./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.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_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/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 64b6967f526946e3373ac9378676a7e29d538a50 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:11:13,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:13,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:13,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:13,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:13,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:13,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:13,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:13,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:13,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:13,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:13,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:13,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:13,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:13,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:13,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:13,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:13,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:13,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:13,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:13,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:13,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:13,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:13,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:13,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:13,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:13,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:13,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:13,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:13,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:13,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:13,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:13,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:13,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:13,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:13,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:13,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:13,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:13,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:13,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:13,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:13,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:11:13,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:13,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:13,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:13,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:13,546 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:13,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:13,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:13,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:13,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:13,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:13,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:13,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:13,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:13,550 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:13,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:13,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:13,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:13,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:13,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:13,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:13,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:13,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:13,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:13,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:13,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:13,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:13,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:13,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:13,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:13,555 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_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b6967f526946e3373ac9378676a7e29d538a50 [2020-11-28 03:11:13,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:13,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:13,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:13,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:13,929 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:13,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-28 03:11:14,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/data/4276419e5/7414088159d044e3beedfcc5b039b2cb/FLAG6d658f47e [2020-11-28 03:11:14,754 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:14,758 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-28 03:11:14,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/data/4276419e5/7414088159d044e3beedfcc5b039b2cb/FLAG6d658f47e [2020-11-28 03:11:14,983 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/data/4276419e5/7414088159d044e3beedfcc5b039b2cb [2020-11-28 03:11:14,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:14,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:14,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:14,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:14,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:14,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:14" (1/1) ... [2020-11-28 03:11:15,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638d3b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:14, skipping insertion in model container [2020-11-28 03:11:15,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:14" (1/1) ... [2020-11-28 03:11:15,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:15,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:15,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:15,707 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:15,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:15,927 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:15,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15 WrapperNode [2020-11-28 03:11:15,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:15,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:15,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:15,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:15,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:15,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:16,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:16,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:16,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:16,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... [2020-11-28 03:11:16,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:16,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:16,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:16,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:16,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/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 03:11:16,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:16,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:16,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:16,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:17,668 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:17,668 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-28 03:11:17,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:17 BoogieIcfgContainer [2020-11-28 03:11:17,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:17,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:17,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:17,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:17,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:14" (1/3) ... [2020-11-28 03:11:17,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a266d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:17, skipping insertion in model container [2020-11-28 03:11:17,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:15" (2/3) ... [2020-11-28 03:11:17,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a266d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:17, skipping insertion in model container [2020-11-28 03:11:17,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:17" (3/3) ... [2020-11-28 03:11:17,683 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-11-28 03:11:17,699 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:17,706 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:11:17,729 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:11:17,786 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:17,786 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:17,786 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:17,788 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:17,789 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:17,789 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:17,789 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:17,790 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:17,812 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-11-28 03:11:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:11:17,820 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:17,821 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 03:11:17,821 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:17,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:17,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1546561908, now seen corresponding path program 1 times [2020-11-28 03:11:17,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:17,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984890008] [2020-11-28 03:11:17,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:18,239 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 03:11:18,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984890008] [2020-11-28 03:11:18,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:18,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:18,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533643737] [2020-11-28 03:11:18,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:11:18,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:18,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:11:18,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:18,277 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 2 states. [2020-11-28 03:11:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:18,321 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2020-11-28 03:11:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:11:18,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:11:18,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:18,336 INFO L225 Difference]: With dead ends: 178 [2020-11-28 03:11:18,336 INFO L226 Difference]: Without dead ends: 87 [2020-11-28 03:11:18,340 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 03:11:18,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-28 03:11:18,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-28 03:11:18,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-28 03:11:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2020-11-28 03:11:18,440 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2020-11-28 03:11:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:18,441 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2020-11-28 03:11:18,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:11:18,443 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2020-11-28 03:11:18,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:11:18,445 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:18,445 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 03:11:18,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:11:18,446 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:18,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1904283421, now seen corresponding path program 1 times [2020-11-28 03:11:18,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:18,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358812376] [2020-11-28 03:11:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:18,685 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 03:11:18,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358812376] [2020-11-28 03:11:18,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:18,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:18,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187521262] [2020-11-28 03:11:18,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:18,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:18,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:18,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:18,695 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 3 states. [2020-11-28 03:11:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:18,713 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2020-11-28 03:11:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:18,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:11:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:18,720 INFO L225 Difference]: With dead ends: 87 [2020-11-28 03:11:18,720 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 03:11:18,722 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 03:11:18,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 03:11:18,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-28 03:11:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 03:11:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-11-28 03:11:18,741 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2020-11-28 03:11:18,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:18,742 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-11-28 03:11:18,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-11-28 03:11:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:11:18,745 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:18,745 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 03:11:18,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:11:18,747 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:18,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1959799754, now seen corresponding path program 1 times [2020-11-28 03:11:18,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:18,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325060028] [2020-11-28 03:11:18,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:18,916 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 03:11:18,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325060028] [2020-11-28 03:11:18,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:18,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:18,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566666514] [2020-11-28 03:11:18,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:18,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:18,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:18,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:18,920 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2020-11-28 03:11:18,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:18,941 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2020-11-28 03:11:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:18,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:11:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:18,946 INFO L225 Difference]: With dead ends: 71 [2020-11-28 03:11:18,946 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 03:11:18,947 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 03:11:18,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 03:11:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-28 03:11:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 03:11:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-28 03:11:18,954 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2020-11-28 03:11:18,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:18,955 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-28 03:11:18,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-28 03:11:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:11:18,962 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:18,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:18,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:11:18,962 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:18,963 INFO L82 PathProgramCache]: Analyzing trace with hash -2070782503, now seen corresponding path program 1 times [2020-11-28 03:11:18,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:18,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019774038] [2020-11-28 03:11:18,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:19,114 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 03:11:19,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019774038] [2020-11-28 03:11:19,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:19,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:19,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874213676] [2020-11-28 03:11:19,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:19,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:19,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:19,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:19,118 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 3 states. [2020-11-28 03:11:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:19,190 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2020-11-28 03:11:19,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:19,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:11:19,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:19,192 INFO L225 Difference]: With dead ends: 93 [2020-11-28 03:11:19,192 INFO L226 Difference]: Without dead ends: 61 [2020-11-28 03:11:19,193 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 03:11:19,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-28 03:11:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-11-28 03:11:19,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-28 03:11:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2020-11-28 03:11:19,212 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2020-11-28 03:11:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:19,213 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2020-11-28 03:11:19,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2020-11-28 03:11:19,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:11:19,216 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:19,216 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 03:11:19,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:11:19,217 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:19,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:19,218 INFO L82 PathProgramCache]: Analyzing trace with hash -576163675, now seen corresponding path program 1 times [2020-11-28 03:11:19,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:19,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773330692] [2020-11-28 03:11:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:19,330 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 03:11:19,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773330692] [2020-11-28 03:11:19,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:19,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:19,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306645595] [2020-11-28 03:11:19,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:19,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:19,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:19,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:19,333 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand 5 states. [2020-11-28 03:11:19,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:19,521 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2020-11-28 03:11:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:11:19,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:11:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:19,525 INFO L225 Difference]: With dead ends: 271 [2020-11-28 03:11:19,525 INFO L226 Difference]: Without dead ends: 219 [2020-11-28 03:11:19,526 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 03:11:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-28 03:11:19,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2020-11-28 03:11:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-28 03:11:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2020-11-28 03:11:19,575 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2020-11-28 03:11:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:19,580 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2020-11-28 03:11:19,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2020-11-28 03:11:19,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:11:19,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:19,584 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] [2020-11-28 03:11:19,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:11:19,585 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:19,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:19,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1086399261, now seen corresponding path program 1 times [2020-11-28 03:11:19,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:19,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548405634] [2020-11-28 03:11:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:19,750 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 03:11:19,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548405634] [2020-11-28 03:11:19,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:19,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:19,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151495143] [2020-11-28 03:11:19,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:19,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:19,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:19,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:19,754 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand 5 states. [2020-11-28 03:11:19,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:19,949 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2020-11-28 03:11:19,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:11:19,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-28 03:11:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:19,954 INFO L225 Difference]: With dead ends: 376 [2020-11-28 03:11:19,954 INFO L226 Difference]: Without dead ends: 280 [2020-11-28 03:11:19,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:11:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-28 03:11:19,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2020-11-28 03:11:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-28 03:11:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2020-11-28 03:11:19,993 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2020-11-28 03:11:19,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:19,998 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2020-11-28 03:11:19,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:19,999 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2020-11-28 03:11:20,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 03:11:20,001 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:20,001 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 03:11:20,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:11:20,002 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:20,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:20,002 INFO L82 PathProgramCache]: Analyzing trace with hash 477559900, now seen corresponding path program 1 times [2020-11-28 03:11:20,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:20,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148355608] [2020-11-28 03:11:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:20,111 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 03:11:20,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148355608] [2020-11-28 03:11:20,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:20,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:11:20,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453819201] [2020-11-28 03:11:20,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:20,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:20,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:20,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:20,115 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand 5 states. [2020-11-28 03:11:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:20,214 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2020-11-28 03:11:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:11:20,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-28 03:11:20,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:20,217 INFO L225 Difference]: With dead ends: 273 [2020-11-28 03:11:20,218 INFO L226 Difference]: Without dead ends: 178 [2020-11-28 03:11:20,219 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 03:11:20,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-28 03:11:20,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2020-11-28 03:11:20,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-28 03:11:20,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2020-11-28 03:11:20,245 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2020-11-28 03:11:20,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:20,247 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2020-11-28 03:11:20,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2020-11-28 03:11:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 03:11:20,257 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:20,257 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 03:11:20,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:11:20,258 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:20,260 INFO L82 PathProgramCache]: Analyzing trace with hash -533557350, now seen corresponding path program 1 times [2020-11-28 03:11:20,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:20,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347722676] [2020-11-28 03:11:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:20,340 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 03:11:20,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347722676] [2020-11-28 03:11:20,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:20,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:20,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940776080] [2020-11-28 03:11:20,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:20,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:20,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:20,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:20,343 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand 4 states. [2020-11-28 03:11:20,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:20,391 INFO L93 Difference]: Finished difference Result 255 states and 347 transitions. [2020-11-28 03:11:20,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:20,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-11-28 03:11:20,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:20,394 INFO L225 Difference]: With dead ends: 255 [2020-11-28 03:11:20,394 INFO L226 Difference]: Without dead ends: 154 [2020-11-28 03:11:20,395 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 03:11:20,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-28 03:11:20,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 112. [2020-11-28 03:11:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-28 03:11:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2020-11-28 03:11:20,421 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2020-11-28 03:11:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:20,422 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-11-28 03:11:20,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2020-11-28 03:11:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 03:11:20,428 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:20,429 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 03:11:20,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:11:20,431 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:20,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:20,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1554625704, now seen corresponding path program 1 times [2020-11-28 03:11:20,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:20,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045824656] [2020-11-28 03:11:20,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:20,533 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 03:11:20,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045824656] [2020-11-28 03:11:20,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:20,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:20,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864288080] [2020-11-28 03:11:20,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:20,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:20,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:20,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:20,541 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand 3 states. [2020-11-28 03:11:20,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:20,581 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2020-11-28 03:11:20,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:20,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-11-28 03:11:20,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:20,584 INFO L225 Difference]: With dead ends: 265 [2020-11-28 03:11:20,584 INFO L226 Difference]: Without dead ends: 160 [2020-11-28 03:11:20,585 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 03:11:20,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-11-28 03:11:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-11-28 03:11:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-28 03:11:20,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2020-11-28 03:11:20,613 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 35 [2020-11-28 03:11:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:20,616 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2020-11-28 03:11:20,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-11-28 03:11:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-28 03:11:20,618 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:20,619 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 03:11:20,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:11:20,620 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:20,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1879284200, now seen corresponding path program 1 times [2020-11-28 03:11:20,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:20,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009807136] [2020-11-28 03:11:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:20,778 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 03:11:20,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009807136] [2020-11-28 03:11:20,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:20,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:11:20,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144218576] [2020-11-28 03:11:20,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:11:20,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:20,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:11:20,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:11:20,781 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand 8 states. [2020-11-28 03:11:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:21,579 INFO L93 Difference]: Finished difference Result 579 states and 757 transitions. [2020-11-28 03:11:21,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-28 03:11:21,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-11-28 03:11:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:21,590 INFO L225 Difference]: With dead ends: 579 [2020-11-28 03:11:21,590 INFO L226 Difference]: Without dead ends: 426 [2020-11-28 03:11:21,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-11-28 03:11:21,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-11-28 03:11:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 160. [2020-11-28 03:11:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-28 03:11:21,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 205 transitions. [2020-11-28 03:11:21,617 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 205 transitions. Word has length 36 [2020-11-28 03:11:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:21,618 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 205 transitions. [2020-11-28 03:11:21,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:11:21,618 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 205 transitions. [2020-11-28 03:11:21,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:11:21,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:21,620 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 03:11:21,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:11:21,620 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:21,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1171715198, now seen corresponding path program 1 times [2020-11-28 03:11:21,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:21,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423141517] [2020-11-28 03:11:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:21,722 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 03:11:21,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423141517] [2020-11-28 03:11:21,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:21,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:21,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271914497] [2020-11-28 03:11:21,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:21,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:21,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:21,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:21,728 INFO L87 Difference]: Start difference. First operand 160 states and 205 transitions. Second operand 3 states. [2020-11-28 03:11:21,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:21,785 INFO L93 Difference]: Finished difference Result 233 states and 301 transitions. [2020-11-28 03:11:21,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:21,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:11:21,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:21,790 INFO L225 Difference]: With dead ends: 233 [2020-11-28 03:11:21,790 INFO L226 Difference]: Without dead ends: 231 [2020-11-28 03:11:21,791 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 03:11:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-28 03:11:21,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 180. [2020-11-28 03:11:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-28 03:11:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2020-11-28 03:11:21,827 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 235 transitions. Word has length 51 [2020-11-28 03:11:21,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:21,828 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 235 transitions. [2020-11-28 03:11:21,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:21,829 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 235 transitions. [2020-11-28 03:11:21,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-28 03:11:21,831 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:21,831 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 03:11:21,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:11:21,832 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:21,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:21,833 INFO L82 PathProgramCache]: Analyzing trace with hash -813198171, now seen corresponding path program 1 times [2020-11-28 03:11:21,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:21,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763622624] [2020-11-28 03:11:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:21,949 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:22,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:22,203 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:22,204 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:11:22,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:11:22,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:22 BoogieIcfgContainer [2020-11-28 03:11:22,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:11:22,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:22,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:22,471 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:22,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:17" (3/4) ... [2020-11-28 03:11:22,474 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:11:22,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bba2b2d3-5fa6-4ff8-996d-fd32a42617bf/bin/uautomizer/witness.graphml [2020-11-28 03:11:22,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:22,727 INFO L168 Benchmark]: Toolchain (without parser) took 7737.06 ms. Allocated memory was 98.6 MB in the beginning and 146.8 MB in the end (delta: 48.2 MB). Free memory was 65.1 MB in the beginning and 52.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:22,728 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:22,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 939.30 ms. Allocated memory is still 98.6 MB. Free memory was 64.9 MB in the beginning and 64.3 MB in the end (delta: 696.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:22,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.87 ms. Allocated memory is still 98.6 MB. Free memory was 64.3 MB in the beginning and 61.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:22,730 INFO L168 Benchmark]: Boogie Preprocessor took 57.41 ms. Allocated memory is still 98.6 MB. Free memory was 61.0 MB in the beginning and 58.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:22,730 INFO L168 Benchmark]: RCFGBuilder took 1564.28 ms. Allocated memory is still 98.6 MB. Free memory was 58.5 MB in the beginning and 40.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:22,731 INFO L168 Benchmark]: TraceAbstraction took 4797.07 ms. Allocated memory was 98.6 MB in the beginning and 146.8 MB in the end (delta: 48.2 MB). Free memory was 40.6 MB in the beginning and 81.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:22,731 INFO L168 Benchmark]: Witness Printer took 253.52 ms. Allocated memory is still 146.8 MB. Free memory was 81.0 MB in the beginning and 52.7 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:22,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 939.30 ms. Allocated memory is still 98.6 MB. Free memory was 64.9 MB in the beginning and 64.3 MB in the end (delta: 696.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.87 ms. Allocated memory is still 98.6 MB. Free memory was 64.3 MB in the beginning and 61.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.41 ms. Allocated memory is still 98.6 MB. Free memory was 61.0 MB in the beginning and 58.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1564.28 ms. Allocated memory is still 98.6 MB. Free memory was 58.5 MB in the beginning and 40.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4797.07 ms. Allocated memory was 98.6 MB in the beginning and 146.8 MB in the end (delta: 48.2 MB). Free memory was 40.6 MB in the beginning and 81.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Witness Printer took 253.52 ms. Allocated memory is still 146.8 MB. Free memory was 81.0 MB in the beginning and 52.7 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: [L45] int methAndRunningLastTime ; [L253] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int pumpRunning = 0; [L458] int systemActive = 1; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L837] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L911] int retValue_acc ; [L912] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] int retValue_acc ; [L822] retValue_acc = 1 [L823] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() [L745] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L648] COND TRUE waterLevel < 2 [L649] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND TRUE ! pumpRunning [L608] int retValue_acc ; [L609] int tmp ; [L610] int tmp___0 ; [L710] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L713] COND FALSE !(waterLevel < 2) [L717] retValue_acc = 0 [L718] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] tmp = isHighWaterSensorDry() [L616] COND FALSE !(\read(tmp)) [L619] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] retValue_acc = tmp___0 [L622] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] tmp = isHighWaterLevel() [L500] COND TRUE \read(tmp) [L527] int tmp ; [L552] int retValue_acc ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] retValue_acc = isMethaneLevelCritical() [L558] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] tmp = isMethaneAlarm() [L533] COND FALSE !(\read(tmp)) [L521] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] COND FALSE !(\read(methaneLevelCritical)) [L663] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND FALSE !(\read(methAndRunningLastTime)) [L72] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L496] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L67] 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_product41.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, 94 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 863 SDtfs, 969 SDslu, 1523 SDs, 0 SdLazy, 220 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred 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: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 725 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 21596 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...