/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/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:48:50,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:48:50,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:48:50,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:48:50,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:48:50,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:48:50,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:48:50,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:48:50,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:48:50,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:48:50,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:48:50,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:48:50,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:48:50,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:48:50,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:48:50,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:48:50,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:48:50,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:48:50,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:48:50,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:48:50,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:48:50,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:48:50,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:48:50,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:48:50,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 11:48:50,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 11:48:50,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 11:48:50,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 11:48:50,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 11:48:50,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 11:48:50,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:48:50,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:48:50,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:48:50,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:48:50,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:48:50,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:48:50,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:48:50,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:48:50,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:48:50,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:48:50,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:48:50,536 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 [2020-07-07 11:48:50,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:48:50,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:48:50,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:48:50,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:48:50,575 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:48:50,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:48:50,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:48:50,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:48:50,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:48:50,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:48:50,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:48:50,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:48:50,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:48:50,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:48:50,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:48:50,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:48:50,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:48:50,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:48:50,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:48:50,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:48:50,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:48:50,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:48:50,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:48:50,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:48:50,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:48:50,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:48:50,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:48:50,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:48:50,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:48:50,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:48:50,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:48:50,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:48:50,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:48:50,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:48:50,885 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:48:50,886 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-07 11:48:50,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfb2f2ec/aba125f22c694b3080773524821c7b9e/FLAGb7781ec10 [2020-07-07 11:48:51,648 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:48:51,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-07 11:48:51,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfb2f2ec/aba125f22c694b3080773524821c7b9e/FLAGb7781ec10 [2020-07-07 11:48:51,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfb2f2ec/aba125f22c694b3080773524821c7b9e [2020-07-07 11:48:51,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:48:51,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:48:51,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:48:51,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:48:51,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:48:51,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:48:51" (1/1) ... [2020-07-07 11:48:51,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48437e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:51, skipping insertion in model container [2020-07-07 11:48:51,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:48:51" (1/1) ... [2020-07-07 11:48:51,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:48:52,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:48:53,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:48:53,425 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:48:54,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:48:54,491 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:48:54,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54 WrapperNode [2020-07-07 11:48:54,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:48:54,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:48:54,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:48:54,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:48:54,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (1/1) ... [2020-07-07 11:48:54,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (1/1) ... [2020-07-07 11:48:54,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (1/1) ... [2020-07-07 11:48:54,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (1/1) ... [2020-07-07 11:48:54,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (1/1) ... [2020-07-07 11:48:54,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (1/1) ... [2020-07-07 11:48:54,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (1/1) ... [2020-07-07 11:48:54,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:48:54,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:48:54,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:48:54,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:48:54,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (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 [2020-07-07 11:48:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:48:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:48:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 11:48:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:48:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:48:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 11:48:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-07-07 11:48:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-07 11:48:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-07-07 11:48:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:48:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 11:48:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-07-07 11:48:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-07-07 11:48:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-07-07 11:48:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-07-07 11:48:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-07-07 11:48:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-07-07 11:48:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-07 11:48:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-07 11:48:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:48:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:48:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:48:57,692 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:48:57,693 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 11:48:57,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:48:57 BoogieIcfgContainer [2020-07-07 11:48:57,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:48:57,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:48:57,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:48:57,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:48:57,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:48:51" (1/3) ... [2020-07-07 11:48:57,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71346337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:48:57, skipping insertion in model container [2020-07-07 11:48:57,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:48:54" (2/3) ... [2020-07-07 11:48:57,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71346337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:48:57, skipping insertion in model container [2020-07-07 11:48:57,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:48:57" (3/3) ... [2020-07-07 11:48:57,712 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-07 11:48:57,726 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:48:57,735 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-07-07 11:48:57,755 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-07-07 11:48:57,787 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:48:57,788 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:48:57,788 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:48:57,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:48:57,788 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:48:57,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:48:57,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:48:57,789 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:48:57,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states. [2020-07-07 11:48:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-07 11:48:57,864 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:48:57,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:48:57,866 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:48:57,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:48:57,875 INFO L82 PathProgramCache]: Analyzing trace with hash -537993708, now seen corresponding path program 1 times [2020-07-07 11:48:57,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:48:57,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40159815] [2020-07-07 11:48:57,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:48:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:48:59,810 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:48:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:49:00,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40159815] [2020-07-07 11:49:00,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:49:00,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:49:00,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886654068] [2020-07-07 11:49:00,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:49:00,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:49:00,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:49:00,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:49:00,213 INFO L87 Difference]: Start difference. First operand 1027 states. Second operand 4 states. [2020-07-07 11:49:00,972 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-07 11:49:08,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:49:08,726 INFO L93 Difference]: Finished difference Result 1794 states and 3183 transitions. [2020-07-07 11:49:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:49:08,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-07 11:49:08,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:49:08,759 INFO L225 Difference]: With dead ends: 1794 [2020-07-07 11:49:08,759 INFO L226 Difference]: Without dead ends: 1483 [2020-07-07 11:49:08,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:49:08,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-07-07 11:49:08,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1481. [2020-07-07 11:49:08,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2020-07-07 11:49:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2263 transitions. [2020-07-07 11:49:08,917 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2263 transitions. Word has length 327 [2020-07-07 11:49:08,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:49:08,919 INFO L479 AbstractCegarLoop]: Abstraction has 1481 states and 2263 transitions. [2020-07-07 11:49:08,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:49:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2263 transitions. [2020-07-07 11:49:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-07 11:49:08,925 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:49:08,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:49:08,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:49:08,927 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:49:08,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:49:08,927 INFO L82 PathProgramCache]: Analyzing trace with hash 297127498, now seen corresponding path program 1 times [2020-07-07 11:49:08,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:49:08,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263897689] [2020-07-07 11:49:08,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:49:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:09,927 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:49:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:49:10,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263897689] [2020-07-07 11:49:10,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:49:10,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:49:10,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711847667] [2020-07-07 11:49:10,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:49:10,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:49:10,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:49:10,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:49:10,211 INFO L87 Difference]: Start difference. First operand 1481 states and 2263 transitions. Second operand 4 states. [2020-07-07 11:49:11,096 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-07 11:49:17,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:49:17,757 INFO L93 Difference]: Finished difference Result 2844 states and 4401 transitions. [2020-07-07 11:49:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:49:17,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-07 11:49:17,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:49:17,782 INFO L225 Difference]: With dead ends: 2844 [2020-07-07 11:49:17,783 INFO L226 Difference]: Without dead ends: 2425 [2020-07-07 11:49:17,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:49:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2020-07-07 11:49:17,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2423. [2020-07-07 11:49:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-07 11:49:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3727 transitions. [2020-07-07 11:49:17,924 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3727 transitions. Word has length 327 [2020-07-07 11:49:17,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:49:17,927 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3727 transitions. [2020-07-07 11:49:17,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:49:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3727 transitions. [2020-07-07 11:49:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-07 11:49:17,938 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:49:17,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:49:17,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:49:17,949 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:49:17,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:49:17,950 INFO L82 PathProgramCache]: Analyzing trace with hash -586459585, now seen corresponding path program 1 times [2020-07-07 11:49:17,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:49:17,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204597452] [2020-07-07 11:49:17,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:49:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:19,368 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:49:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:19,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:49:19,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204597452] [2020-07-07 11:49:19,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:49:19,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:49:19,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396848674] [2020-07-07 11:49:19,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:49:19,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:49:19,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:49:19,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:49:19,541 INFO L87 Difference]: Start difference. First operand 2423 states and 3727 transitions. Second operand 4 states. [2020-07-07 11:49:20,129 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-07 11:49:26,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:49:26,187 INFO L93 Difference]: Finished difference Result 5038 states and 7854 transitions. [2020-07-07 11:49:26,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:49:26,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-07 11:49:26,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:49:26,210 INFO L225 Difference]: With dead ends: 5038 [2020-07-07 11:49:26,210 INFO L226 Difference]: Without dead ends: 4361 [2020-07-07 11:49:26,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:49:26,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2020-07-07 11:49:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4359. [2020-07-07 11:49:26,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2020-07-07 11:49:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 6733 transitions. [2020-07-07 11:49:26,344 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 6733 transitions. Word has length 327 [2020-07-07 11:49:26,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:49:26,345 INFO L479 AbstractCegarLoop]: Abstraction has 4359 states and 6733 transitions. [2020-07-07 11:49:26,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:49:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 6733 transitions. [2020-07-07 11:49:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-07 11:49:26,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:49:26,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:49:26,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:49:26,358 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:49:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:49:26,359 INFO L82 PathProgramCache]: Analyzing trace with hash -586798209, now seen corresponding path program 1 times [2020-07-07 11:49:26,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:49:26,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725884688] [2020-07-07 11:49:26,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:49:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:27,666 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:49:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:49:27,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725884688] [2020-07-07 11:49:27,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:49:27,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:49:27,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732810667] [2020-07-07 11:49:27,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:49:27,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:49:27,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:49:27,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:49:27,898 INFO L87 Difference]: Start difference. First operand 4359 states and 6733 transitions. Second operand 5 states. [2020-07-07 11:49:36,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:49:36,969 INFO L93 Difference]: Finished difference Result 12898 states and 19904 transitions. [2020-07-07 11:49:36,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:49:36,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-07-07 11:49:36,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:49:37,009 INFO L225 Difference]: With dead ends: 12898 [2020-07-07 11:49:37,009 INFO L226 Difference]: Without dead ends: 8554 [2020-07-07 11:49:37,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:49:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2020-07-07 11:49:37,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 8347. [2020-07-07 11:49:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8347 states. [2020-07-07 11:49:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8347 states to 8347 states and 12864 transitions. [2020-07-07 11:49:37,266 INFO L78 Accepts]: Start accepts. Automaton has 8347 states and 12864 transitions. Word has length 327 [2020-07-07 11:49:37,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:49:37,267 INFO L479 AbstractCegarLoop]: Abstraction has 8347 states and 12864 transitions. [2020-07-07 11:49:37,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:49:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8347 states and 12864 transitions. [2020-07-07 11:49:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-07-07 11:49:37,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:49:37,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:49:37,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:49:37,284 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:49:37,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:49:37,286 INFO L82 PathProgramCache]: Analyzing trace with hash 318218777, now seen corresponding path program 1 times [2020-07-07 11:49:37,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:49:37,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833586858] [2020-07-07 11:49:37,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:49:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:37,998 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:49:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:49:38,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833586858] [2020-07-07 11:49:38,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:49:38,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:49:38,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395647389] [2020-07-07 11:49:38,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:49:38,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:49:38,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:49:38,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:49:38,135 INFO L87 Difference]: Start difference. First operand 8347 states and 12864 transitions. Second operand 4 states. [2020-07-07 11:49:48,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:49:48,428 INFO L93 Difference]: Finished difference Result 24596 states and 37840 transitions. [2020-07-07 11:49:48,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:49:48,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-07-07 11:49:48,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:49:48,485 INFO L225 Difference]: With dead ends: 24596 [2020-07-07 11:49:48,485 INFO L226 Difference]: Without dead ends: 16378 [2020-07-07 11:49:48,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:49:48,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16378 states. [2020-07-07 11:49:49,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16378 to 16171. [2020-07-07 11:49:49,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2020-07-07 11:49:49,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 24823 transitions. [2020-07-07 11:49:49,095 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 24823 transitions. Word has length 329 [2020-07-07 11:49:49,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:49:49,096 INFO L479 AbstractCegarLoop]: Abstraction has 16171 states and 24823 transitions. [2020-07-07 11:49:49,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:49:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 24823 transitions. [2020-07-07 11:49:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-07-07 11:49:49,131 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:49:49,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:49:49,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 11:49:49,132 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:49:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:49:49,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1871319948, now seen corresponding path program 1 times [2020-07-07 11:49:49,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:49:49,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405841356] [2020-07-07 11:49:49,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:49:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:49,778 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:49:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:49:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:49:49,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405841356] [2020-07-07 11:49:49,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:49:49,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:49:49,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904894562] [2020-07-07 11:49:49,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:49:49,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:49:49,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:49:49,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:49:49,911 INFO L87 Difference]: Start difference. First operand 16171 states and 24823 transitions. Second operand 4 states. [2020-07-07 11:50:01,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:50:01,379 INFO L93 Difference]: Finished difference Result 48438 states and 74345 transitions. [2020-07-07 11:50:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:50:01,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-07-07 11:50:01,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:50:01,442 INFO L225 Difference]: With dead ends: 48438 [2020-07-07 11:50:01,443 INFO L226 Difference]: Without dead ends: 32309 [2020-07-07 11:50:01,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:50:01,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32309 states. [2020-07-07 11:50:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32309 to 16190. [2020-07-07 11:50:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16190 states. [2020-07-07 11:50:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16190 states to 16190 states and 24851 transitions. [2020-07-07 11:50:02,236 INFO L78 Accepts]: Start accepts. Automaton has 16190 states and 24851 transitions. Word has length 329 [2020-07-07 11:50:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:50:02,237 INFO L479 AbstractCegarLoop]: Abstraction has 16190 states and 24851 transitions. [2020-07-07 11:50:02,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:50:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 16190 states and 24851 transitions. [2020-07-07 11:50:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-07 11:50:02,259 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:50:02,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:50:02,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 11:50:02,259 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:50:02,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:50:02,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1567258959, now seen corresponding path program 1 times [2020-07-07 11:50:02,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:50:02,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444696553] [2020-07-07 11:50:02,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:50:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:02,905 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:50:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:03,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:50:03,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444696553] [2020-07-07 11:50:03,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:50:03,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:50:03,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146518140] [2020-07-07 11:50:03,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:50:03,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:50:03,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:50:03,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:50:03,068 INFO L87 Difference]: Start difference. First operand 16190 states and 24851 transitions. Second operand 4 states. [2020-07-07 11:50:15,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:50:15,011 INFO L93 Difference]: Finished difference Result 48457 states and 74366 transitions. [2020-07-07 11:50:15,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:50:15,013 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-07 11:50:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:50:15,064 INFO L225 Difference]: With dead ends: 48457 [2020-07-07 11:50:15,065 INFO L226 Difference]: Without dead ends: 32327 [2020-07-07 11:50:15,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:50:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32327 states. [2020-07-07 11:50:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32327 to 16208. [2020-07-07 11:50:15,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16208 states. [2020-07-07 11:50:15,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16208 states to 16208 states and 24872 transitions. [2020-07-07 11:50:15,674 INFO L78 Accepts]: Start accepts. Automaton has 16208 states and 24872 transitions. Word has length 330 [2020-07-07 11:50:15,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:50:15,674 INFO L479 AbstractCegarLoop]: Abstraction has 16208 states and 24872 transitions. [2020-07-07 11:50:15,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:50:15,675 INFO L276 IsEmpty]: Start isEmpty. Operand 16208 states and 24872 transitions. [2020-07-07 11:50:15,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-07-07 11:50:15,695 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:50:15,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:50:15,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 11:50:15,696 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:50:15,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:50:15,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1372001314, now seen corresponding path program 1 times [2020-07-07 11:50:15,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:50:15,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299541028] [2020-07-07 11:50:15,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:50:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:16,389 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:50:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:50:16,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299541028] [2020-07-07 11:50:16,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:50:16,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:50:16,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956433385] [2020-07-07 11:50:16,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:50:16,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:50:16,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:50:16,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:50:16,724 INFO L87 Difference]: Start difference. First operand 16208 states and 24872 transitions. Second operand 4 states. [2020-07-07 11:50:27,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:50:27,795 INFO L93 Difference]: Finished difference Result 47657 states and 72993 transitions. [2020-07-07 11:50:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:50:27,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2020-07-07 11:50:27,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:50:27,847 INFO L225 Difference]: With dead ends: 47657 [2020-07-07 11:50:27,848 INFO L226 Difference]: Without dead ends: 31694 [2020-07-07 11:50:27,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:50:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31694 states. [2020-07-07 11:50:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31694 to 31487. [2020-07-07 11:50:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31487 states. [2020-07-07 11:50:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31487 states to 31487 states and 48052 transitions. [2020-07-07 11:50:28,917 INFO L78 Accepts]: Start accepts. Automaton has 31487 states and 48052 transitions. Word has length 331 [2020-07-07 11:50:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:50:28,917 INFO L479 AbstractCegarLoop]: Abstraction has 31487 states and 48052 transitions. [2020-07-07 11:50:28,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:50:28,917 INFO L276 IsEmpty]: Start isEmpty. Operand 31487 states and 48052 transitions. [2020-07-07 11:50:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-07-07 11:50:28,943 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:50:28,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:50:28,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 11:50:28,944 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:50:28,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:50:28,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1276054559, now seen corresponding path program 1 times [2020-07-07 11:50:28,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:50:28,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829098903] [2020-07-07 11:50:28,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:50:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:30,003 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:50:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:50:30,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829098903] [2020-07-07 11:50:30,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:50:30,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:50:30,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204984599] [2020-07-07 11:50:30,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:50:30,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:50:30,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:50:30,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:50:30,117 INFO L87 Difference]: Start difference. First operand 31487 states and 48052 transitions. Second operand 5 states. [2020-07-07 11:50:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:50:38,360 INFO L93 Difference]: Finished difference Result 64556 states and 98457 transitions. [2020-07-07 11:50:38,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:50:38,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-07-07 11:50:38,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:50:38,396 INFO L225 Difference]: With dead ends: 64556 [2020-07-07 11:50:38,396 INFO L226 Difference]: Without dead ends: 32561 [2020-07-07 11:50:38,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:50:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32561 states. [2020-07-07 11:50:39,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32561 to 32354. [2020-07-07 11:50:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32354 states. [2020-07-07 11:50:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32354 states to 32354 states and 49170 transitions. [2020-07-07 11:50:39,572 INFO L78 Accepts]: Start accepts. Automaton has 32354 states and 49170 transitions. Word has length 331 [2020-07-07 11:50:39,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:50:39,573 INFO L479 AbstractCegarLoop]: Abstraction has 32354 states and 49170 transitions. [2020-07-07 11:50:39,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:50:39,573 INFO L276 IsEmpty]: Start isEmpty. Operand 32354 states and 49170 transitions. [2020-07-07 11:50:39,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-07 11:50:39,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:50:39,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:50:39,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 11:50:39,593 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:50:39,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:50:39,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1240087947, now seen corresponding path program 1 times [2020-07-07 11:50:39,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:50:39,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036408081] [2020-07-07 11:50:39,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:50:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:40,344 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:50:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:50:40,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036408081] [2020-07-07 11:50:40,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:50:40,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:50:40,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761772106] [2020-07-07 11:50:40,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:50:40,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:50:40,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:50:40,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:50:40,447 INFO L87 Difference]: Start difference. First operand 32354 states and 49170 transitions. Second operand 4 states. [2020-07-07 11:50:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:50:48,385 INFO L93 Difference]: Finished difference Result 96190 states and 146033 transitions. [2020-07-07 11:50:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:50:48,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-07 11:50:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:50:48,442 INFO L225 Difference]: With dead ends: 96190 [2020-07-07 11:50:48,442 INFO L226 Difference]: Without dead ends: 64289 [2020-07-07 11:50:48,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:50:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64289 states. [2020-07-07 11:50:49,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64289 to 32412. [2020-07-07 11:50:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32412 states. [2020-07-07 11:50:49,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32412 states to 32412 states and 49245 transitions. [2020-07-07 11:50:49,638 INFO L78 Accepts]: Start accepts. Automaton has 32412 states and 49245 transitions. Word has length 333 [2020-07-07 11:50:49,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:50:49,638 INFO L479 AbstractCegarLoop]: Abstraction has 32412 states and 49245 transitions. [2020-07-07 11:50:49,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:50:49,638 INFO L276 IsEmpty]: Start isEmpty. Operand 32412 states and 49245 transitions. [2020-07-07 11:50:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-07 11:50:49,662 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:50:49,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:50:49,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 11:50:49,663 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:50:49,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:50:49,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1927314311, now seen corresponding path program 1 times [2020-07-07 11:50:49,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:50:49,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428643533] [2020-07-07 11:50:49,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:50:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:50,722 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:50:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:50:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:50:51,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428643533] [2020-07-07 11:50:51,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:50:51,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:50:51,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087971671] [2020-07-07 11:50:51,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:50:51,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:50:51,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:50:51,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:50:51,095 INFO L87 Difference]: Start difference. First operand 32412 states and 49245 transitions. Second operand 5 states. [2020-07-07 11:51:08,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:51:08,660 INFO L93 Difference]: Finished difference Result 119792 states and 181623 transitions. [2020-07-07 11:51:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:51:08,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2020-07-07 11:51:08,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:51:08,741 INFO L225 Difference]: With dead ends: 119792 [2020-07-07 11:51:08,741 INFO L226 Difference]: Without dead ends: 88207 [2020-07-07 11:51:08,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:51:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88207 states. [2020-07-07 11:51:10,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88207 to 32661. [2020-07-07 11:51:10,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32661 states. [2020-07-07 11:51:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32661 states to 32661 states and 49637 transitions. [2020-07-07 11:51:10,250 INFO L78 Accepts]: Start accepts. Automaton has 32661 states and 49637 transitions. Word has length 333 [2020-07-07 11:51:10,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:51:10,250 INFO L479 AbstractCegarLoop]: Abstraction has 32661 states and 49637 transitions. [2020-07-07 11:51:10,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:51:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 32661 states and 49637 transitions. [2020-07-07 11:51:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-07 11:51:10,282 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:51:10,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:51:10,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 11:51:10,283 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:51:10,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:51:10,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1238335886, now seen corresponding path program 1 times [2020-07-07 11:51:10,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:51:10,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720882758] [2020-07-07 11:51:10,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:51:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:51:11,386 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:51:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:51:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:51:11,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720882758] [2020-07-07 11:51:11,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:51:11,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:51:11,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82821398] [2020-07-07 11:51:11,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:51:11,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:51:11,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:51:11,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:51:11,475 INFO L87 Difference]: Start difference. First operand 32661 states and 49637 transitions. Second operand 4 states. [2020-07-07 11:51:21,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:51:21,300 INFO L93 Difference]: Finished difference Result 81798 states and 125255 transitions. [2020-07-07 11:51:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:51:21,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-07 11:51:21,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:51:21,356 INFO L225 Difference]: With dead ends: 81798 [2020-07-07 11:51:21,356 INFO L226 Difference]: Without dead ends: 51671 [2020-07-07 11:51:21,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:51:21,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51671 states. [2020-07-07 11:51:23,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51671 to 40853. [2020-07-07 11:51:23,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40853 states. [2020-07-07 11:51:23,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40853 states to 40853 states and 63079 transitions. [2020-07-07 11:51:23,296 INFO L78 Accepts]: Start accepts. Automaton has 40853 states and 63079 transitions. Word has length 333 [2020-07-07 11:51:23,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:51:23,297 INFO L479 AbstractCegarLoop]: Abstraction has 40853 states and 63079 transitions. [2020-07-07 11:51:23,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:51:23,297 INFO L276 IsEmpty]: Start isEmpty. Operand 40853 states and 63079 transitions. [2020-07-07 11:51:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-07 11:51:23,316 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:51:23,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:51:23,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 11:51:23,323 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:51:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:51:23,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1655619516, now seen corresponding path program 1 times [2020-07-07 11:51:23,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:51:23,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312001210] [2020-07-07 11:51:23,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:51:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:51:24,226 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:51:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:51:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:51:24,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312001210] [2020-07-07 11:51:24,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:51:24,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:51:24,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584945378] [2020-07-07 11:51:24,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:51:24,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:51:24,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:51:24,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:51:24,340 INFO L87 Difference]: Start difference. First operand 40853 states and 63079 transitions. Second operand 4 states. [2020-07-07 11:51:34,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:51:34,996 INFO L93 Difference]: Finished difference Result 102490 states and 159469 transitions. [2020-07-07 11:51:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:51:34,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2020-07-07 11:51:34,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:51:35,064 INFO L225 Difference]: With dead ends: 102490 [2020-07-07 11:51:35,064 INFO L226 Difference]: Without dead ends: 64639 [2020-07-07 11:51:35,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:51:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64639 states. [2020-07-07 11:51:37,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64639 to 55509. [2020-07-07 11:51:37,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55509 states. [2020-07-07 11:51:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55509 states to 55509 states and 86991 transitions. [2020-07-07 11:51:37,740 INFO L78 Accepts]: Start accepts. Automaton has 55509 states and 86991 transitions. Word has length 335 [2020-07-07 11:51:37,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:51:37,741 INFO L479 AbstractCegarLoop]: Abstraction has 55509 states and 86991 transitions. [2020-07-07 11:51:37,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:51:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 55509 states and 86991 transitions. [2020-07-07 11:51:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-07 11:51:37,760 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:51:37,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:51:37,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 11:51:37,761 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:51:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:51:37,761 INFO L82 PathProgramCache]: Analyzing trace with hash -846909920, now seen corresponding path program 1 times [2020-07-07 11:51:37,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:51:37,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198874333] [2020-07-07 11:51:37,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:51:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:51:38,424 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:51:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:51:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:51:38,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198874333] [2020-07-07 11:51:38,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:51:38,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:51:38,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442758217] [2020-07-07 11:51:38,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:51:38,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:51:38,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:51:38,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:51:38,496 INFO L87 Difference]: Start difference. First operand 55509 states and 86991 transitions. Second operand 4 states. [2020-07-07 11:51:56,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:51:56,269 INFO L93 Difference]: Finished difference Result 164121 states and 256973 transitions. [2020-07-07 11:51:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:51:56,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2020-07-07 11:51:56,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:51:56,388 INFO L225 Difference]: With dead ends: 164121 [2020-07-07 11:51:56,389 INFO L226 Difference]: Without dead ends: 109760 [2020-07-07 11:51:56,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:51:56,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109760 states. [2020-07-07 11:51:59,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109760 to 55607. [2020-07-07 11:51:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55607 states. [2020-07-07 11:51:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55607 states to 55607 states and 87127 transitions. [2020-07-07 11:51:59,494 INFO L78 Accepts]: Start accepts. Automaton has 55607 states and 87127 transitions. Word has length 335 [2020-07-07 11:51:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:51:59,494 INFO L479 AbstractCegarLoop]: Abstraction has 55607 states and 87127 transitions. [2020-07-07 11:51:59,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:51:59,495 INFO L276 IsEmpty]: Start isEmpty. Operand 55607 states and 87127 transitions. [2020-07-07 11:51:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-07 11:51:59,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:51:59,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:51:59,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 11:51:59,514 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:51:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:51:59,514 INFO L82 PathProgramCache]: Analyzing trace with hash -2051963875, now seen corresponding path program 1 times [2020-07-07 11:51:59,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:51:59,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835421816] [2020-07-07 11:51:59,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:51:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:52:00,160 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:52:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:52:00,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:52:00,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835421816] [2020-07-07 11:52:00,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:52:00,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:52:00,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414870322] [2020-07-07 11:52:00,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:52:00,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:52:00,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:52:00,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:52:00,290 INFO L87 Difference]: Start difference. First operand 55607 states and 87127 transitions. Second operand 4 states. [2020-07-07 11:52:18,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:52:18,236 INFO L93 Difference]: Finished difference Result 164377 states and 257303 transitions. [2020-07-07 11:52:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:52:18,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 336 [2020-07-07 11:52:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:52:18,359 INFO L225 Difference]: With dead ends: 164377 [2020-07-07 11:52:18,359 INFO L226 Difference]: Without dead ends: 110016 [2020-07-07 11:52:18,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:52:18,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110016 states. [2020-07-07 11:52:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110016 to 55715. [2020-07-07 11:52:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55715 states. [2020-07-07 11:52:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55715 states to 55715 states and 87239 transitions. [2020-07-07 11:52:21,692 INFO L78 Accepts]: Start accepts. Automaton has 55715 states and 87239 transitions. Word has length 336 [2020-07-07 11:52:21,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:52:21,692 INFO L479 AbstractCegarLoop]: Abstraction has 55715 states and 87239 transitions. [2020-07-07 11:52:21,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:52:21,692 INFO L276 IsEmpty]: Start isEmpty. Operand 55715 states and 87239 transitions. [2020-07-07 11:52:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-07 11:52:21,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:52:21,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:52:21,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 11:52:21,712 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:52:21,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:52:21,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1325903080, now seen corresponding path program 1 times [2020-07-07 11:52:21,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:52:21,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982005075] [2020-07-07 11:52:21,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:52:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:52:22,563 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:52:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:52:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:52:22,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982005075] [2020-07-07 11:52:22,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:52:22,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:52:22,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276381763] [2020-07-07 11:52:22,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:52:22,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:52:22,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:52:22,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:52:22,948 INFO L87 Difference]: Start difference. First operand 55715 states and 87239 transitions. Second operand 6 states. [2020-07-07 11:52:23,580 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-07-07 11:52:34,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:52:34,365 INFO L93 Difference]: Finished difference Result 108714 states and 170358 transitions. [2020-07-07 11:52:34,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:52:34,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 336 [2020-07-07 11:52:34,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:52:34,438 INFO L225 Difference]: With dead ends: 108714 [2020-07-07 11:52:34,438 INFO L226 Difference]: Without dead ends: 55715 [2020-07-07 11:52:34,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:52:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55715 states. [2020-07-07 11:52:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55715 to 55715. [2020-07-07 11:52:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55715 states. [2020-07-07 11:52:37,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55715 states to 55715 states and 86569 transitions. [2020-07-07 11:52:37,719 INFO L78 Accepts]: Start accepts. Automaton has 55715 states and 86569 transitions. Word has length 336 [2020-07-07 11:52:37,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:52:37,719 INFO L479 AbstractCegarLoop]: Abstraction has 55715 states and 86569 transitions. [2020-07-07 11:52:37,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:52:37,719 INFO L276 IsEmpty]: Start isEmpty. Operand 55715 states and 86569 transitions. [2020-07-07 11:52:37,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-07 11:52:37,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:52:37,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:52:37,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 11:52:37,966 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:52:37,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:52:37,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1613957357, now seen corresponding path program 1 times [2020-07-07 11:52:37,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:52:37,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610526283] [2020-07-07 11:52:37,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:52:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:52:39,062 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:52:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:52:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:52:39,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610526283] [2020-07-07 11:52:39,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:52:39,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 11:52:39,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913586795] [2020-07-07 11:52:39,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 11:52:39,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:52:39,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 11:52:39,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:52:39,233 INFO L87 Difference]: Start difference. First operand 55715 states and 86569 transitions. Second operand 10 states. [2020-07-07 11:52:39,849 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-07-07 11:52:58,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:52:58,004 INFO L93 Difference]: Finished difference Result 164828 states and 256932 transitions. [2020-07-07 11:52:58,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 11:52:58,005 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 336 [2020-07-07 11:52:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:52:58,233 INFO L225 Difference]: With dead ends: 164828 [2020-07-07 11:52:58,234 INFO L226 Difference]: Without dead ends: 112045 [2020-07-07 11:52:58,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-07-07 11:52:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112045 states. [2020-07-07 11:53:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112045 to 72683. [2020-07-07 11:53:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72683 states. [2020-07-07 11:53:05,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72683 states to 72683 states and 110493 transitions. [2020-07-07 11:53:05,901 INFO L78 Accepts]: Start accepts. Automaton has 72683 states and 110493 transitions. Word has length 336 [2020-07-07 11:53:05,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:53:05,902 INFO L479 AbstractCegarLoop]: Abstraction has 72683 states and 110493 transitions. [2020-07-07 11:53:05,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 11:53:05,902 INFO L276 IsEmpty]: Start isEmpty. Operand 72683 states and 110493 transitions. [2020-07-07 11:53:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-07 11:53:05,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:53:05,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:53:05,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-07 11:53:05,928 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:53:05,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:53:05,928 INFO L82 PathProgramCache]: Analyzing trace with hash -301490402, now seen corresponding path program 1 times [2020-07-07 11:53:05,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:53:05,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346078119] [2020-07-07 11:53:05,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:53:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:53:06,884 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:53:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:53:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:53:07,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346078119] [2020-07-07 11:53:07,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:53:07,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:53:07,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626574253] [2020-07-07 11:53:07,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:53:07,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:53:07,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:53:07,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:53:07,042 INFO L87 Difference]: Start difference. First operand 72683 states and 110493 transitions. Second operand 5 states. [2020-07-07 11:53:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:53:28,121 INFO L93 Difference]: Finished difference Result 214089 states and 325687 transitions. [2020-07-07 11:53:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:53:28,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2020-07-07 11:53:28,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:53:28,282 INFO L225 Difference]: With dead ends: 214089 [2020-07-07 11:53:28,283 INFO L226 Difference]: Without dead ends: 141748 [2020-07-07 11:53:28,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:53:28,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141748 states. [2020-07-07 11:53:41,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141748 to 141557. [2020-07-07 11:53:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141557 states. [2020-07-07 11:53:41,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141557 states to 141557 states and 214601 transitions. [2020-07-07 11:53:41,383 INFO L78 Accepts]: Start accepts. Automaton has 141557 states and 214601 transitions. Word has length 336 [2020-07-07 11:53:41,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:53:41,383 INFO L479 AbstractCegarLoop]: Abstraction has 141557 states and 214601 transitions. [2020-07-07 11:53:41,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:53:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 141557 states and 214601 transitions. [2020-07-07 11:53:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-07-07 11:53:41,437 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:53:41,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:53:41,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-07 11:53:41,438 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:53:41,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:53:41,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1521744755, now seen corresponding path program 1 times [2020-07-07 11:53:41,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:53:41,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575834620] [2020-07-07 11:53:41,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:53:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:53:42,383 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:53:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:53:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:53:42,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575834620] [2020-07-07 11:53:42,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:53:42,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:53:42,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013644260] [2020-07-07 11:53:42,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:53:42,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:53:42,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:53:42,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:53:42,458 INFO L87 Difference]: Start difference. First operand 141557 states and 214601 transitions. Second operand 5 states. [2020-07-07 11:54:04,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:54:04,476 INFO L93 Difference]: Finished difference Result 210385 states and 318804 transitions. [2020-07-07 11:54:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:54:04,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2020-07-07 11:54:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:54:04,644 INFO L225 Difference]: With dead ends: 210385 [2020-07-07 11:54:04,645 INFO L226 Difference]: Without dead ends: 141776 [2020-07-07 11:54:04,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:54:04,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141776 states. [2020-07-07 11:54:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141776 to 140007. [2020-07-07 11:54:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140007 states. [2020-07-07 11:54:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140007 states to 140007 states and 212348 transitions. [2020-07-07 11:54:18,091 INFO L78 Accepts]: Start accepts. Automaton has 140007 states and 212348 transitions. Word has length 337 [2020-07-07 11:54:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:54:18,091 INFO L479 AbstractCegarLoop]: Abstraction has 140007 states and 212348 transitions. [2020-07-07 11:54:18,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:54:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 140007 states and 212348 transitions. [2020-07-07 11:54:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-07-07 11:54:18,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:54:18,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:54:18,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-07 11:54:18,141 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:54:18,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:54:18,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1681776216, now seen corresponding path program 1 times [2020-07-07 11:54:18,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:54:18,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786553550] [2020-07-07 11:54:18,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:54:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:54:18,809 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:54:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:54:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:54:18,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786553550] [2020-07-07 11:54:18,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:54:18,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:54:18,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196078062] [2020-07-07 11:54:18,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:54:18,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:54:18,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:54:18,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:54:18,884 INFO L87 Difference]: Start difference. First operand 140007 states and 212348 transitions. Second operand 4 states. [2020-07-07 11:54:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:54:55,123 INFO L93 Difference]: Finished difference Result 418677 states and 634855 transitions. [2020-07-07 11:54:55,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:54:55,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2020-07-07 11:54:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:54:55,480 INFO L225 Difference]: With dead ends: 418677 [2020-07-07 11:54:55,481 INFO L226 Difference]: Without dead ends: 279360 [2020-07-07 11:54:55,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:54:55,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279360 states. [2020-07-07 11:55:12,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279360 to 140145. [2020-07-07 11:55:12,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140145 states. [2020-07-07 11:55:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140145 states to 140145 states and 212500 transitions. [2020-07-07 11:55:13,058 INFO L78 Accepts]: Start accepts. Automaton has 140145 states and 212500 transitions. Word has length 340 [2020-07-07 11:55:13,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:55:13,059 INFO L479 AbstractCegarLoop]: Abstraction has 140145 states and 212500 transitions. [2020-07-07 11:55:13,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:55:13,059 INFO L276 IsEmpty]: Start isEmpty. Operand 140145 states and 212500 transitions. [2020-07-07 11:55:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-07-07 11:55:13,108 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:55:13,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:55:13,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-07 11:55:13,109 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:55:13,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:55:13,110 INFO L82 PathProgramCache]: Analyzing trace with hash 19768850, now seen corresponding path program 1 times [2020-07-07 11:55:13,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:55:13,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477284212] [2020-07-07 11:55:13,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:55:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:55:13,859 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:55:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:55:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:55:13,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477284212] [2020-07-07 11:55:13,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:55:13,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:55:13,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018857867] [2020-07-07 11:55:13,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:55:13,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:55:13,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:55:13,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:55:13,978 INFO L87 Difference]: Start difference. First operand 140145 states and 212500 transitions. Second operand 4 states. [2020-07-07 11:55:50,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:55:50,266 INFO L93 Difference]: Finished difference Result 411893 states and 624614 transitions. [2020-07-07 11:55:50,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:55:50,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2020-07-07 11:55:50,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:55:51,057 INFO L225 Difference]: With dead ends: 411893 [2020-07-07 11:55:51,058 INFO L226 Difference]: Without dead ends: 273579 [2020-07-07 11:55:51,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:55:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273579 states. [2020-07-07 11:56:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273579 to 273396. [2020-07-07 11:56:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273396 states. [2020-07-07 11:56:19,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273396 states to 273396 states and 413005 transitions. [2020-07-07 11:56:19,407 INFO L78 Accepts]: Start accepts. Automaton has 273396 states and 413005 transitions. Word has length 340 [2020-07-07 11:56:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:56:19,407 INFO L479 AbstractCegarLoop]: Abstraction has 273396 states and 413005 transitions. [2020-07-07 11:56:19,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:56:19,407 INFO L276 IsEmpty]: Start isEmpty. Operand 273396 states and 413005 transitions. [2020-07-07 11:56:19,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-07-07 11:56:19,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:56:19,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:56:19,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-07 11:56:19,561 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:56:19,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:56:19,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1028603420, now seen corresponding path program 1 times [2020-07-07 11:56:19,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:56:19,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665945333] [2020-07-07 11:56:19,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:56:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:56:20,494 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:56:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:56:20,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:56:20,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665945333] [2020-07-07 11:56:20,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:56:20,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:56:20,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256786818] [2020-07-07 11:56:20,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:56:20,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:56:20,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:56:20,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:56:20,574 INFO L87 Difference]: Start difference. First operand 273396 states and 413005 transitions. Second operand 5 states. [2020-07-07 11:57:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:57:00,938 INFO L93 Difference]: Finished difference Result 552601 states and 834095 transitions. [2020-07-07 11:57:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:57:00,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-07-07 11:57:00,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:57:01,342 INFO L225 Difference]: With dead ends: 552601 [2020-07-07 11:57:01,342 INFO L226 Difference]: Without dead ends: 277360 [2020-07-07 11:57:01,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:57:01,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277360 states. [2020-07-07 11:57:32,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277360 to 277109. [2020-07-07 11:57:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277109 states. [2020-07-07 11:57:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277109 states to 277109 states and 416222 transitions. [2020-07-07 11:57:32,554 INFO L78 Accepts]: Start accepts. Automaton has 277109 states and 416222 transitions. Word has length 341 [2020-07-07 11:57:32,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:57:32,555 INFO L479 AbstractCegarLoop]: Abstraction has 277109 states and 416222 transitions. [2020-07-07 11:57:32,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:57:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 277109 states and 416222 transitions. [2020-07-07 11:57:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-07 11:57:32,665 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:57:32,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:57:32,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-07 11:57:32,666 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:57:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:57:32,667 INFO L82 PathProgramCache]: Analyzing trace with hash 39063962, now seen corresponding path program 1 times [2020-07-07 11:57:32,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:57:32,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370936986] [2020-07-07 11:57:32,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:57:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:57:33,398 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:57:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:57:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:57:33,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370936986] [2020-07-07 11:57:33,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:57:33,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:57:33,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59400064] [2020-07-07 11:57:33,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:57:33,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:57:33,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:57:33,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:57:33,506 INFO L87 Difference]: Start difference. First operand 277109 states and 416222 transitions. Second operand 4 states. [2020-07-07 11:58:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:58:47,188 INFO L93 Difference]: Finished difference Result 803777 states and 1206515 transitions. [2020-07-07 11:58:47,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:58:47,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 342 [2020-07-07 11:58:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:58:48,591 INFO L225 Difference]: With dead ends: 803777 [2020-07-07 11:58:48,591 INFO L226 Difference]: Without dead ends: 528345 [2020-07-07 11:58:48,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:58:49,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528345 states. [2020-07-07 11:59:51,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528345 to 528234. [2020-07-07 11:59:51,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528234 states. [2020-07-07 11:59:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528234 states to 528234 states and 788166 transitions. [2020-07-07 11:59:52,088 INFO L78 Accepts]: Start accepts. Automaton has 528234 states and 788166 transitions. Word has length 342 [2020-07-07 11:59:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:59:52,088 INFO L479 AbstractCegarLoop]: Abstraction has 528234 states and 788166 transitions. [2020-07-07 11:59:52,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:59:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 528234 states and 788166 transitions. [2020-07-07 11:59:52,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-07 11:59:52,310 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:59:52,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:59:52,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-07 11:59:52,310 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:59:52,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:59:52,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2088068717, now seen corresponding path program 1 times [2020-07-07 11:59:52,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:59:52,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898670511] [2020-07-07 11:59:52,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:59:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:59:53,169 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-07 11:59:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:59:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:59:53,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898670511] [2020-07-07 11:59:53,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:59:53,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:59:53,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050896316] [2020-07-07 11:59:53,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:59:53,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:59:53,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:59:53,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:59:53,299 INFO L87 Difference]: Start difference. First operand 528234 states and 788166 transitions. Second operand 4 states.