84 ms. Allocated memory is still 130.0 MB. Free memory was 89.8 MB in the beginning and 87.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1406.80 ms. Allocated memory is still 130.0 MB. Free memory was 87.0 MB in the beginning and 96.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1944.08 ms. Allocated memory was 130.0 MB in the beginning and 159.4 MB in the end (delta: 29.4 MB). Free memory was 95.5 MB in the beginning and 92.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. * Witness Printer took 93.10 ms. Allocated memory is still 159.4 MB. Free memory was 92.5 MB in the beginning and 80.9 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: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L131] int waterLevel = 1; [L132] int methaneLevelCritical = 0; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L449] int cleanupTimeShifts = 4; [L784] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int retValue_acc ; [L524] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] tmp = valid_product() [L532] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L547] int splverifierCounter ; [L548] int tmp ; [L549] int tmp___0 ; [L550] int tmp___1 ; [L551] int tmp___2 ; [L554] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L564] tmp = __VERIFIER_nondet_int() [L566] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L149] COND TRUE waterLevel < 2 [L150] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] tmp___0 = __VERIFIER_nondet_int() [L576] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L584] tmp___2 = __VERIFIER_nondet_int() [L586] COND FALSE !(\read(tmp___2)) [L592] tmp___1 = __VERIFIER_nondet_int() [L594] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L436] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L238] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L245] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L170] int retValue_acc ; [L173] retValue_acc = methaneLevelCritical [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L202] int retValue_acc ; [L205] retValue_acc = waterLevel [L206] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L362] int retValue_acc ; [L365] retValue_acc = pumpRunning [L366] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L46] 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, 137 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 557 SDtfs, 732 SDslu, 397 SDs, 0 SdLazy, 65 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 257 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 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...