./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e12a99510f3863baa75b24484dbcccd367dbf9c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:32:54,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:32:54,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:32:54,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:32:54,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:32:54,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:32:54,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:32:54,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:32:54,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:32:54,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:32:54,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:32:54,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:32:54,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:32:54,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:32:54,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:32:54,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:32:54,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:32:54,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:32:54,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:32:54,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:32:54,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:32:54,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:32:54,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:32:54,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:32:54,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:32:54,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:32:54,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:32:54,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:32:54,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:32:54,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:32:54,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:32:54,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:32:54,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:32:54,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:32:54,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:32:54,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:32:54,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:32:54,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:32:54,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:32:54,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:32:54,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:32:54,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:32:54,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:32:54,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:32:54,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:32:54,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:32:54,399 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:32:54,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:32:54,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:32:54,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:32:54,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:32:54,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:32:54,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:32:54,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:32:54,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:32:54,400 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:32:54,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:32:54,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:32:54,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:32:54,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:32:54,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:32:54,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:32:54,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:32:54,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:32:54,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:32:54,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:32:54,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:32:54,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:32:54,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:32:54,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:32:54,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e12a99510f3863baa75b24484dbcccd367dbf9c [2021-10-11 00:32:54,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:32:54,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:32:54,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:32:54,721 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:32:54,722 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:32:54,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-10-11 00:32:54,799 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/data/5f89ac0f2/d0e63092ccb249988fa2abac0d04a2b8/FLAG0d1aaafd7 [2021-10-11 00:32:55,335 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:32:55,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-10-11 00:32:55,354 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/data/5f89ac0f2/d0e63092ccb249988fa2abac0d04a2b8/FLAG0d1aaafd7 [2021-10-11 00:32:55,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/data/5f89ac0f2/d0e63092ccb249988fa2abac0d04a2b8 [2021-10-11 00:32:55,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:32:55,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:32:55,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:55,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:32:55,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:32:55,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:55" (1/1) ... [2021-10-11 00:32:55,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a45b071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:55, skipping insertion in model container [2021-10-11 00:32:55,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:55" (1/1) ... [2021-10-11 00:32:55,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:32:55,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:32:55,932 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[1720,1733] [2021-10-11 00:32:56,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:56,112 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:32:56,141 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[1720,1733] [2021-10-11 00:32:56,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:56,290 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:32:56,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56 WrapperNode [2021-10-11 00:32:56,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:56,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:56,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:32:56,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:32:56,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:56,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:32:56,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:32:56,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:32:56,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... [2021-10-11 00:32:56,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:32:56,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:32:56,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:32:56,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:32:56,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:32:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:32:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:32:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:32:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:32:57,898 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:32:57,898 INFO L299 CfgBuilder]: Removed 276 assume(true) statements. [2021-10-11 00:32:57,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:57 BoogieIcfgContainer [2021-10-11 00:32:57,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:32:57,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:32:57,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:32:57,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:32:57,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:32:55" (1/3) ... [2021-10-11 00:32:57,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6602316b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:32:57, skipping insertion in model container [2021-10-11 00:32:57,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:56" (2/3) ... [2021-10-11 00:32:57,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6602316b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:32:57, skipping insertion in model container [2021-10-11 00:32:57,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:57" (3/3) ... [2021-10-11 00:32:57,912 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2021-10-11 00:32:57,923 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:32:57,926 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:32:57,936 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:32:57,964 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:32:57,965 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:32:57,965 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:32:57,965 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:32:57,965 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:32:57,965 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:32:57,965 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:32:57,966 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:32:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2021-10-11 00:32:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:32:57,994 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:57,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:32:57,995 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:58,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:58,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2002794138, now seen corresponding path program 1 times [2021-10-11 00:32:58,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:58,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684421692] [2021-10-11 00:32:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:58,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684421692] [2021-10-11 00:32:58,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:58,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:32:58,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133297600] [2021-10-11 00:32:58,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:32:58,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:58,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:32:58,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:32:58,376 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2021-10-11 00:32:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:58,449 INFO L93 Difference]: Finished difference Result 372 states and 569 transitions. [2021-10-11 00:32:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:32:58,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:32:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:58,481 INFO L225 Difference]: With dead ends: 372 [2021-10-11 00:32:58,487 INFO L226 Difference]: Without dead ends: 185 [2021-10-11 00:32:58,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:32:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-10-11 00:32:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-10-11 00:32:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2021-10-11 00:32:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2021-10-11 00:32:58,579 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2021-10-11 00:32:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:58,580 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2021-10-11 00:32:58,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:32:58,581 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2021-10-11 00:32:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:32:58,582 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:58,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:32:58,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:32:58,583 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:58,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:58,586 INFO L82 PathProgramCache]: Analyzing trace with hash 956037241, now seen corresponding path program 1 times [2021-10-11 00:32:58,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:58,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831672539] [2021-10-11 00:32:58,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:58,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831672539] [2021-10-11 00:32:58,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:58,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:32:58,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198671622] [2021-10-11 00:32:58,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:32:58,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:58,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:32:58,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:58,758 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 3 states. [2021-10-11 00:32:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:58,780 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2021-10-11 00:32:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:32:58,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:32:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:58,784 INFO L225 Difference]: With dead ends: 185 [2021-10-11 00:32:58,785 INFO L226 Difference]: Without dead ends: 71 [2021-10-11 00:32:58,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-11 00:32:58,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-11 00:32:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-10-11 00:32:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2021-10-11 00:32:58,800 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2021-10-11 00:32:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:58,801 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2021-10-11 00:32:58,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:32:58,802 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2021-10-11 00:32:58,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:32:58,803 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:58,805 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] [2021-10-11 00:32:58,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:32:58,805 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:58,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:58,807 INFO L82 PathProgramCache]: Analyzing trace with hash 748559286, now seen corresponding path program 1 times [2021-10-11 00:32:58,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:58,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052595793] [2021-10-11 00:32:58,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:58,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052595793] [2021-10-11 00:32:58,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:58,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:32:58,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968270266] [2021-10-11 00:32:58,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:32:58,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:58,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:32:58,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:32:58,972 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 6 states. [2021-10-11 00:32:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:59,166 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2021-10-11 00:32:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:32:59,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2021-10-11 00:32:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:59,168 INFO L225 Difference]: With dead ends: 136 [2021-10-11 00:32:59,168 INFO L226 Difference]: Without dead ends: 71 [2021-10-11 00:32:59,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:32:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-11 00:32:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-11 00:32:59,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-10-11 00:32:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2021-10-11 00:32:59,180 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2021-10-11 00:32:59,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:59,180 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2021-10-11 00:32:59,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:32:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2021-10-11 00:32:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:32:59,183 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:59,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:32:59,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:32:59,184 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:59,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:59,186 INFO L82 PathProgramCache]: Analyzing trace with hash -682519882, now seen corresponding path program 1 times [2021-10-11 00:32:59,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:59,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144003841] [2021-10-11 00:32:59,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:59,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:59,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144003841] [2021-10-11 00:32:59,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:59,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:32:59,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412093449] [2021-10-11 00:32:59,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:32:59,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:59,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:32:59,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:59,275 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2021-10-11 00:32:59,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:59,315 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2021-10-11 00:32:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:32:59,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 00:32:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:59,317 INFO L225 Difference]: With dead ends: 145 [2021-10-11 00:32:59,317 INFO L226 Difference]: Without dead ends: 80 [2021-10-11 00:32:59,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:59,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-11 00:32:59,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-10-11 00:32:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-10-11 00:32:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2021-10-11 00:32:59,340 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2021-10-11 00:32:59,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:59,341 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2021-10-11 00:32:59,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:32:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2021-10-11 00:32:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:32:59,347 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:59,347 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] [2021-10-11 00:32:59,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:32:59,348 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:59,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:59,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1459548505, now seen corresponding path program 1 times [2021-10-11 00:32:59,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:59,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062914548] [2021-10-11 00:32:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:59,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062914548] [2021-10-11 00:32:59,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:59,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:32:59,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312174895] [2021-10-11 00:32:59,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:32:59,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:59,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:32:59,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:32:59,440 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand 5 states. [2021-10-11 00:32:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:59,534 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2021-10-11 00:32:59,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:32:59,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 00:32:59,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:59,536 INFO L225 Difference]: With dead ends: 204 [2021-10-11 00:32:59,536 INFO L226 Difference]: Without dead ends: 132 [2021-10-11 00:32:59,537 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 [2021-10-11 00:32:59,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-11 00:32:59,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2021-10-11 00:32:59,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-10-11 00:32:59,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2021-10-11 00:32:59,545 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2021-10-11 00:32:59,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:59,545 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2021-10-11 00:32:59,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:32:59,546 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2021-10-11 00:32:59,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:32:59,547 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:59,547 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] [2021-10-11 00:32:59,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:32:59,547 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:59,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:59,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1202962538, now seen corresponding path program 1 times [2021-10-11 00:32:59,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:59,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996314724] [2021-10-11 00:32:59,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:59,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996314724] [2021-10-11 00:32:59,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:59,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:32:59,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440172855] [2021-10-11 00:32:59,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:32:59,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:59,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:32:59,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:32:59,615 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 5 states. [2021-10-11 00:32:59,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:59,725 INFO L93 Difference]: Finished difference Result 431 states and 600 transitions. [2021-10-11 00:32:59,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:32:59,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 00:32:59,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:59,728 INFO L225 Difference]: With dead ends: 431 [2021-10-11 00:32:59,729 INFO L226 Difference]: Without dead ends: 350 [2021-10-11 00:32:59,730 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 [2021-10-11 00:32:59,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-10-11 00:32:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 162. [2021-10-11 00:32:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-10-11 00:32:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2021-10-11 00:32:59,759 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2021-10-11 00:32:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:59,760 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2021-10-11 00:32:59,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:32:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2021-10-11 00:32:59,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:32:59,765 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:59,765 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] [2021-10-11 00:32:59,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:32:59,766 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:59,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:59,767 INFO L82 PathProgramCache]: Analyzing trace with hash 552949620, now seen corresponding path program 1 times [2021-10-11 00:32:59,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:59,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986162923] [2021-10-11 00:32:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:59,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986162923] [2021-10-11 00:32:59,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:59,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:32:59,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429420670] [2021-10-11 00:32:59,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:32:59,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:59,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:32:59,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:32:59,833 INFO L87 Difference]: Start difference. First operand 162 states and 221 transitions. Second operand 5 states. [2021-10-11 00:32:59,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:59,988 INFO L93 Difference]: Finished difference Result 470 states and 642 transitions. [2021-10-11 00:32:59,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:32:59,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-10-11 00:32:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:59,994 INFO L225 Difference]: With dead ends: 470 [2021-10-11 00:32:59,994 INFO L226 Difference]: Without dead ends: 468 [2021-10-11 00:32:59,995 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 [2021-10-11 00:32:59,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-10-11 00:33:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2021-10-11 00:33:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-10-11 00:33:00,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2021-10-11 00:33:00,013 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 32 [2021-10-11 00:33:00,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:00,014 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2021-10-11 00:33:00,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:33:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2021-10-11 00:33:00,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:33:00,015 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:00,016 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] [2021-10-11 00:33:00,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:33:00,016 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:00,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1792378863, now seen corresponding path program 1 times [2021-10-11 00:33:00,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:00,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660971223] [2021-10-11 00:33:00,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:00,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660971223] [2021-10-11 00:33:00,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:00,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:33:00,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992501512] [2021-10-11 00:33:00,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:00,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:00,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:00,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:00,090 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand 4 states. [2021-10-11 00:33:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:00,153 INFO L93 Difference]: Finished difference Result 388 states and 522 transitions. [2021-10-11 00:33:00,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:00,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2021-10-11 00:33:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:00,155 INFO L225 Difference]: With dead ends: 388 [2021-10-11 00:33:00,155 INFO L226 Difference]: Without dead ends: 232 [2021-10-11 00:33:00,156 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 [2021-10-11 00:33:00,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-11 00:33:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 174. [2021-10-11 00:33:00,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2021-10-11 00:33:00,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2021-10-11 00:33:00,174 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 32 [2021-10-11 00:33:00,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:00,175 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2021-10-11 00:33:00,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:00,175 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2021-10-11 00:33:00,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:33:00,176 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:00,176 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] [2021-10-11 00:33:00,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:33:00,176 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:00,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:00,177 INFO L82 PathProgramCache]: Analyzing trace with hash 2050544301, now seen corresponding path program 1 times [2021-10-11 00:33:00,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:00,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147116580] [2021-10-11 00:33:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:00,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147116580] [2021-10-11 00:33:00,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:00,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:00,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378118557] [2021-10-11 00:33:00,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:00,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:00,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:00,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:00,236 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand 3 states. [2021-10-11 00:33:00,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:00,347 INFO L93 Difference]: Finished difference Result 394 states and 524 transitions. [2021-10-11 00:33:00,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:00,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-10-11 00:33:00,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:00,349 INFO L225 Difference]: With dead ends: 394 [2021-10-11 00:33:00,349 INFO L226 Difference]: Without dead ends: 226 [2021-10-11 00:33:00,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:00,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-11 00:33:00,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2021-10-11 00:33:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2021-10-11 00:33:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 294 transitions. [2021-10-11 00:33:00,374 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 294 transitions. Word has length 32 [2021-10-11 00:33:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:00,375 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 294 transitions. [2021-10-11 00:33:00,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 294 transitions. [2021-10-11 00:33:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 00:33:00,376 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:00,376 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] [2021-10-11 00:33:00,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:33:00,376 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:00,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:00,377 INFO L82 PathProgramCache]: Analyzing trace with hash 979497771, now seen corresponding path program 1 times [2021-10-11 00:33:00,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:00,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11731980] [2021-10-11 00:33:00,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:00,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:00,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:00,546 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:33:00,546 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:33:00,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:33:00,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:00 BoogieIcfgContainer [2021-10-11 00:33:00,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:00,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:00,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:00,668 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:00,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:57" (3/4) ... [2021-10-11 00:33:00,672 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:33:00,759 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367b060-a697-4812-9343-fbb106dcca53/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:33:00,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:00,761 INFO L168 Benchmark]: Toolchain (without parser) took 5110.57 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 72.4 MB in the beginning and 76.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:00,762 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 107.0 MB. Free memory was 78.6 MB in the beginning and 78.6 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:00,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.31 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 72.3 MB in the end (delta: -155.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:00,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.91 ms. Allocated memory is still 107.0 MB. Free memory was 72.3 MB in the beginning and 67.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:00,763 INFO L168 Benchmark]: Boogie Preprocessor took 94.80 ms. Allocated memory is still 107.0 MB. Free memory was 67.6 MB in the beginning and 63.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:00,764 INFO L168 Benchmark]: RCFGBuilder took 1366.06 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.9 MB in the beginning and 87.7 MB in the end (delta: -23.8 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:00,764 INFO L168 Benchmark]: TraceAbstraction took 2761.80 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 87.3 MB in the beginning and 89.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:00,765 INFO L168 Benchmark]: Witness Printer took 92.50 ms. Allocated memory is still 157.3 MB. Free memory was 89.7 MB in the beginning and 76.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:00,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 107.0 MB. Free memory was 78.6 MB in the beginning and 78.6 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 632.31 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 72.3 MB in the end (delta: -155.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 147.91 ms. Allocated memory is still 107.0 MB. Free memory was 72.3 MB in the beginning and 67.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.80 ms. Allocated memory is still 107.0 MB. Free memory was 67.6 MB in the beginning and 63.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1366.06 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.9 MB in the beginning and 87.7 MB in the end (delta: -23.8 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2761.80 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 87.3 MB in the beginning and 89.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * Witness Printer took 92.50 ms. Allocated memory is still 157.3 MB. Free memory was 89.7 MB in the beginning and 76.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 75]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L789] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L791] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] tmp = __VERIFIER_nondet_int() [L799] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE waterLevel < 2 [L899] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] COND FALSE !(\read(methaneLevelCritical)) [L913] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) [L644] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L647] COND FALSE !(\read(pumpRunning)) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L960] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L963] COND FALSE !(waterLevel < 2) [L967] retValue_acc = 0 [L968] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] tmp = isHighWaterSensorDry() [L749] COND FALSE !(\read(tmp)) [L752] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) [L672] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L75] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 189 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1137 SDtfs, 1406 SDslu, 1237 SDs, 0 SdLazy, 199 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 599 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 12994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...