/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:07:01,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:07:01,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:07:01,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:07:01,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:07:01,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:07:01,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:07:01,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:07:01,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:07:01,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:07:01,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:07:01,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:07:01,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:07:01,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:07:01,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:07:01,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:07:01,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:07:01,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:07:01,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:07:01,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:07:01,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:07:01,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:07:01,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:07:01,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:07:01,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:07:01,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:07:01,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:07:01,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:07:01,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:07:01,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:07:01,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:07:01,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:07:01,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:07:01,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:07:01,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:07:01,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:07:01,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:07:01,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:07:01,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:07:01,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:07:01,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:07:01,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:07:01,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:07:01,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:07:01,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:07:01,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:07:01,410 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:07:01,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:07:01,411 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:07:01,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:07:01,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:07:01,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:07:01,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:07:01,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:07:01,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:07:01,413 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:07:01,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:07:01,413 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:07:01,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:07:01,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:07:01,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:07:01,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:07:01,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:07:01,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:07:01,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:07:01,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:07:01,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:07:01,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:07:01,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:07:01,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:07:01,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:07:01,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:07:01,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:07:01,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:07:01,694 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:07:01,695 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:07:01,695 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2019-11-06 22:07:01,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b6c507e/113e4ac9ebc04142a15359a719a88849/FLAG39811fa68 [2019-11-06 22:07:02,280 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:07:02,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2019-11-06 22:07:02,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b6c507e/113e4ac9ebc04142a15359a719a88849/FLAG39811fa68 [2019-11-06 22:07:02,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b6c507e/113e4ac9ebc04142a15359a719a88849 [2019-11-06 22:07:02,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:07:02,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:07:02,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:07:02,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:07:02,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:07:02,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:02" (1/1) ... [2019-11-06 22:07:02,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577ee990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:02, skipping insertion in model container [2019-11-06 22:07:02,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:02" (1/1) ... [2019-11-06 22:07:02,635 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:07:02,678 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:07:03,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:07:03,156 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:07:03,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:07:03,284 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:07:03,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03 WrapperNode [2019-11-06 22:07:03,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:07:03,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:07:03,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:07:03,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:07:03,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... [2019-11-06 22:07:03,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... [2019-11-06 22:07:03,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... [2019-11-06 22:07:03,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... [2019-11-06 22:07:03,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... [2019-11-06 22:07:03,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... [2019-11-06 22:07:03,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... [2019-11-06 22:07:03,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:07:03,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:07:03,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:07:03,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:07:03,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-06 22:07:03,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:07:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:07:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:07:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:07:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:07:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:07:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:07:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:07:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:07:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:07:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:07:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:07:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:07:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:07:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:07:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:07:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:07:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:07:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:07:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:07:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:07:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-11-06 22:07:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:07:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:07:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:07:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:07:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:07:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:07:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:07:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:07:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:07:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:07:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:07:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:07:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:07:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:07:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:07:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:07:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:07:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:07:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:07:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:07:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:07:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:07:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:07:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:07:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:07:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:07:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:07:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-11-06 22:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:07:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:07:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:07:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:07:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:07:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:07:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:07:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:07:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:07:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:07:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:07:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:07:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:07:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:07:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:07:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:07:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:07:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:07:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:07:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:07:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:07:04,588 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:07:04,588 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:07:04,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:04 BoogieIcfgContainer [2019-11-06 22:07:04,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:07:04,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:07:04,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:07:04,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:07:04,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:07:02" (1/3) ... [2019-11-06 22:07:04,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7600242d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:04, skipping insertion in model container [2019-11-06 22:07:04,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:03" (2/3) ... [2019-11-06 22:07:04,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7600242d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:04, skipping insertion in model container [2019-11-06 22:07:04,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:04" (3/3) ... [2019-11-06 22:07:04,602 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2019-11-06 22:07:04,611 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:07:04,620 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:07:04,632 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:07:04,667 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:07:04,667 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:07:04,667 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:07:04,667 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:07:04,668 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:07:04,668 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:07:04,668 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:07:04,668 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:07:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2019-11-06 22:07:04,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:07:04,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:04,703 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:07:04,705 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash 441969018, now seen corresponding path program 1 times [2019-11-06 22:07:04,719 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:04,720 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393695607] [2019-11-06 22:07:04,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,344 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:05,467 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393695607] [2019-11-06 22:07:05,469 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:05,470 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:07:05,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033417521] [2019-11-06 22:07:05,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:07:05,487 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:05,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:07:05,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:07:05,505 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 4 states. [2019-11-06 22:07:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:06,570 INFO L93 Difference]: Finished difference Result 287 states and 366 transitions. [2019-11-06 22:07:06,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:07:06,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:07:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:06,587 INFO L225 Difference]: With dead ends: 287 [2019-11-06 22:07:06,587 INFO L226 Difference]: Without dead ends: 158 [2019-11-06 22:07:06,591 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:07:06,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-06 22:07:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 130. [2019-11-06 22:07:06,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-06 22:07:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2019-11-06 22:07:06,684 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 59 [2019-11-06 22:07:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:06,685 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2019-11-06 22:07:06,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:07:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2019-11-06 22:07:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-06 22:07:06,689 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:06,689 INFO L410 BasicCegarLoop]: trace histogram [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, 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] [2019-11-06 22:07:06,689 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:06,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1933724587, now seen corresponding path program 1 times [2019-11-06 22:07:06,690 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:06,690 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512696277] [2019-11-06 22:07:06,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,180 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:07,306 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512696277] [2019-11-06 22:07:07,306 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:07,306 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:07:07,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552746138] [2019-11-06 22:07:07,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:07:07,309 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:07,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:07:07,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:07:07,309 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 9 states. [2019-11-06 22:07:07,774 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:08,166 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 22:07:08,469 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:08,736 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:10,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:10,009 INFO L93 Difference]: Finished difference Result 260 states and 321 transitions. [2019-11-06 22:07:10,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:07:10,010 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-11-06 22:07:10,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:10,013 INFO L225 Difference]: With dead ends: 260 [2019-11-06 22:07:10,013 INFO L226 Difference]: Without dead ends: 158 [2019-11-06 22:07:10,015 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:07:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-06 22:07:10,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 130. [2019-11-06 22:07:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-06 22:07:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2019-11-06 22:07:10,092 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 150 transitions. Word has length 64 [2019-11-06 22:07:10,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:10,092 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 150 transitions. [2019-11-06 22:07:10,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:07:10,093 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 150 transitions. [2019-11-06 22:07:10,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-06 22:07:10,094 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:10,095 INFO L410 BasicCegarLoop]: trace histogram [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, 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] [2019-11-06 22:07:10,095 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:10,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:10,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1782817326, now seen corresponding path program 1 times [2019-11-06 22:07:10,096 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:10,096 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369415646] [2019-11-06 22:07:10,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,464 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:10,587 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369415646] [2019-11-06 22:07:10,588 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:10,588 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:07:10,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910615398] [2019-11-06 22:07:10,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:07:10,590 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:10,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:07:10,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:07:10,591 INFO L87 Difference]: Start difference. First operand 130 states and 150 transitions. Second operand 7 states. [2019-11-06 22:07:11,072 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:12,705 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:13,244 INFO L93 Difference]: Finished difference Result 377 states and 484 transitions. [2019-11-06 22:07:13,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 22:07:13,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-11-06 22:07:13,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:13,253 INFO L225 Difference]: With dead ends: 377 [2019-11-06 22:07:13,254 INFO L226 Difference]: Without dead ends: 275 [2019-11-06 22:07:13,255 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:07:13,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-06 22:07:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 225. [2019-11-06 22:07:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-11-06 22:07:13,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 269 transitions. [2019-11-06 22:07:13,318 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 269 transitions. Word has length 72 [2019-11-06 22:07:13,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:13,318 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 269 transitions. [2019-11-06 22:07:13,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:07:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 269 transitions. [2019-11-06 22:07:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-06 22:07:13,320 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:13,321 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:07:13,321 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:13,321 INFO L82 PathProgramCache]: Analyzing trace with hash 526954491, now seen corresponding path program 1 times [2019-11-06 22:07:13,322 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:13,322 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815401491] [2019-11-06 22:07:13,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,692 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:07:13,808 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815401491] [2019-11-06 22:07:13,808 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:13,808 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:07:13,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465080229] [2019-11-06 22:07:13,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:07:13,810 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:13,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:07:13,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:07:13,810 INFO L87 Difference]: Start difference. First operand 225 states and 269 transitions. Second operand 9 states. [2019-11-06 22:07:14,280 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:14,952 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:16,031 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:16,361 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:16,819 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:17,090 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:17,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:17,482 INFO L93 Difference]: Finished difference Result 471 states and 597 transitions. [2019-11-06 22:07:17,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:07:17,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2019-11-06 22:07:17,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:17,487 INFO L225 Difference]: With dead ends: 471 [2019-11-06 22:07:17,487 INFO L226 Difference]: Without dead ends: 274 [2019-11-06 22:07:17,489 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:07:17,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-11-06 22:07:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 224. [2019-11-06 22:07:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-06 22:07:17,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 266 transitions. [2019-11-06 22:07:17,535 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 266 transitions. Word has length 86 [2019-11-06 22:07:17,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:17,536 INFO L462 AbstractCegarLoop]: Abstraction has 224 states and 266 transitions. [2019-11-06 22:07:17,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:07:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 266 transitions. [2019-11-06 22:07:17,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-06 22:07:17,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:17,538 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 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] [2019-11-06 22:07:17,539 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:17,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1805003882, now seen corresponding path program 1 times [2019-11-06 22:07:17,539 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:17,540 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423421825] [2019-11-06 22:07:17,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,809 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:17,988 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423421825] [2019-11-06 22:07:17,988 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:17,988 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:07:17,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965523480] [2019-11-06 22:07:17,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:07:17,989 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:17,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:07:17,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:07:17,990 INFO L87 Difference]: Start difference. First operand 224 states and 266 transitions. Second operand 9 states. [2019-11-06 22:07:19,105 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:19,363 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:07:19,636 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:19,899 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:20,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:20,703 INFO L93 Difference]: Finished difference Result 471 states and 606 transitions. [2019-11-06 22:07:20,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:07:20,707 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2019-11-06 22:07:20,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:20,714 INFO L225 Difference]: With dead ends: 471 [2019-11-06 22:07:20,714 INFO L226 Difference]: Without dead ends: 275 [2019-11-06 22:07:20,715 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:07:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-06 22:07:20,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 229. [2019-11-06 22:07:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-11-06 22:07:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 271 transitions. [2019-11-06 22:07:20,764 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 271 transitions. Word has length 102 [2019-11-06 22:07:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:20,764 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 271 transitions. [2019-11-06 22:07:20,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:07:20,765 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 271 transitions. [2019-11-06 22:07:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-06 22:07:20,766 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:20,767 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 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] [2019-11-06 22:07:20,767 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:20,767 INFO L82 PathProgramCache]: Analyzing trace with hash -244383960, now seen corresponding path program 1 times [2019-11-06 22:07:20,767 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:20,768 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393080822] [2019-11-06 22:07:20,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,051 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:21,208 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393080822] [2019-11-06 22:07:21,209 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:21,209 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:07:21,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134558755] [2019-11-06 22:07:21,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:07:21,210 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:21,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:07:21,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:07:21,211 INFO L87 Difference]: Start difference. First operand 229 states and 271 transitions. Second operand 11 states. [2019-11-06 22:07:21,813 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:22,104 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:22,374 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:23,125 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:23,410 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:23,675 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:24,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:24,619 INFO L93 Difference]: Finished difference Result 481 states and 617 transitions. [2019-11-06 22:07:24,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:07:24,620 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2019-11-06 22:07:24,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:24,623 INFO L225 Difference]: With dead ends: 481 [2019-11-06 22:07:24,623 INFO L226 Difference]: Without dead ends: 280 [2019-11-06 22:07:24,625 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:07:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-11-06 22:07:24,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 233. [2019-11-06 22:07:24,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-11-06 22:07:24,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 275 transitions. [2019-11-06 22:07:24,664 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 275 transitions. Word has length 102 [2019-11-06 22:07:24,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:24,664 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 275 transitions. [2019-11-06 22:07:24,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:07:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 275 transitions. [2019-11-06 22:07:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-06 22:07:24,666 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:24,667 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 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] [2019-11-06 22:07:24,667 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:24,667 INFO L82 PathProgramCache]: Analyzing trace with hash 218584628, now seen corresponding path program 1 times [2019-11-06 22:07:24,667 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:24,668 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20109864] [2019-11-06 22:07:24,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:24,952 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:25,079 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20109864] [2019-11-06 22:07:25,079 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:25,079 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:07:25,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278798542] [2019-11-06 22:07:25,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:07:25,081 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:25,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:07:25,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:07:25,082 INFO L87 Difference]: Start difference. First operand 233 states and 275 transitions. Second operand 6 states. [2019-11-06 22:07:25,876 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:26,724 INFO L93 Difference]: Finished difference Result 409 states and 488 transitions. [2019-11-06 22:07:26,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:07:26,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-11-06 22:07:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:26,727 INFO L225 Difference]: With dead ends: 409 [2019-11-06 22:07:26,727 INFO L226 Difference]: Without dead ends: 240 [2019-11-06 22:07:26,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:07:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-11-06 22:07:26,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 203. [2019-11-06 22:07:26,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-11-06 22:07:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 231 transitions. [2019-11-06 22:07:26,763 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 231 transitions. Word has length 98 [2019-11-06 22:07:26,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:26,764 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 231 transitions. [2019-11-06 22:07:26,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:07:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 231 transitions. [2019-11-06 22:07:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-06 22:07:26,765 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:26,765 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 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] [2019-11-06 22:07:26,766 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:26,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:26,766 INFO L82 PathProgramCache]: Analyzing trace with hash 725197063, now seen corresponding path program 1 times [2019-11-06 22:07:26,766 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:26,767 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194908511] [2019-11-06 22:07:26,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,036 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:27,171 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194908511] [2019-11-06 22:07:27,171 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:27,171 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:07:27,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654924279] [2019-11-06 22:07:27,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:07:27,172 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:27,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:07:27,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:07:27,172 INFO L87 Difference]: Start difference. First operand 203 states and 231 transitions. Second operand 7 states. [2019-11-06 22:07:27,691 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:28,279 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:29,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:29,822 INFO L93 Difference]: Finished difference Result 573 states and 717 transitions. [2019-11-06 22:07:29,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-06 22:07:29,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2019-11-06 22:07:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:29,830 INFO L225 Difference]: With dead ends: 573 [2019-11-06 22:07:29,830 INFO L226 Difference]: Without dead ends: 398 [2019-11-06 22:07:29,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:07:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-11-06 22:07:29,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 360. [2019-11-06 22:07:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2019-11-06 22:07:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 422 transitions. [2019-11-06 22:07:29,919 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 422 transitions. Word has length 102 [2019-11-06 22:07:29,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:29,919 INFO L462 AbstractCegarLoop]: Abstraction has 360 states and 422 transitions. [2019-11-06 22:07:29,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:07:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 422 transitions. [2019-11-06 22:07:29,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-06 22:07:29,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:29,922 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 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] [2019-11-06 22:07:29,922 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:29,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:29,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1122638495, now seen corresponding path program 1 times [2019-11-06 22:07:29,922 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:29,923 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763566004] [2019-11-06 22:07:29,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,271 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:30,495 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763566004] [2019-11-06 22:07:30,495 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:30,496 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:07:30,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901650893] [2019-11-06 22:07:30,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:07:30,499 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:30,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:07:30,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:07:30,500 INFO L87 Difference]: Start difference. First operand 360 states and 422 transitions. Second operand 12 states. [2019-11-06 22:07:31,038 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:31,698 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:32,718 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:33,053 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:33,321 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:07:33,612 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:33,912 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:34,856 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:35,137 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:35,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:35,817 INFO L93 Difference]: Finished difference Result 988 states and 1228 transitions. [2019-11-06 22:07:35,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-06 22:07:35,817 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2019-11-06 22:07:35,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:35,822 INFO L225 Difference]: With dead ends: 988 [2019-11-06 22:07:35,822 INFO L226 Difference]: Without dead ends: 721 [2019-11-06 22:07:35,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2019-11-06 22:07:35,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-11-06 22:07:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 614. [2019-11-06 22:07:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2019-11-06 22:07:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 712 transitions. [2019-11-06 22:07:35,932 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 712 transitions. Word has length 106 [2019-11-06 22:07:35,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:35,933 INFO L462 AbstractCegarLoop]: Abstraction has 614 states and 712 transitions. [2019-11-06 22:07:35,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:07:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 712 transitions. [2019-11-06 22:07:35,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-11-06 22:07:35,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:35,935 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:07:35,936 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:35,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:35,936 INFO L82 PathProgramCache]: Analyzing trace with hash 193650261, now seen corresponding path program 1 times [2019-11-06 22:07:35,936 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:35,936 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575576623] [2019-11-06 22:07:35,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,370 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-06 22:07:36,735 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575576623] [2019-11-06 22:07:36,735 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23611374] [2019-11-06 22:07:36,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:07:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:36,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-06 22:07:36,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:07:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:07:37,122 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 22:07:37,123 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-11-06 22:07:37,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275794963] [2019-11-06 22:07:37,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-06 22:07:37,124 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:37,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-06 22:07:37,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:07:37,125 INFO L87 Difference]: Start difference. First operand 614 states and 712 transitions. Second operand 20 states. [2019-11-06 22:07:37,953 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:07:38,329 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-11-06 22:07:38,630 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-06 22:07:38,948 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-06 22:07:39,789 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-11-06 22:07:40,118 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 22:07:40,590 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 206