./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer --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 a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-a4ecdab [2020-11-28 03:11:05,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:05,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:05,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:05,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:05,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:05,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:05,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:05,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:05,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:05,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:05,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:05,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:05,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:05,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:05,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:05,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:05,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:05,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:05,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:05,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:05,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:05,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:05,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:05,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:05,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:05,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:05,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:05,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:05,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:05,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:05,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:05,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:05,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:05,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:05,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:05,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:05,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:05,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:05,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:05,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:05,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:11:05,852 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:05,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:05,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:05,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:05,856 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:05,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:05,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:05,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:05,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:05,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:05,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:05,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:05,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:05,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:05,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:05,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:05,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:05,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:05,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:05,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:05,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:05,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:05,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:05,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:05,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:05,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:05,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:05,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:05,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:05,864 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-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 [2020-11-28 03:11:06,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:06,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:06,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:06,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:06,236 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:06,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-11-28 03:11:06,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/data/775574a49/4dbb8cb522154a7c914e1b928c42a833/FLAG5b6f4c3f9 [2020-11-28 03:11:07,031 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:07,032 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-11-28 03:11:07,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/data/775574a49/4dbb8cb522154a7c914e1b928c42a833/FLAG5b6f4c3f9 [2020-11-28 03:11:07,249 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/data/775574a49/4dbb8cb522154a7c914e1b928c42a833 [2020-11-28 03:11:07,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:07,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:07,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:07,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:07,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:07,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6656ece1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07, skipping insertion in model container [2020-11-28 03:11:07,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:07,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:07,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:07,837 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:07,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:07,982 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:07,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07 WrapperNode [2020-11-28 03:11:07,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:07,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:07,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:07,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:07,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:08,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:08,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:08,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:08,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:08,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:08,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:08,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:08,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:08,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/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 [2020-11-28 03:11:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:09,352 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:09,359 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-28 03:11:09,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:09 BoogieIcfgContainer [2020-11-28 03:11:09,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:09,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:09,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:09,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:09,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:07" (1/3) ... [2020-11-28 03:11:09,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b551a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:09, skipping insertion in model container [2020-11-28 03:11:09,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (2/3) ... [2020-11-28 03:11:09,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b551a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:09, skipping insertion in model container [2020-11-28 03:11:09,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:09" (3/3) ... [2020-11-28 03:11:09,375 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2020-11-28 03:11:09,393 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:09,398 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:11:09,413 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:11:09,457 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:09,457 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:09,458 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:09,458 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:09,458 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:09,458 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:09,459 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:09,459 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:09,490 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-11-28 03:11:09,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:11:09,499 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:09,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:09,500 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:09,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:09,507 INFO L82 PathProgramCache]: Analyzing trace with hash -77049212, now seen corresponding path program 1 times [2020-11-28 03:11:09,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:09,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958412854] [2020-11-28 03:11:09,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:09,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958412854] [2020-11-28 03:11:09,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:09,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:09,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238851657] [2020-11-28 03:11:09,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:11:09,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:09,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:11:09,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:09,897 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2020-11-28 03:11:09,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:09,962 INFO L93 Difference]: Finished difference Result 182 states and 273 transitions. [2020-11-28 03:11:09,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:11:09,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:11:09,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:09,976 INFO L225 Difference]: With dead ends: 182 [2020-11-28 03:11:09,976 INFO L226 Difference]: Without dead ends: 89 [2020-11-28 03:11:09,980 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 [2020-11-28 03:11:09,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-28 03:11:10,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-28 03:11:10,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-28 03:11:10,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2020-11-28 03:11:10,030 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2020-11-28 03:11:10,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,030 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2020-11-28 03:11:10,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:11:10,031 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-11-28 03:11:10,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:11:10,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:10,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:11:10,033 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,034 INFO L82 PathProgramCache]: Analyzing trace with hash -295885181, now seen corresponding path program 1 times [2020-11-28 03:11:10,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399089187] [2020-11-28 03:11:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399089187] [2020-11-28 03:11:10,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:10,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403868736] [2020-11-28 03:11:10,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:10,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:10,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:10,195 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2020-11-28 03:11:10,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:10,216 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-11-28 03:11:10,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:10,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:11:10,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:10,220 INFO L225 Difference]: With dead ends: 89 [2020-11-28 03:11:10,221 INFO L226 Difference]: Without dead ends: 41 [2020-11-28 03:11:10,222 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 [2020-11-28 03:11:10,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-28 03:11:10,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-28 03:11:10,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 03:11:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-11-28 03:11:10,240 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-11-28 03:11:10,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,240 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-11-28 03:11:10,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:10,241 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-11-28 03:11:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:11:10,243 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,244 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] [2020-11-28 03:11:10,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:11:10,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:10,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1417220031, now seen corresponding path program 1 times [2020-11-28 03:11:10,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544019090] [2020-11-28 03:11:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544019090] [2020-11-28 03:11:10,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:10,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094533011] [2020-11-28 03:11:10,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:10,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:10,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:10,372 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 3 states. [2020-11-28 03:11:10,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:10,410 INFO L93 Difference]: Finished difference Result 109 states and 160 transitions. [2020-11-28 03:11:10,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:10,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:11:10,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:10,416 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:11:10,418 INFO L226 Difference]: Without dead ends: 75 [2020-11-28 03:11:10,419 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 [2020-11-28 03:11:10,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-28 03:11:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-11-28 03:11:10,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-28 03:11:10,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2020-11-28 03:11:10,432 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 24 [2020-11-28 03:11:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,432 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2020-11-28 03:11:10,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-11-28 03:11:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:11:10,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,434 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] [2020-11-28 03:11:10,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:11:10,435 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash -462384263, now seen corresponding path program 1 times [2020-11-28 03:11:10,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931489665] [2020-11-28 03:11:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931489665] [2020-11-28 03:11:10,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:10,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62244903] [2020-11-28 03:11:10,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:10,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:10,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:10,552 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2020-11-28 03:11:10,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:10,651 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2020-11-28 03:11:10,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:10,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:11:10,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:10,654 INFO L225 Difference]: With dead ends: 178 [2020-11-28 03:11:10,654 INFO L226 Difference]: Without dead ends: 114 [2020-11-28 03:11:10,655 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 [2020-11-28 03:11:10,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-28 03:11:10,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2020-11-28 03:11:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-28 03:11:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 164 transitions. [2020-11-28 03:11:10,690 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 164 transitions. Word has length 25 [2020-11-28 03:11:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,691 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 164 transitions. [2020-11-28 03:11:10,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 164 transitions. [2020-11-28 03:11:10,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:11:10,693 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,693 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] [2020-11-28 03:11:10,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:11:10,693 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1738728008, now seen corresponding path program 1 times [2020-11-28 03:11:10,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701448325] [2020-11-28 03:11:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701448325] [2020-11-28 03:11:10,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:10,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483372548] [2020-11-28 03:11:10,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:10,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:10,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:10,832 INFO L87 Difference]: Start difference. First operand 112 states and 164 transitions. Second operand 5 states. [2020-11-28 03:11:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:11,010 INFO L93 Difference]: Finished difference Result 544 states and 809 transitions. [2020-11-28 03:11:11,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:11:11,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:11:11,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:11,018 INFO L225 Difference]: With dead ends: 544 [2020-11-28 03:11:11,018 INFO L226 Difference]: Without dead ends: 439 [2020-11-28 03:11:11,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:11:11,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-11-28 03:11:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 203. [2020-11-28 03:11:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-11-28 03:11:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2020-11-28 03:11:11,079 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 27 [2020-11-28 03:11:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:11,080 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2020-11-28 03:11:11,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2020-11-28 03:11:11,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:11:11,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:11,086 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] [2020-11-28 03:11:11,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:11:11,089 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:11,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:11,090 INFO L82 PathProgramCache]: Analyzing trace with hash 304582848, now seen corresponding path program 1 times [2020-11-28 03:11:11,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:11,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062033978] [2020-11-28 03:11:11,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:11,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062033978] [2020-11-28 03:11:11,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:11,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:11,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458111491] [2020-11-28 03:11:11,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:11,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:11,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:11,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:11,182 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand 5 states. [2020-11-28 03:11:11,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:11,343 INFO L93 Difference]: Finished difference Result 769 states and 1111 transitions. [2020-11-28 03:11:11,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:11:11,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-28 03:11:11,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:11,348 INFO L225 Difference]: With dead ends: 769 [2020-11-28 03:11:11,349 INFO L226 Difference]: Without dead ends: 573 [2020-11-28 03:11:11,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:11:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-11-28 03:11:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 201. [2020-11-28 03:11:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-28 03:11:11,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 286 transitions. [2020-11-28 03:11:11,422 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 286 transitions. Word has length 28 [2020-11-28 03:11:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:11,427 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 286 transitions. [2020-11-28 03:11:11,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2020-11-28 03:11:11,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 03:11:11,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:11,435 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:11,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:11:11,436 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:11,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:11,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1643402821, now seen corresponding path program 1 times [2020-11-28 03:11:11,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:11,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766628323] [2020-11-28 03:11:11,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:11,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766628323] [2020-11-28 03:11:11,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:11,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:11:11,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800993473] [2020-11-28 03:11:11,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:11,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:11,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:11,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:11,550 INFO L87 Difference]: Start difference. First operand 201 states and 286 transitions. Second operand 5 states. [2020-11-28 03:11:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:11,648 INFO L93 Difference]: Finished difference Result 555 states and 781 transitions. [2020-11-28 03:11:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:11:11,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-28 03:11:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:11,655 INFO L225 Difference]: With dead ends: 555 [2020-11-28 03:11:11,657 INFO L226 Difference]: Without dead ends: 361 [2020-11-28 03:11:11,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:11:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-11-28 03:11:11,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 213. [2020-11-28 03:11:11,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-11-28 03:11:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 298 transitions. [2020-11-28 03:11:11,683 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 298 transitions. Word has length 35 [2020-11-28 03:11:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:11,683 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 298 transitions. [2020-11-28 03:11:11,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 298 transitions. [2020-11-28 03:11:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 03:11:11,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:11,686 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:11,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:11:11,686 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:11,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:11,687 INFO L82 PathProgramCache]: Analyzing trace with hash 632285571, now seen corresponding path program 1 times [2020-11-28 03:11:11,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:11,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543861124] [2020-11-28 03:11:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:11,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543861124] [2020-11-28 03:11:11,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:11,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:11,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011392302] [2020-11-28 03:11:11,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:11,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:11,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:11,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:11,785 INFO L87 Difference]: Start difference. First operand 213 states and 298 transitions. Second operand 4 states. [2020-11-28 03:11:11,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:11,842 INFO L93 Difference]: Finished difference Result 515 states and 715 transitions. [2020-11-28 03:11:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:11,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-11-28 03:11:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:11,846 INFO L225 Difference]: With dead ends: 515 [2020-11-28 03:11:11,846 INFO L226 Difference]: Without dead ends: 309 [2020-11-28 03:11:11,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-11-28 03:11:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 221. [2020-11-28 03:11:11,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-11-28 03:11:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 306 transitions. [2020-11-28 03:11:11,874 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 306 transitions. Word has length 35 [2020-11-28 03:11:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:11,875 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 306 transitions. [2020-11-28 03:11:11,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 306 transitions. [2020-11-28 03:11:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 03:11:11,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:11,876 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:11,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:11:11,878 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:11,879 INFO L82 PathProgramCache]: Analyzing trace with hash -388782783, now seen corresponding path program 1 times [2020-11-28 03:11:11,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:11,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864719450] [2020-11-28 03:11:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:11,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864719450] [2020-11-28 03:11:11,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:11,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:11,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774212978] [2020-11-28 03:11:11,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:11,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:11,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:11,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:11,952 INFO L87 Difference]: Start difference. First operand 221 states and 306 transitions. Second operand 3 states. [2020-11-28 03:11:12,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:12,037 INFO L93 Difference]: Finished difference Result 535 states and 735 transitions. [2020-11-28 03:11:12,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:12,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-11-28 03:11:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:12,041 INFO L225 Difference]: With dead ends: 535 [2020-11-28 03:11:12,041 INFO L226 Difference]: Without dead ends: 321 [2020-11-28 03:11:12,042 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 [2020-11-28 03:11:12,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-28 03:11:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-11-28 03:11:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-28 03:11:12,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 428 transitions. [2020-11-28 03:11:12,087 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 428 transitions. Word has length 35 [2020-11-28 03:11:12,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:12,088 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 428 transitions. [2020-11-28 03:11:12,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 428 transitions. [2020-11-28 03:11:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-28 03:11:12,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:12,091 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:12,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:11:12,091 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:12,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:12,092 INFO L82 PathProgramCache]: Analyzing trace with hash -713441279, now seen corresponding path program 1 times [2020-11-28 03:11:12,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:12,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057939353] [2020-11-28 03:11:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:12,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057939353] [2020-11-28 03:11:12,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:12,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:11:12,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636668284] [2020-11-28 03:11:12,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:11:12,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:12,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:11:12,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:11:12,244 INFO L87 Difference]: Start difference. First operand 321 states and 428 transitions. Second operand 8 states. [2020-11-28 03:11:13,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:13,174 INFO L93 Difference]: Finished difference Result 1231 states and 1624 transitions. [2020-11-28 03:11:13,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-28 03:11:13,181 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-11-28 03:11:13,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:13,188 INFO L225 Difference]: With dead ends: 1231 [2020-11-28 03:11:13,188 INFO L226 Difference]: Without dead ends: 917 [2020-11-28 03:11:13,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2020-11-28 03:11:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-11-28 03:11:13,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 321. [2020-11-28 03:11:13,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-28 03:11:13,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 420 transitions. [2020-11-28 03:11:13,238 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 420 transitions. Word has length 36 [2020-11-28 03:11:13,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:13,239 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 420 transitions. [2020-11-28 03:11:13,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:11:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 420 transitions. [2020-11-28 03:11:13,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:11:13,241 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:13,242 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:13,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:11:13,242 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:13,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:13,243 INFO L82 PathProgramCache]: Analyzing trace with hash -415358832, now seen corresponding path program 1 times [2020-11-28 03:11:13,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:13,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21618812] [2020-11-28 03:11:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:13,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21618812] [2020-11-28 03:11:13,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:13,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:13,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444969791] [2020-11-28 03:11:13,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:13,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:13,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:13,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:13,326 INFO L87 Difference]: Start difference. First operand 321 states and 420 transitions. Second operand 3 states. [2020-11-28 03:11:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:13,432 INFO L93 Difference]: Finished difference Result 471 states and 623 transitions. [2020-11-28 03:11:13,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:13,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:11:13,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:13,437 INFO L225 Difference]: With dead ends: 471 [2020-11-28 03:11:13,438 INFO L226 Difference]: Without dead ends: 469 [2020-11-28 03:11:13,441 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 [2020-11-28 03:11:13,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-11-28 03:11:13,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 361. [2020-11-28 03:11:13,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-11-28 03:11:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2020-11-28 03:11:13,496 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 481 transitions. Word has length 51 [2020-11-28 03:11:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:13,497 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 481 transitions. [2020-11-28 03:11:13,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 481 transitions. [2020-11-28 03:11:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-28 03:11:13,499 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:13,499 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:13,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:11:13,500 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:13,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1528713513, now seen corresponding path program 1 times [2020-11-28 03:11:13,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:13,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136584724] [2020-11-28 03:11:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:13,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:13,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:13,819 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:13,819 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:11:13,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:11:14,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:14 BoogieIcfgContainer [2020-11-28 03:11:14,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:11:14,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:14,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:14,082 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:14,082 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:09" (3/4) ... [2020-11-28 03:11:14,086 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:11:14,313 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53428ec9-d6cb-4052-8cab-1186c2f5dac0/bin/uautomizer/witness.graphml [2020-11-28 03:11:14,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:14,316 INFO L168 Benchmark]: Toolchain (without parser) took 7061.16 ms. Allocated memory was 125.8 MB in the beginning and 182.5 MB in the end (delta: 56.6 MB). Free memory was 92.2 MB in the beginning and 56.5 MB in the end (delta: 35.7 MB). Peak memory consumption was 91.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:14,316 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:14,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.16 ms. Allocated memory is still 125.8 MB. Free memory was 92.2 MB in the beginning and 89.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:14,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.33 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 86.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:14,318 INFO L168 Benchmark]: Boogie Preprocessor took 50.46 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 84.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:14,319 INFO L168 Benchmark]: RCFGBuilder took 1238.22 ms. Allocated memory is still 125.8 MB. Free memory was 84.1 MB in the beginning and 92.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 55.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:14,319 INFO L168 Benchmark]: TraceAbstraction took 4715.82 ms. Allocated memory was 125.8 MB in the beginning and 182.5 MB in the end (delta: 56.6 MB). Free memory was 91.9 MB in the beginning and 84.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 63.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:14,320 INFO L168 Benchmark]: Witness Printer took 232.00 ms. Allocated memory is still 182.5 MB. Free memory was 84.8 MB in the beginning and 56.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:14,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 728.16 ms. Allocated memory is still 125.8 MB. Free memory was 92.2 MB in the beginning and 89.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.33 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 86.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.46 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 84.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1238.22 ms. Allocated memory is still 125.8 MB. Free memory was 84.1 MB in the beginning and 92.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 55.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4715.82 ms. Allocated memory was 125.8 MB in the beginning and 182.5 MB in the end (delta: 56.6 MB). Free memory was 91.9 MB in the beginning and 84.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 63.5 MB. Max. memory is 16.1 GB. * Witness Printer took 232.00 ms. Allocated memory is still 182.5 MB. Free memory was 84.8 MB in the beginning and 56.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L509] int cleanupTimeShifts = 4; [L650] int methAndRunningLastTime ; [L759] int pumpRunning = 0; [L760] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int retValue_acc ; [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] tmp = valid_product() [L599] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] int splverifierCounter ; [L692] int tmp ; [L693] int tmp___0 ; [L694] int tmp___1 ; [L695] int tmp___2 ; [L698] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] tmp = __VERIFIER_nondet_int() [L710] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] COND TRUE ! pumpRunning [L910] int retValue_acc ; [L911] int tmp ; [L912] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L916] tmp = isHighWaterSensorDry() [L918] COND FALSE !(\read(tmp)) [L921] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L923] retValue_acc = tmp___0 [L924] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L800] tmp = isHighWaterLevel() [L802] COND TRUE \read(tmp) [L829] int tmp ; [L854] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L858] retValue_acc = isMethaneLevelCritical() [L860] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L833] tmp = isMethaneAlarm() [L835] COND FALSE !(\read(tmp)) [L823] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L683] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L766] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L798] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L665] tmp = isMethaneLevelCritical() [L667] COND TRUE \read(tmp) [L865] int retValue_acc ; [L868] retValue_acc = pumpRunning [L869] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L669] tmp___0 = isPumpRunning() [L671] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] COND FALSE !(\read(methAndRunningLastTime)) [L677] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L798] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L665] tmp = isMethaneLevelCritical() [L667] COND TRUE \read(tmp) [L865] int retValue_acc ; [L868] retValue_acc = pumpRunning [L869] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L669] tmp___0 = isPumpRunning() [L671] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L672] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product43.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 980 SDtfs, 1218 SDslu, 2166 SDs, 0 SdLazy, 315 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 1554 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 20276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...