./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.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_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/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 16128519e0e6ced40821c523f29c760d3ecfedbe .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:56:34,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:34,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:34,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:34,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:34,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:34,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:34,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:34,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:34,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:34,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:34,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:34,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:34,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:34,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:34,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:34,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:34,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:34,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:34,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:34,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:34,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:34,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:34,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:34,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:34,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:34,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:34,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:34,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:34,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:34,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:34,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:34,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:34,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:34,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:34,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:34,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:34,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:34,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:34,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:34,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:34,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:34,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:34,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:34,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:34,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:34,865 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:34,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:34,865 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:34,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:34,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:34,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:34,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:34,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:34,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:34,868 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:34,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:34,869 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:34,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:34,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:34,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:34,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:34,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:34,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:34,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:34,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:34,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:34,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:34,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:34,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:34,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:34,873 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_9687c0f6-0cfc-48e2-968e-d900a883f318/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16128519e0e6ced40821c523f29c760d3ecfedbe [2020-11-28 02:56:35,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:35,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:35,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:35,238 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:35,239 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:35,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-28 02:56:35,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/data/f668eda0e/a1c5dbe2c5f1461db2e94f6850237e4a/FLAG999bafb44 [2020-11-28 02:56:35,901 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:35,902 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-28 02:56:35,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/data/f668eda0e/a1c5dbe2c5f1461db2e94f6850237e4a/FLAG999bafb44 [2020-11-28 02:56:36,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/data/f668eda0e/a1c5dbe2c5f1461db2e94f6850237e4a [2020-11-28 02:56:36,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:36,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:36,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:36,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:36,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:36,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364dd9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36, skipping insertion in model container [2020-11-28 02:56:36,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:36,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:36,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:36,611 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:36,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:36,741 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:36,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36 WrapperNode [2020-11-28 02:56:36,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:36,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:36,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:36,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:36,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:36,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:36,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:36,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:36,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:36,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:36,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:36,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:36,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/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 02:56:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:36,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:37,936 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:37,940 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-28 02:56:37,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:37 BoogieIcfgContainer [2020-11-28 02:56:37,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:37,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:37,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:37,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:37,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:36" (1/3) ... [2020-11-28 02:56:37,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce53200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:37, skipping insertion in model container [2020-11-28 02:56:37,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (2/3) ... [2020-11-28 02:56:37,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce53200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:37, skipping insertion in model container [2020-11-28 02:56:37,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:37" (3/3) ... [2020-11-28 02:56:37,953 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-11-28 02:56:37,970 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:37,975 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 02:56:37,987 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 02:56:38,028 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:38,028 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:38,028 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:38,029 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:38,029 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:38,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:38,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:38,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:38,050 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-11-28 02:56:38,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:38,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:38,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,061 INFO L82 PathProgramCache]: Analyzing trace with hash 349597533, now seen corresponding path program 1 times [2020-11-28 02:56:38,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205002738] [2020-11-28 02:56:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,342 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 02:56:38,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205002738] [2020-11-28 02:56:38,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:38,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922973629] [2020-11-28 02:56:38,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:38,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:38,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:38,381 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-11-28 02:56:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,417 INFO L93 Difference]: Finished difference Result 157 states and 236 transitions. [2020-11-28 02:56:38,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:38,418 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 02:56:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,438 INFO L225 Difference]: With dead ends: 157 [2020-11-28 02:56:38,438 INFO L226 Difference]: Without dead ends: 76 [2020-11-28 02:56:38,447 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 02:56:38,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-28 02:56:38,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-28 02:56:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-28 02:56:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-11-28 02:56:38,507 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-11-28 02:56:38,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,508 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-11-28 02:56:38,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-11-28 02:56:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:56:38,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:38,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:38,511 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,514 INFO L82 PathProgramCache]: Analyzing trace with hash -697159364, now seen corresponding path program 1 times [2020-11-28 02:56:38,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764630820] [2020-11-28 02:56:38,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,685 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 02:56:38,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764630820] [2020-11-28 02:56:38,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:38,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108399836] [2020-11-28 02:56:38,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,689 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2020-11-28 02:56:38,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,710 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-11-28 02:56:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 02:56:38,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,714 INFO L225 Difference]: With dead ends: 76 [2020-11-28 02:56:38,714 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 02:56:38,717 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 02:56:38,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 02:56:38,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-28 02:56:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 02:56:38,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-28 02:56:38,731 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-11-28 02:56:38,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,732 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-28 02:56:38,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,733 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-28 02:56:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 02:56:38,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,736 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] [2020-11-28 02:56:38,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:56:38,737 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2020-11-28 02:56:38,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266358268] [2020-11-28 02:56:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,885 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 02:56:38,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266358268] [2020-11-28 02:56:38,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:38,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294575374] [2020-11-28 02:56:38,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,893 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-11-28 02:56:38,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,911 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2020-11-28 02:56:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 02:56:38,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,913 INFO L225 Difference]: With dead ends: 96 [2020-11-28 02:56:38,913 INFO L226 Difference]: Without dead ends: 66 [2020-11-28 02:56:38,914 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 02:56:38,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-28 02:56:38,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-11-28 02:56:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-28 02:56:38,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2020-11-28 02:56:38,922 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 22 [2020-11-28 02:56:38,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,923 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2020-11-28 02:56:38,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,923 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2020-11-28 02:56:38,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 02:56:38,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,924 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] [2020-11-28 02:56:38,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:56:38,925 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2020-11-28 02:56:38,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105841797] [2020-11-28 02:56:38,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,991 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 02:56:38,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105841797] [2020-11-28 02:56:38,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:38,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260373227] [2020-11-28 02:56:38,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,994 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand 3 states. [2020-11-28 02:56:39,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:39,049 INFO L93 Difference]: Finished difference Result 159 states and 238 transitions. [2020-11-28 02:56:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:39,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-28 02:56:39,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:39,051 INFO L225 Difference]: With dead ends: 159 [2020-11-28 02:56:39,052 INFO L226 Difference]: Without dead ends: 103 [2020-11-28 02:56:39,052 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 02:56:39,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-28 02:56:39,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2020-11-28 02:56:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 02:56:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2020-11-28 02:56:39,065 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 23 [2020-11-28 02:56:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:39,066 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-28 02:56:39,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2020-11-28 02:56:39,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 02:56:39,067 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:39,067 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 02:56:39,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:56:39,068 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:39,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2020-11-28 02:56:39,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:39,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876291081] [2020-11-28 02:56:39,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:39,145 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 02:56:39,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876291081] [2020-11-28 02:56:39,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:39,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:39,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165133543] [2020-11-28 02:56:39,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:39,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:39,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:39,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:39,147 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand 5 states. [2020-11-28 02:56:39,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:39,252 INFO L93 Difference]: Finished difference Result 501 states and 748 transitions. [2020-11-28 02:56:39,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:56:39,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 02:56:39,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:39,256 INFO L225 Difference]: With dead ends: 501 [2020-11-28 02:56:39,257 INFO L226 Difference]: Without dead ends: 406 [2020-11-28 02:56:39,260 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 02:56:39,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-11-28 02:56:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 186. [2020-11-28 02:56:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-28 02:56:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 267 transitions. [2020-11-28 02:56:39,307 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 267 transitions. Word has length 25 [2020-11-28 02:56:39,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:39,308 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 267 transitions. [2020-11-28 02:56:39,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 267 transitions. [2020-11-28 02:56:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 02:56:39,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:39,315 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] [2020-11-28 02:56:39,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:56:39,316 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:39,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:39,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1752651633, now seen corresponding path program 1 times [2020-11-28 02:56:39,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:39,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008276513] [2020-11-28 02:56:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:39,443 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 02:56:39,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008276513] [2020-11-28 02:56:39,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:39,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:39,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322761776] [2020-11-28 02:56:39,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:39,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:39,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:39,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:39,447 INFO L87 Difference]: Start difference. First operand 186 states and 267 transitions. Second operand 5 states. [2020-11-28 02:56:39,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:39,600 INFO L93 Difference]: Finished difference Result 524 states and 758 transitions. [2020-11-28 02:56:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:56:39,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-28 02:56:39,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:39,604 INFO L225 Difference]: With dead ends: 524 [2020-11-28 02:56:39,604 INFO L226 Difference]: Without dead ends: 522 [2020-11-28 02:56:39,605 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 02:56:39,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-11-28 02:56:39,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 186. [2020-11-28 02:56:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-28 02:56:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 265 transitions. [2020-11-28 02:56:39,637 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 265 transitions. Word has length 26 [2020-11-28 02:56:39,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:39,641 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 265 transitions. [2020-11-28 02:56:39,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:39,641 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 265 transitions. [2020-11-28 02:56:39,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 02:56:39,644 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:39,644 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] [2020-11-28 02:56:39,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:56:39,646 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:39,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1960990159, now seen corresponding path program 1 times [2020-11-28 02:56:39,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:39,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332279677] [2020-11-28 02:56:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:39,727 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 02:56:39,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332279677] [2020-11-28 02:56:39,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:39,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:56:39,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505961031] [2020-11-28 02:56:39,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:39,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:39,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:39,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:39,729 INFO L87 Difference]: Start difference. First operand 186 states and 265 transitions. Second operand 5 states. [2020-11-28 02:56:39,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:39,799 INFO L93 Difference]: Finished difference Result 510 states and 719 transitions. [2020-11-28 02:56:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:56:39,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 02:56:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:39,803 INFO L225 Difference]: With dead ends: 510 [2020-11-28 02:56:39,803 INFO L226 Difference]: Without dead ends: 330 [2020-11-28 02:56:39,804 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 02:56:39,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-28 02:56:39,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 198. [2020-11-28 02:56:39,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-28 02:56:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 277 transitions. [2020-11-28 02:56:39,828 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 277 transitions. Word has length 30 [2020-11-28 02:56:39,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:39,828 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 277 transitions. [2020-11-28 02:56:39,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 277 transitions. [2020-11-28 02:56:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 02:56:39,830 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:39,830 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] [2020-11-28 02:56:39,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 02:56:39,830 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:39,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1940950127, now seen corresponding path program 1 times [2020-11-28 02:56:39,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:39,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981715860] [2020-11-28 02:56:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:39,919 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 02:56:39,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981715860] [2020-11-28 02:56:39,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:39,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:56:39,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074052928] [2020-11-28 02:56:39,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:39,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:39,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:39,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:39,922 INFO L87 Difference]: Start difference. First operand 198 states and 277 transitions. Second operand 5 states. [2020-11-28 02:56:40,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:40,040 INFO L93 Difference]: Finished difference Result 578 states and 793 transitions. [2020-11-28 02:56:40,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:56:40,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 02:56:40,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:40,045 INFO L225 Difference]: With dead ends: 578 [2020-11-28 02:56:40,045 INFO L226 Difference]: Without dead ends: 386 [2020-11-28 02:56:40,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 02:56:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-11-28 02:56:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 206. [2020-11-28 02:56:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-28 02:56:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 285 transitions. [2020-11-28 02:56:40,079 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 285 transitions. Word has length 30 [2020-11-28 02:56:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:40,079 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 285 transitions. [2020-11-28 02:56:40,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 285 transitions. [2020-11-28 02:56:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 02:56:40,081 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:40,081 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] [2020-11-28 02:56:40,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 02:56:40,082 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:40,083 INFO L82 PathProgramCache]: Analyzing trace with hash -2095851731, now seen corresponding path program 1 times [2020-11-28 02:56:40,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:40,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054647927] [2020-11-28 02:56:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:40,146 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 02:56:40,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054647927] [2020-11-28 02:56:40,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:40,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:40,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549139152] [2020-11-28 02:56:40,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:40,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:40,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:40,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:40,148 INFO L87 Difference]: Start difference. First operand 206 states and 285 transitions. Second operand 3 states. [2020-11-28 02:56:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:40,192 INFO L93 Difference]: Finished difference Result 506 states and 694 transitions. [2020-11-28 02:56:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:40,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-11-28 02:56:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:40,194 INFO L225 Difference]: With dead ends: 506 [2020-11-28 02:56:40,194 INFO L226 Difference]: Without dead ends: 306 [2020-11-28 02:56:40,195 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 02:56:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-28 02:56:40,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2020-11-28 02:56:40,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-11-28 02:56:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 407 transitions. [2020-11-28 02:56:40,224 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 407 transitions. Word has length 30 [2020-11-28 02:56:40,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:40,224 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 407 transitions. [2020-11-28 02:56:40,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 407 transitions. [2020-11-28 02:56:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 02:56:40,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:40,228 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] [2020-11-28 02:56:40,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 02:56:40,228 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:40,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:40,229 INFO L82 PathProgramCache]: Analyzing trace with hash 191299371, now seen corresponding path program 1 times [2020-11-28 02:56:40,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:40,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585957670] [2020-11-28 02:56:40,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:40,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:40,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:40,472 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:40,472 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:40,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 02:56:40,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:40 BoogieIcfgContainer [2020-11-28 02:56:40,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:40,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:40,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:40,611 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:40,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:37" (3/4) ... [2020-11-28 02:56:40,616 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:40,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9687c0f6-0cfc-48e2-968e-d900a883f318/bin/uautomizer/witness.graphml [2020-11-28 02:56:40,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:40,744 INFO L168 Benchmark]: Toolchain (without parser) took 4541.98 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 49.1 MB in the beginning and 77.4 MB in the end (delta: -28.3 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:40,744 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 51.1 MB in the beginning and 51.0 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:40,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.81 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 48.9 MB in the beginning and 64.8 MB in the end (delta: -15.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:40,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.82 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 62.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:40,746 INFO L168 Benchmark]: Boogie Preprocessor took 89.75 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 59.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:40,746 INFO L168 Benchmark]: RCFGBuilder took 1025.29 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 61.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:40,747 INFO L168 Benchmark]: TraceAbstraction took 2665.44 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 60.7 MB in the beginning and 90.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:40,747 INFO L168 Benchmark]: Witness Printer took 131.77 ms. Allocated memory is still 142.6 MB. Free memory was 90.0 MB in the beginning and 77.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:40,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 51.1 MB in the beginning and 51.0 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.81 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 48.9 MB in the beginning and 64.8 MB in the end (delta: -15.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.82 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 62.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.75 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 59.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1025.29 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 61.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2665.44 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 60.7 MB in the beginning and 90.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * Witness Printer took 131.77 ms. Allocated memory is still 142.6 MB. Free memory was 90.0 MB in the beginning and 77.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 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; [L252] int pumpRunning = 0; [L253] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L722] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] int retValue_acc ; [L531] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int retValue_acc ; [L451] retValue_acc = 1 [L452] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L537] tmp = valid_product() [L539] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L183] int splverifierCounter ; [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L187] int tmp___2 ; [L190] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L192] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L194] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L200] tmp = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp___0 = __VERIFIER_nondet_int() [L212] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L220] tmp___2 = __VERIFIER_nondet_int() [L222] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L259] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] COND TRUE \read(systemActive) [L288] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] COND TRUE ! pumpRunning [L385] int retValue_acc ; [L386] int tmp ; [L387] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L391] tmp = isHighWaterSensorDry() [L393] COND FALSE !(\read(tmp)) [L396] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L398] retValue_acc = tmp___0 [L399] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] tmp = isHighWaterLevel() [L295] COND TRUE \read(tmp) [L316] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L154] int tmp ; [L155] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] tmp = isMethaneLevelCritical() [L161] COND TRUE \read(tmp) [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L163] tmp___0 = isPumpRunning() [L165] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 626 SDtfs, 878 SDslu, 958 SDs, 0 SdLazy, 119 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 874 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 11056 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...