./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.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_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/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_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/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_d83dd4d7-0ec2-49a2-be85-1827ceba2384/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 ce5436eb539a2a8a335e304ce49accfb71554984 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:32:54,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:32:54,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:32:54,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:32:54,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:32:54,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:32:54,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:32:54,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:32:54,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:32:54,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:32:54,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:32:54,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:32:54,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:32:54,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:32:54,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:32:54,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:32:54,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:32:54,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:32:54,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:32:54,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:32:54,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:32:54,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:32:54,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:32:54,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:32:54,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:32:54,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:32:54,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:32:54,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:32:54,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:32:54,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:32:54,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:32:54,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:32:54,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:32:54,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:32:54,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:32:54,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:32:54,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:32:54,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:32:54,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:32:54,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:32:54,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:32:54,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:32:54,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:32:54,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:32:54,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:32:54,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:32:54,738 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:32:54,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:32:54,738 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:32:54,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:32:54,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:32:54,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:32:54,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:32:54,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:32:54,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:32:54,747 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:32:54,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:32:54,747 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:32:54,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:32:54,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:32:54,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:32:54,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:32:54,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:32:54,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:32:54,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:32:54,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:32:54,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:32:54,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:32:54,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:32:54,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:32:54,750 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_d83dd4d7-0ec2-49a2-be85-1827ceba2384/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce5436eb539a2a8a335e304ce49accfb71554984 [2021-10-11 00:32:55,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:32:55,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:32:55,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:32:55,057 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:32:55,058 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:32:55,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2021-10-11 00:32:55,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/data/733497bce/cd028ae26fcd4c84933b7fdb023b64e7/FLAG7001cdadb [2021-10-11 00:32:55,738 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:32:55,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2021-10-11 00:32:55,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/data/733497bce/cd028ae26fcd4c84933b7fdb023b64e7/FLAG7001cdadb [2021-10-11 00:32:55,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/data/733497bce/cd028ae26fcd4c84933b7fdb023b64e7 [2021-10-11 00:32:56,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:32:56,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:32:56,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:56,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:32:56,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:32:56,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:55" (1/1) ... [2021-10-11 00:32:56,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28171be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56, skipping insertion in model container [2021-10-11 00:32:56,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:55" (1/1) ... [2021-10-11 00:32:56,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:32:56,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:32:56,320 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_d83dd4d7-0ec2-49a2-be85-1827ceba2384/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1281,1294] [2021-10-11 00:32:56,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:56,477 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:32:56,496 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_d83dd4d7-0ec2-49a2-be85-1827ceba2384/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1281,1294] [2021-10-11 00:32:56,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:56,615 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:32:56,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56 WrapperNode [2021-10-11 00:32:56,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:56,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:56,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:32:56,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:32:56,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:56,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:32:56,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:32:56,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:32:56,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:32:56,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:32:56,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:32:56,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:32:56,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/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 00:32:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:32:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:32:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:32:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:32:58,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:32:58,083 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-11 00:32:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:58 BoogieIcfgContainer [2021-10-11 00:32:58,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:32:58,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:32:58,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:32:58,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:32:58,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:32:55" (1/3) ... [2021-10-11 00:32:58,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8d2a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:32:58, skipping insertion in model container [2021-10-11 00:32:58,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (2/3) ... [2021-10-11 00:32:58,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8d2a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:32:58, skipping insertion in model container [2021-10-11 00:32:58,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:58" (3/3) ... [2021-10-11 00:32:58,104 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2021-10-11 00:32:58,129 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:32:58,133 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:32:58,142 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:32:58,163 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:32:58,163 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:32:58,163 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:32:58,163 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:32:58,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:32:58,163 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:32:58,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:32:58,164 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:32:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2021-10-11 00:32:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:32:58,185 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:58,186 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 00:32:58,186 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:58,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1047706522, now seen corresponding path program 1 times [2021-10-11 00:32:58,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:58,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194161874] [2021-10-11 00:32:58,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:58,541 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 00:32:58,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194161874] [2021-10-11 00:32:58,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:58,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:32:58,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584409262] [2021-10-11 00:32:58,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:32:58,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:58,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:32:58,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:32:58,565 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2021-10-11 00:32:58,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:58,596 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2021-10-11 00:32:58,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:32:58,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:32:58,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:58,608 INFO L225 Difference]: With dead ends: 160 [2021-10-11 00:32:58,609 INFO L226 Difference]: Without dead ends: 79 [2021-10-11 00:32:58,612 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 00:32:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-11 00:32:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-11 00:32:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-10-11 00:32:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2021-10-11 00:32:58,659 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2021-10-11 00:32:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:58,660 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2021-10-11 00:32:58,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:32:58,660 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2021-10-11 00:32:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:32:58,661 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:58,662 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 00:32:58,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:32:58,662 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:58,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:58,663 INFO L82 PathProgramCache]: Analyzing trace with hash 136675769, now seen corresponding path program 1 times [2021-10-11 00:32:58,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:58,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571181538] [2021-10-11 00:32:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:58,747 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 00:32:58,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571181538] [2021-10-11 00:32:58,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:58,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:32:58,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621122621] [2021-10-11 00:32:58,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:32:58,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:58,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:32:58,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:58,751 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2021-10-11 00:32:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:58,761 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2021-10-11 00:32:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:32:58,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:32:58,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:58,763 INFO L225 Difference]: With dead ends: 79 [2021-10-11 00:32:58,763 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 00:32:58,764 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 00:32:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 00:32:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 00:32:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 00:32:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-10-11 00:32:58,770 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2021-10-11 00:32:58,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:58,770 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-10-11 00:32:58,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:32:58,771 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-10-11 00:32:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:32:58,772 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:58,772 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 00:32:58,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:32:58,773 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:58,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1444562447, now seen corresponding path program 1 times [2021-10-11 00:32:58,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:58,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625151241] [2021-10-11 00:32:58,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:58,873 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 00:32:58,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625151241] [2021-10-11 00:32:58,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:58,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:32:58,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010403811] [2021-10-11 00:32:58,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:32:58,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:58,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:32:58,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:58,884 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2021-10-11 00:32:58,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:58,903 INFO L93 Difference]: Finished difference Result 99 states and 144 transitions. [2021-10-11 00:32:58,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:32:58,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:32:58,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:58,906 INFO L225 Difference]: With dead ends: 99 [2021-10-11 00:32:58,906 INFO L226 Difference]: Without dead ends: 68 [2021-10-11 00:32:58,907 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 00:32:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-11 00:32:58,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2021-10-11 00:32:58,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-10-11 00:32:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 93 transitions. [2021-10-11 00:32:58,921 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 93 transitions. Word has length 24 [2021-10-11 00:32:58,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:58,921 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 93 transitions. [2021-10-11 00:32:58,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:32:58,921 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2021-10-11 00:32:58,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:32:58,926 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:58,926 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] [2021-10-11 00:32:58,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:32:58,927 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:58,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:58,927 INFO L82 PathProgramCache]: Analyzing trace with hash -685298349, now seen corresponding path program 1 times [2021-10-11 00:32:58,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:58,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974023496] [2021-10-11 00:32:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:59,019 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 00:32:59,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974023496] [2021-10-11 00:32:59,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:59,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:32:59,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467443933] [2021-10-11 00:32:59,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:32:59,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:59,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:32:59,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:32:59,023 INFO L87 Difference]: Start difference. First operand 64 states and 93 transitions. Second operand 5 states. [2021-10-11 00:32:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:59,184 INFO L93 Difference]: Finished difference Result 348 states and 530 transitions. [2021-10-11 00:32:59,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:32:59,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 00:32:59,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:59,191 INFO L225 Difference]: With dead ends: 348 [2021-10-11 00:32:59,191 INFO L226 Difference]: Without dead ends: 290 [2021-10-11 00:32:59,192 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 00:32:59,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-10-11 00:32:59,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 116. [2021-10-11 00:32:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-10-11 00:32:59,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2021-10-11 00:32:59,233 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 25 [2021-10-11 00:32:59,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:59,233 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2021-10-11 00:32:59,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:32:59,234 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2021-10-11 00:32:59,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:32:59,240 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:59,240 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 00:32:59,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:32:59,240 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:59,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:59,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1650359957, now seen corresponding path program 1 times [2021-10-11 00:32:59,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:59,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821776388] [2021-10-11 00:32:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:59,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:59,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:59,446 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:59,447 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:32:59,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:32:59,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:32:59 BoogieIcfgContainer [2021-10-11 00:32:59,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:32:59,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:32:59,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:32:59,558 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:32:59,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:58" (3/4) ... [2021-10-11 00:32:59,561 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:32:59,681 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d83dd4d7-0ec2-49a2-be85-1827ceba2384/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:32:59,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:32:59,684 INFO L168 Benchmark]: Toolchain (without parser) took 3679.08 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 65.3 MB in the beginning and 90.2 MB in the end (delta: -24.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:59,684 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 102.8 MB. Free memory is still 82.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:59,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.18 ms. Allocated memory is still 102.8 MB. Free memory was 65.1 MB in the beginning and 68.0 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:59,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.14 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 64.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:59,686 INFO L168 Benchmark]: Boogie Preprocessor took 43.06 ms. Allocated memory is still 102.8 MB. Free memory was 64.8 MB in the beginning and 62.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:59,687 INFO L168 Benchmark]: RCFGBuilder took 1365.04 ms. Allocated memory is still 102.8 MB. Free memory was 62.4 MB in the beginning and 46.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:59,687 INFO L168 Benchmark]: TraceAbstraction took 1459.42 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 51.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:59,688 INFO L168 Benchmark]: Witness Printer took 124.13 ms. Allocated memory is still 123.7 MB. Free memory was 50.7 MB in the beginning and 90.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:59,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 102.8 MB. Free memory is still 82.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 610.18 ms. Allocated memory is still 102.8 MB. Free memory was 65.1 MB in the beginning and 68.0 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.14 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 64.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.06 ms. Allocated memory is still 102.8 MB. Free memory was 64.8 MB in the beginning and 62.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1365.04 ms. Allocated memory is still 102.8 MB. Free memory was 62.4 MB in the beginning and 46.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1459.42 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 51.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Witness Printer took 124.13 ms. Allocated memory is still 123.7 MB. Free memory was 50.7 MB in the beginning and 90.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 4.3 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: [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int cleanupTimeShifts = 4; [L596] int waterLevel = 1; [L597] int methaneLevelCritical = 0; [L755] int pumpRunning = 0; [L756] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L570] int retValue_acc ; [L571] 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] [L577] tmp = valid_product() [L579] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L687] int splverifierCounter ; [L688] int tmp ; [L689] int tmp___0 ; [L690] int tmp___1 ; [L691] int tmp___2 ; [L694] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L696] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L698] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L704] tmp = __VERIFIER_nondet_int() [L706] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] COND TRUE waterLevel < 2 [L615] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L714] tmp___0 = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L724] tmp___2 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L762] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L769] COND TRUE \read(systemActive) [L791] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L794] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L635] int retValue_acc ; [L638] retValue_acc = methaneLevelCritical [L639] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L667] int retValue_acc ; [L670] retValue_acc = waterLevel [L671] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L843] int retValue_acc ; [L846] retValue_acc = pumpRunning [L847] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L46] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 299 SDslu, 246 SDs, 0 SdLazy, 46 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, 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, 4 MinimizatonAttempts, 178 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3488 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...