/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:34:26,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:34:26,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:34:26,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:34:26,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:34:26,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:34:26,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:34:26,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:34:26,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:34:26,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:34:26,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:34:26,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:34:26,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:34:26,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:34:26,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:34:26,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:34:26,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:34:26,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:34:26,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:34:26,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:34:26,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:34:26,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:34:26,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:34:26,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:34:26,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:34:26,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:34:26,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:34:26,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:34:26,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:34:26,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:34:26,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:34:26,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:34:26,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:34:26,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:34:26,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:34:26,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:34:26,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:34:26,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:34:26,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:34:26,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:34:26,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:34:26,505 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 [2020-04-17 18:34:26,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:34:26,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:34:26,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:34:26,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:34:26,521 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:34:26,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:34:26,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:34:26,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:34:26,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:34:26,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:34:26,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:34:26,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:34:26,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:34:26,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:34:26,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:34:26,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:34:26,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:34:26,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:34:26,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:34:26,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:34:26,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:34:26,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:34:26,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:34:26,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:34:26,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:34:26,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:34:26,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:34:26,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:34:26,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 18:34:26,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:34:26,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:34:26,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:34:26,840 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:34:26,841 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:34:26,842 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:34:26,843 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i [2020-04-17 18:34:26,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3adb00e93/80dcc572acd14e709c96c217c3ee6f38/FLAGc0b964758 [2020-04-17 18:34:27,501 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:34:27,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i [2020-04-17 18:34:27,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3adb00e93/80dcc572acd14e709c96c217c3ee6f38/FLAGc0b964758 [2020-04-17 18:34:27,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3adb00e93/80dcc572acd14e709c96c217c3ee6f38 [2020-04-17 18:34:27,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:34:27,865 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:34:27,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:34:27,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:34:27,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:34:27,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:34:27" (1/1) ... [2020-04-17 18:34:27,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311b5600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:27, skipping insertion in model container [2020-04-17 18:34:27,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:34:27" (1/1) ... [2020-04-17 18:34:27,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:34:27,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:34:28,117 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-04-17 18:34:28,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:34:28,562 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:34:28,581 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-04-17 18:34:28,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:34:28,795 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:34:28,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28 WrapperNode [2020-04-17 18:34:28,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:34:28,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:34:28,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:34:28,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:34:28,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:34:28,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:34:28,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:34:28,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:34:28,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (1/1) ... [2020-04-17 18:34:28,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:34:28,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:34:28,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:34:28,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:34:28,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (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 [2020-04-17 18:34:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2020-04-17 18:34:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2020-04-17 18:34:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2020-04-17 18:34:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2020-04-17 18:34:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:34:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:34:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 18:34:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:34:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-17 18:34:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:34:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:34:28,983 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:34:29,720 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:34:29,721 INFO L295 CfgBuilder]: Removed 22 assume(true) statements. [2020-04-17 18:34:29,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:34:29 BoogieIcfgContainer [2020-04-17 18:34:29,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:34:29,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:34:29,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:34:29,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:34:29,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:34:27" (1/3) ... [2020-04-17 18:34:29,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f5300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:34:29, skipping insertion in model container [2020-04-17 18:34:29,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:34:28" (2/3) ... [2020-04-17 18:34:29,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f5300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:34:29, skipping insertion in model container [2020-04-17 18:34:29,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:34:29" (3/3) ... [2020-04-17 18:34:29,739 INFO L109 eAbstractionObserver]: Analyzing ICFG ring_2w1r-2.i [2020-04-17 18:34:29,751 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:34:29,751 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:34:29,761 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-04-17 18:34:29,762 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:34:29,813 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,813 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,814 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,814 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,814 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,815 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,815 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,815 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,815 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,815 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,816 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,816 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,816 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,816 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,816 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,816 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,817 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,817 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,817 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,817 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,817 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,818 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,818 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,818 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,818 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,818 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,819 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,819 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,819 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,819 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,820 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,820 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,820 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,820 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,820 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,821 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,821 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,821 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,821 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,821 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,822 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,822 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,822 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,822 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,822 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,823 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,823 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,823 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,823 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,823 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,823 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,824 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,824 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,824 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,824 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,825 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,825 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,825 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,825 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,825 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,826 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,826 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,826 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,826 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,827 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,827 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,827 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,827 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,827 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,827 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,828 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,828 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,828 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,828 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,828 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,829 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,829 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,829 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,829 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,829 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,830 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,830 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,830 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,830 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,830 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,831 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,831 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,831 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,831 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,831 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,831 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,832 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,832 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,832 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,832 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,832 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,833 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,833 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,833 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,833 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,833 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,834 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,834 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,834 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,834 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,835 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,835 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,835 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,835 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,836 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,836 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,836 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,836 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,836 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,837 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,837 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,837 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,837 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,837 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,837 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,838 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,838 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,838 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,838 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,838 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,839 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,839 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,839 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,839 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,839 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,839 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,840 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,840 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,840 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,840 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,840 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,841 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,841 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,841 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,841 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,841 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,842 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,842 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,842 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,842 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,843 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,843 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,843 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,843 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,843 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,843 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,844 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,844 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,844 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,844 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,845 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,845 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,845 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,845 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,845 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,846 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,846 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,846 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,846 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,846 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,847 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,847 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,847 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,847 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,847 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,847 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,848 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,848 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,848 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,848 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,848 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,848 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,849 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,849 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,849 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,849 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,849 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,850 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,850 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,850 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,850 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,850 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,851 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,851 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,851 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,851 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,851 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,852 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,852 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,852 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,852 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,852 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,852 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,853 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,853 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,853 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,853 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,853 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,854 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,854 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,854 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,854 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,854 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,854 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,855 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,855 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,855 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,855 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,855 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,856 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,856 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,856 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,859 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,860 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,860 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,860 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,860 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,861 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,861 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,861 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,861 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,861 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,862 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,862 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,862 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,862 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,862 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,863 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,863 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,863 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,869 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,869 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,869 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,869 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,870 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,870 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,870 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,870 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,870 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,871 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,871 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,871 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,871 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,871 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,872 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,872 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,872 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,872 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,872 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,873 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,873 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,873 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,873 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,873 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,874 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,874 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,874 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,874 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,874 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,875 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,875 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,875 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,875 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,875 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,876 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:34:29,896 INFO L251 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-04-17 18:34:29,917 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:34:29,918 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:34:29,918 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:34:29,918 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:34:29,918 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:34:29,918 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:34:29,918 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:34:29,918 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:34:29,937 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 189 transitions, 400 flow [2020-04-17 18:34:29,939 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 177 places, 189 transitions, 400 flow [2020-04-17 18:34:30,028 INFO L129 PetriNetUnfolder]: 18/189 cut-off events. [2020-04-17 18:34:30,029 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 18:34:30,038 INFO L80 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 189 events. 18/189 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 443 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 163. Up to 3 conditions per place. [2020-04-17 18:34:30,050 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 177 places, 189 transitions, 400 flow [2020-04-17 18:34:30,106 INFO L129 PetriNetUnfolder]: 18/189 cut-off events. [2020-04-17 18:34:30,107 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 18:34:30,112 INFO L80 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 189 events. 18/189 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 443 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 163. Up to 3 conditions per place. [2020-04-17 18:34:30,125 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 15102 [2020-04-17 18:34:30,126 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:34:30,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:30,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:30,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:30,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:30,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:31,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:31,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:32,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:32,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:32,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:32,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:32,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:32,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:34:34,053 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-04-17 18:34:34,636 INFO L206 etLargeBlockEncoding]: Checked pairs total: 20924 [2020-04-17 18:34:34,636 INFO L214 etLargeBlockEncoding]: Total number of compositions: 153 [2020-04-17 18:34:34,639 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 65 transitions, 152 flow [2020-04-17 18:34:34,757 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2182 states. [2020-04-17 18:34:34,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states. [2020-04-17 18:34:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 18:34:34,780 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:34,781 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:34,781 INFO L427 AbstractCegarLoop]: === Iteration 1 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:34,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:34,788 INFO L82 PathProgramCache]: Analyzing trace with hash -437483837, now seen corresponding path program 1 times [2020-04-17 18:34:34,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:34,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112814062] [2020-04-17 18:34:34,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:35,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112814062] [2020-04-17 18:34:35,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:35,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 18:34:35,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452941406] [2020-04-17 18:34:35,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 18:34:35,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:35,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 18:34:35,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-17 18:34:35,330 INFO L87 Difference]: Start difference. First operand 2182 states. Second operand 6 states. [2020-04-17 18:34:35,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:35,707 INFO L93 Difference]: Finished difference Result 2169 states and 6982 transitions. [2020-04-17 18:34:35,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:34:35,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-17 18:34:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:35,761 INFO L225 Difference]: With dead ends: 2169 [2020-04-17 18:34:35,761 INFO L226 Difference]: Without dead ends: 2053 [2020-04-17 18:34:35,762 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-17 18:34:35,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2020-04-17 18:34:35,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2053. [2020-04-17 18:34:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2053 states. [2020-04-17 18:34:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 6650 transitions. [2020-04-17 18:34:35,941 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 6650 transitions. Word has length 17 [2020-04-17 18:34:35,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:35,942 INFO L479 AbstractCegarLoop]: Abstraction has 2053 states and 6650 transitions. [2020-04-17 18:34:35,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 18:34:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 6650 transitions. [2020-04-17 18:34:35,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 18:34:35,945 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:35,946 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:35,946 INFO L427 AbstractCegarLoop]: === Iteration 2 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:35,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:35,946 INFO L82 PathProgramCache]: Analyzing trace with hash -357357885, now seen corresponding path program 1 times [2020-04-17 18:34:35,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:35,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504702985] [2020-04-17 18:34:35,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:36,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504702985] [2020-04-17 18:34:36,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:36,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-17 18:34:36,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213403379] [2020-04-17 18:34:36,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-17 18:34:36,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:36,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-17 18:34:36,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:34:36,156 INFO L87 Difference]: Start difference. First operand 2053 states and 6650 transitions. Second operand 7 states. [2020-04-17 18:34:36,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:36,778 INFO L93 Difference]: Finished difference Result 2588 states and 8385 transitions. [2020-04-17 18:34:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:34:36,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-04-17 18:34:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:36,803 INFO L225 Difference]: With dead ends: 2588 [2020-04-17 18:34:36,803 INFO L226 Difference]: Without dead ends: 2544 [2020-04-17 18:34:36,804 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-04-17 18:34:36,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2020-04-17 18:34:36,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2544. [2020-04-17 18:34:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2544 states. [2020-04-17 18:34:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 8286 transitions. [2020-04-17 18:34:36,908 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 8286 transitions. Word has length 18 [2020-04-17 18:34:36,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:36,909 INFO L479 AbstractCegarLoop]: Abstraction has 2544 states and 8286 transitions. [2020-04-17 18:34:36,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-17 18:34:36,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 8286 transitions. [2020-04-17 18:34:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-17 18:34:36,914 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:36,915 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:36,915 INFO L427 AbstractCegarLoop]: === Iteration 3 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:36,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:36,916 INFO L82 PathProgramCache]: Analyzing trace with hash -220223314, now seen corresponding path program 1 times [2020-04-17 18:34:36,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:36,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133688389] [2020-04-17 18:34:36,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:37,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133688389] [2020-04-17 18:34:37,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:37,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-17 18:34:37,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939518730] [2020-04-17 18:34:37,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-17 18:34:37,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:37,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-17 18:34:37,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:34:37,438 INFO L87 Difference]: Start difference. First operand 2544 states and 8286 transitions. Second operand 13 states. [2020-04-17 18:34:38,037 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-04-17 18:34:39,524 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-04-17 18:34:39,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:39,786 INFO L93 Difference]: Finished difference Result 3164 states and 10236 transitions. [2020-04-17 18:34:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-17 18:34:39,796 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-17 18:34:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:39,820 INFO L225 Difference]: With dead ends: 3164 [2020-04-17 18:34:39,820 INFO L226 Difference]: Without dead ends: 3164 [2020-04-17 18:34:39,821 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=200, Invalid=400, Unknown=0, NotChecked=0, Total=600 [2020-04-17 18:34:39,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2020-04-17 18:34:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3104. [2020-04-17 18:34:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3104 states. [2020-04-17 18:34:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 10106 transitions. [2020-04-17 18:34:39,919 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 10106 transitions. Word has length 25 [2020-04-17 18:34:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:39,921 INFO L479 AbstractCegarLoop]: Abstraction has 3104 states and 10106 transitions. [2020-04-17 18:34:39,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-17 18:34:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 10106 transitions. [2020-04-17 18:34:39,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-17 18:34:39,929 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:39,929 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:39,929 INFO L427 AbstractCegarLoop]: === Iteration 4 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:39,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:39,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1041383458, now seen corresponding path program 1 times [2020-04-17 18:34:39,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:39,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503623032] [2020-04-17 18:34:39,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:40,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503623032] [2020-04-17 18:34:40,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:40,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-17 18:34:40,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709351375] [2020-04-17 18:34:40,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-17 18:34:40,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:40,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-17 18:34:40,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-04-17 18:34:40,423 INFO L87 Difference]: Start difference. First operand 3104 states and 10106 transitions. Second operand 12 states. [2020-04-17 18:34:41,693 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-04-17 18:34:42,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:42,031 INFO L93 Difference]: Finished difference Result 3654 states and 11776 transitions. [2020-04-17 18:34:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-17 18:34:42,032 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-04-17 18:34:42,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:42,058 INFO L225 Difference]: With dead ends: 3654 [2020-04-17 18:34:42,058 INFO L226 Difference]: Without dead ends: 3654 [2020-04-17 18:34:42,058 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2020-04-17 18:34:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2020-04-17 18:34:42,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3594. [2020-04-17 18:34:42,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3594 states. [2020-04-17 18:34:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 11646 transitions. [2020-04-17 18:34:42,159 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 11646 transitions. Word has length 25 [2020-04-17 18:34:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:42,160 INFO L479 AbstractCegarLoop]: Abstraction has 3594 states and 11646 transitions. [2020-04-17 18:34:42,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-17 18:34:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 11646 transitions. [2020-04-17 18:34:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-17 18:34:42,168 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:42,168 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:42,169 INFO L427 AbstractCegarLoop]: === Iteration 5 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:42,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:42,169 INFO L82 PathProgramCache]: Analyzing trace with hash 907099404, now seen corresponding path program 2 times [2020-04-17 18:34:42,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:42,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609874931] [2020-04-17 18:34:42,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:42,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609874931] [2020-04-17 18:34:42,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:42,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-17 18:34:42,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131233884] [2020-04-17 18:34:42,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-17 18:34:42,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:42,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-17 18:34:42,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:34:42,702 INFO L87 Difference]: Start difference. First operand 3594 states and 11646 transitions. Second operand 13 states. [2020-04-17 18:34:43,955 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-04-17 18:34:45,146 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-04-17 18:34:45,411 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-04-17 18:34:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:45,701 INFO L93 Difference]: Finished difference Result 5414 states and 17426 transitions. [2020-04-17 18:34:45,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-04-17 18:34:45,701 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-17 18:34:45,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:45,738 INFO L225 Difference]: With dead ends: 5414 [2020-04-17 18:34:45,738 INFO L226 Difference]: Without dead ends: 5414 [2020-04-17 18:34:45,739 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=264, Invalid=548, Unknown=0, NotChecked=0, Total=812 [2020-04-17 18:34:45,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2020-04-17 18:34:45,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 3844. [2020-04-17 18:34:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3844 states. [2020-04-17 18:34:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 12546 transitions. [2020-04-17 18:34:45,926 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 12546 transitions. Word has length 25 [2020-04-17 18:34:45,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:45,927 INFO L479 AbstractCegarLoop]: Abstraction has 3844 states and 12546 transitions. [2020-04-17 18:34:45,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-17 18:34:45,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 12546 transitions. [2020-04-17 18:34:45,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-17 18:34:45,935 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:45,935 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:45,935 INFO L427 AbstractCegarLoop]: === Iteration 6 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:45,936 INFO L82 PathProgramCache]: Analyzing trace with hash 356628326, now seen corresponding path program 3 times [2020-04-17 18:34:45,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:45,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434131735] [2020-04-17 18:34:45,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:46,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434131735] [2020-04-17 18:34:46,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:46,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-17 18:34:46,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754064985] [2020-04-17 18:34:46,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-17 18:34:46,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:46,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-17 18:34:46,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:34:46,424 INFO L87 Difference]: Start difference. First operand 3844 states and 12546 transitions. Second operand 13 states. [2020-04-17 18:34:49,325 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2020-04-17 18:34:49,586 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-04-17 18:34:49,750 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-04-17 18:34:50,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:50,083 INFO L93 Difference]: Finished difference Result 4818 states and 15403 transitions. [2020-04-17 18:34:50,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-17 18:34:50,083 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-17 18:34:50,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:50,098 INFO L225 Difference]: With dead ends: 4818 [2020-04-17 18:34:50,099 INFO L226 Difference]: Without dead ends: 4818 [2020-04-17 18:34:50,099 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=304, Invalid=688, Unknown=0, NotChecked=0, Total=992 [2020-04-17 18:34:50,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2020-04-17 18:34:50,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 3188. [2020-04-17 18:34:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3188 states. [2020-04-17 18:34:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 10243 transitions. [2020-04-17 18:34:50,210 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 10243 transitions. Word has length 25 [2020-04-17 18:34:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:50,210 INFO L479 AbstractCegarLoop]: Abstraction has 3188 states and 10243 transitions. [2020-04-17 18:34:50,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-17 18:34:50,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 10243 transitions. [2020-04-17 18:34:50,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-17 18:34:50,218 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:50,218 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:50,218 INFO L427 AbstractCegarLoop]: === Iteration 7 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:50,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1491389276, now seen corresponding path program 2 times [2020-04-17 18:34:50,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:50,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521026408] [2020-04-17 18:34:50,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:50,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521026408] [2020-04-17 18:34:50,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:50,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-17 18:34:50,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674519559] [2020-04-17 18:34:50,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-17 18:34:50,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:50,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-17 18:34:50,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:34:50,703 INFO L87 Difference]: Start difference. First operand 3188 states and 10243 transitions. Second operand 13 states. [2020-04-17 18:34:51,274 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-04-17 18:34:53,363 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-04-17 18:34:53,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:53,652 INFO L93 Difference]: Finished difference Result 4168 states and 13116 transitions. [2020-04-17 18:34:53,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-17 18:34:53,653 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-17 18:34:53,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:53,666 INFO L225 Difference]: With dead ends: 4168 [2020-04-17 18:34:53,666 INFO L226 Difference]: Without dead ends: 4168 [2020-04-17 18:34:53,667 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=268, Invalid=602, Unknown=0, NotChecked=0, Total=870 [2020-04-17 18:34:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4168 states. [2020-04-17 18:34:53,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 3188. [2020-04-17 18:34:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3188 states. [2020-04-17 18:34:53,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 10166 transitions. [2020-04-17 18:34:53,756 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 10166 transitions. Word has length 25 [2020-04-17 18:34:53,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:53,757 INFO L479 AbstractCegarLoop]: Abstraction has 3188 states and 10166 transitions. [2020-04-17 18:34:53,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-17 18:34:53,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 10166 transitions. [2020-04-17 18:34:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-17 18:34:53,763 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:53,763 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:34:53,764 INFO L427 AbstractCegarLoop]: === Iteration 8 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:53,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:53,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1997301412, now seen corresponding path program 3 times [2020-04-17 18:34:53,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:53,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230217562] [2020-04-17 18:34:53,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:54,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230217562] [2020-04-17 18:34:54,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:54,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-17 18:34:54,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131230513] [2020-04-17 18:34:54,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-17 18:34:54,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:54,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-17 18:34:54,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-04-17 18:34:54,243 INFO L87 Difference]: Start difference. First operand 3188 states and 10166 transitions. Second operand 12 states. [2020-04-17 18:34:56,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:34:56,545 INFO L93 Difference]: Finished difference Result 3972 states and 12550 transitions. [2020-04-17 18:34:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-17 18:34:56,546 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-04-17 18:34:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:34:56,556 INFO L225 Difference]: With dead ends: 3972 [2020-04-17 18:34:56,557 INFO L226 Difference]: Without dead ends: 3972 [2020-04-17 18:34:56,557 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2020-04-17 18:34:56,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2020-04-17 18:34:56,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2852. [2020-04-17 18:34:56,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-04-17 18:34:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 9100 transitions. [2020-04-17 18:34:56,637 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 9100 transitions. Word has length 25 [2020-04-17 18:34:56,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:34:56,637 INFO L479 AbstractCegarLoop]: Abstraction has 2852 states and 9100 transitions. [2020-04-17 18:34:56,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-17 18:34:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 9100 transitions. [2020-04-17 18:34:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:34:56,642 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:34:56,643 INFO L425 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] [2020-04-17 18:34:56,643 INFO L427 AbstractCegarLoop]: === Iteration 9 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:34:56,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:34:56,643 INFO L82 PathProgramCache]: Analyzing trace with hash -2081512480, now seen corresponding path program 1 times [2020-04-17 18:34:56,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:34:56,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323226795] [2020-04-17 18:34:56,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:34:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:34:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:34:57,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323226795] [2020-04-17 18:34:57,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:34:57,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:34:57,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422737007] [2020-04-17 18:34:57,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:34:57,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:34:57,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:34:57,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:34:57,347 INFO L87 Difference]: Start difference. First operand 2852 states and 9100 transitions. Second operand 16 states. [2020-04-17 18:34:58,678 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-17 18:34:58,975 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-17 18:35:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:00,406 INFO L93 Difference]: Finished difference Result 5017 states and 16252 transitions. [2020-04-17 18:35:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-17 18:35:00,406 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:00,423 INFO L225 Difference]: With dead ends: 5017 [2020-04-17 18:35:00,423 INFO L226 Difference]: Without dead ends: 5017 [2020-04-17 18:35:00,424 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:35:00,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2020-04-17 18:35:00,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 4102. [2020-04-17 18:35:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4102 states. [2020-04-17 18:35:00,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4102 states to 4102 states and 13138 transitions. [2020-04-17 18:35:00,554 INFO L78 Accepts]: Start accepts. Automaton has 4102 states and 13138 transitions. Word has length 27 [2020-04-17 18:35:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:00,554 INFO L479 AbstractCegarLoop]: Abstraction has 4102 states and 13138 transitions. [2020-04-17 18:35:00,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:00,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4102 states and 13138 transitions. [2020-04-17 18:35:00,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:00,564 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:00,564 INFO L425 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] [2020-04-17 18:35:00,565 INFO L427 AbstractCegarLoop]: === Iteration 10 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:00,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2081512479, now seen corresponding path program 1 times [2020-04-17 18:35:00,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:00,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390433646] [2020-04-17 18:35:00,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:01,021 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2020-04-17 18:35:01,185 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 36 [2020-04-17 18:35:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:01,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390433646] [2020-04-17 18:35:01,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:01,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:01,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547246367] [2020-04-17 18:35:01,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:01,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:01,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:01,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:01,404 INFO L87 Difference]: Start difference. First operand 4102 states and 13138 transitions. Second operand 16 states. [2020-04-17 18:35:02,482 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2020-04-17 18:35:02,747 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2020-04-17 18:35:03,023 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-04-17 18:35:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:04,386 INFO L93 Difference]: Finished difference Result 5017 states and 16132 transitions. [2020-04-17 18:35:04,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-17 18:35:04,386 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:04,401 INFO L225 Difference]: With dead ends: 5017 [2020-04-17 18:35:04,401 INFO L226 Difference]: Without dead ends: 5017 [2020-04-17 18:35:04,402 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:35:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2020-04-17 18:35:04,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 4102. [2020-04-17 18:35:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4102 states. [2020-04-17 18:35:04,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4102 states to 4102 states and 13063 transitions. [2020-04-17 18:35:04,502 INFO L78 Accepts]: Start accepts. Automaton has 4102 states and 13063 transitions. Word has length 27 [2020-04-17 18:35:04,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:04,502 INFO L479 AbstractCegarLoop]: Abstraction has 4102 states and 13063 transitions. [2020-04-17 18:35:04,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4102 states and 13063 transitions. [2020-04-17 18:35:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:04,513 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:04,513 INFO L425 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] [2020-04-17 18:35:04,513 INFO L427 AbstractCegarLoop]: === Iteration 11 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:04,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:04,513 INFO L82 PathProgramCache]: Analyzing trace with hash 363501539, now seen corresponding path program 1 times [2020-04-17 18:35:04,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:04,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626385945] [2020-04-17 18:35:04,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:05,124 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 33 [2020-04-17 18:35:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:05,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626385945] [2020-04-17 18:35:05,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:05,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-17 18:35:05,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50615091] [2020-04-17 18:35:05,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-17 18:35:05,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:05,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-17 18:35:05,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-04-17 18:35:05,326 INFO L87 Difference]: Start difference. First operand 4102 states and 13063 transitions. Second operand 15 states. [2020-04-17 18:35:07,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:07,874 INFO L93 Difference]: Finished difference Result 6137 states and 19705 transitions. [2020-04-17 18:35:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-17 18:35:07,874 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-17 18:35:07,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:07,884 INFO L225 Difference]: With dead ends: 6137 [2020-04-17 18:35:07,884 INFO L226 Difference]: Without dead ends: 6137 [2020-04-17 18:35:07,885 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2020-04-17 18:35:07,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6137 states. [2020-04-17 18:35:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6137 to 4620. [2020-04-17 18:35:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4620 states. [2020-04-17 18:35:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 14657 transitions. [2020-04-17 18:35:07,994 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 14657 transitions. Word has length 27 [2020-04-17 18:35:07,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:07,994 INFO L479 AbstractCegarLoop]: Abstraction has 4620 states and 14657 transitions. [2020-04-17 18:35:07,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-17 18:35:07,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 14657 transitions. [2020-04-17 18:35:08,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:08,004 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:08,005 INFO L425 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] [2020-04-17 18:35:08,005 INFO L427 AbstractCegarLoop]: === Iteration 12 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:08,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:08,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1056139074, now seen corresponding path program 2 times [2020-04-17 18:35:08,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:08,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132875578] [2020-04-17 18:35:08,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:08,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132875578] [2020-04-17 18:35:08,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:08,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:08,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127599746] [2020-04-17 18:35:08,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:08,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:08,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:08,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:08,860 INFO L87 Difference]: Start difference. First operand 4620 states and 14657 transitions. Second operand 16 states. [2020-04-17 18:35:10,137 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-04-17 18:35:10,435 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-17 18:35:12,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:12,065 INFO L93 Difference]: Finished difference Result 7329 states and 23321 transitions. [2020-04-17 18:35:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-17 18:35:12,066 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:12,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:12,078 INFO L225 Difference]: With dead ends: 7329 [2020-04-17 18:35:12,078 INFO L226 Difference]: Without dead ends: 7329 [2020-04-17 18:35:12,078 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:35:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2020-04-17 18:35:12,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 4804. [2020-04-17 18:35:12,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4804 states. [2020-04-17 18:35:12,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4804 states to 4804 states and 15209 transitions. [2020-04-17 18:35:12,201 INFO L78 Accepts]: Start accepts. Automaton has 4804 states and 15209 transitions. Word has length 27 [2020-04-17 18:35:12,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:12,203 INFO L479 AbstractCegarLoop]: Abstraction has 4804 states and 15209 transitions. [2020-04-17 18:35:12,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:12,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4804 states and 15209 transitions. [2020-04-17 18:35:12,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:12,217 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:12,217 INFO L425 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] [2020-04-17 18:35:12,218 INFO L427 AbstractCegarLoop]: === Iteration 13 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:12,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:12,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1544227084, now seen corresponding path program 3 times [2020-04-17 18:35:12,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:12,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112442639] [2020-04-17 18:35:12,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:13,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112442639] [2020-04-17 18:35:13,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:13,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:13,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065602406] [2020-04-17 18:35:13,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:13,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:13,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:13,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:13,116 INFO L87 Difference]: Start difference. First operand 4804 states and 15209 transitions. Second operand 16 states. [2020-04-17 18:35:14,436 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2020-04-17 18:35:14,720 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-17 18:35:16,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:16,521 INFO L93 Difference]: Finished difference Result 6739 states and 21561 transitions. [2020-04-17 18:35:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-17 18:35:16,521 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:16,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:16,534 INFO L225 Difference]: With dead ends: 6739 [2020-04-17 18:35:16,534 INFO L226 Difference]: Without dead ends: 6739 [2020-04-17 18:35:16,534 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:35:16,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6739 states. [2020-04-17 18:35:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6739 to 4804. [2020-04-17 18:35:16,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4804 states. [2020-04-17 18:35:16,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4804 states to 4804 states and 15209 transitions. [2020-04-17 18:35:16,644 INFO L78 Accepts]: Start accepts. Automaton has 4804 states and 15209 transitions. Word has length 27 [2020-04-17 18:35:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:16,644 INFO L479 AbstractCegarLoop]: Abstraction has 4804 states and 15209 transitions. [2020-04-17 18:35:16,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:16,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4804 states and 15209 transitions. [2020-04-17 18:35:16,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:16,655 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:16,655 INFO L425 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] [2020-04-17 18:35:16,656 INFO L427 AbstractCegarLoop]: === Iteration 14 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:16,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:16,656 INFO L82 PathProgramCache]: Analyzing trace with hash 796249174, now seen corresponding path program 4 times [2020-04-17 18:35:16,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:16,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170951900] [2020-04-17 18:35:16,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:17,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:17,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170951900] [2020-04-17 18:35:17,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:17,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:17,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972609060] [2020-04-17 18:35:17,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:17,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:17,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:17,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:17,418 INFO L87 Difference]: Start difference. First operand 4804 states and 15209 transitions. Second operand 16 states. [2020-04-17 18:35:18,854 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-17 18:35:19,259 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-17 18:35:19,388 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-04-17 18:35:21,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:21,180 INFO L93 Difference]: Finished difference Result 6619 states and 21321 transitions. [2020-04-17 18:35:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-17 18:35:21,180 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:21,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:21,191 INFO L225 Difference]: With dead ends: 6619 [2020-04-17 18:35:21,191 INFO L226 Difference]: Without dead ends: 6619 [2020-04-17 18:35:21,192 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=176, Invalid=636, Unknown=0, NotChecked=0, Total=812 [2020-04-17 18:35:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6619 states. [2020-04-17 18:35:21,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6619 to 5634. [2020-04-17 18:35:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5634 states. [2020-04-17 18:35:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 17987 transitions. [2020-04-17 18:35:21,276 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 17987 transitions. Word has length 27 [2020-04-17 18:35:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:21,277 INFO L479 AbstractCegarLoop]: Abstraction has 5634 states and 17987 transitions. [2020-04-17 18:35:21,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 17987 transitions. [2020-04-17 18:35:21,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:21,286 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:21,286 INFO L425 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] [2020-04-17 18:35:21,287 INFO L427 AbstractCegarLoop]: === Iteration 15 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:21,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:21,287 INFO L82 PathProgramCache]: Analyzing trace with hash 796249175, now seen corresponding path program 2 times [2020-04-17 18:35:21,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:21,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069158006] [2020-04-17 18:35:21,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:22,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069158006] [2020-04-17 18:35:22,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:22,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:22,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994094090] [2020-04-17 18:35:22,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:22,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:22,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:22,028 INFO L87 Difference]: Start difference. First operand 5634 states and 17987 transitions. Second operand 16 states. [2020-04-17 18:35:23,344 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-04-17 18:35:23,709 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-17 18:35:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:25,541 INFO L93 Difference]: Finished difference Result 6619 states and 21201 transitions. [2020-04-17 18:35:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-17 18:35:25,541 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:25,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:25,553 INFO L225 Difference]: With dead ends: 6619 [2020-04-17 18:35:25,553 INFO L226 Difference]: Without dead ends: 6619 [2020-04-17 18:35:25,556 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=176, Invalid=636, Unknown=0, NotChecked=0, Total=812 [2020-04-17 18:35:25,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6619 states. [2020-04-17 18:35:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6619 to 4804. [2020-04-17 18:35:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4804 states. [2020-04-17 18:35:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4804 states to 4804 states and 15209 transitions. [2020-04-17 18:35:25,642 INFO L78 Accepts]: Start accepts. Automaton has 4804 states and 15209 transitions. Word has length 27 [2020-04-17 18:35:25,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:25,643 INFO L479 AbstractCegarLoop]: Abstraction has 4804 states and 15209 transitions. [2020-04-17 18:35:25,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 4804 states and 15209 transitions. [2020-04-17 18:35:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:25,650 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:25,650 INFO L425 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] [2020-04-17 18:35:25,650 INFO L427 AbstractCegarLoop]: === Iteration 16 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:25,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:25,651 INFO L82 PathProgramCache]: Analyzing trace with hash 471322490, now seen corresponding path program 5 times [2020-04-17 18:35:25,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:25,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798789936] [2020-04-17 18:35:25,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:26,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798789936] [2020-04-17 18:35:26,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:26,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:26,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483912881] [2020-04-17 18:35:26,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:26,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:26,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:26,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:26,310 INFO L87 Difference]: Start difference. First operand 4804 states and 15209 transitions. Second operand 16 states. [2020-04-17 18:35:27,570 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-17 18:35:28,042 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-17 18:35:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:30,148 INFO L93 Difference]: Finished difference Result 8562 states and 27805 transitions. [2020-04-17 18:35:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-17 18:35:30,148 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:30,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:30,162 INFO L225 Difference]: With dead ends: 8562 [2020-04-17 18:35:30,163 INFO L226 Difference]: Without dead ends: 8562 [2020-04-17 18:35:30,163 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-04-17 18:35:30,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2020-04-17 18:35:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 5539. [2020-04-17 18:35:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5539 states. [2020-04-17 18:35:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 17692 transitions. [2020-04-17 18:35:30,285 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 17692 transitions. Word has length 27 [2020-04-17 18:35:30,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:30,286 INFO L479 AbstractCegarLoop]: Abstraction has 5539 states and 17692 transitions. [2020-04-17 18:35:30,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 17692 transitions. [2020-04-17 18:35:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:30,296 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:30,296 INFO L425 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] [2020-04-17 18:35:30,296 INFO L427 AbstractCegarLoop]: === Iteration 17 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:30,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:30,296 INFO L82 PathProgramCache]: Analyzing trace with hash 471322491, now seen corresponding path program 3 times [2020-04-17 18:35:30,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:30,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899215148] [2020-04-17 18:35:30,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:30,834 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-04-17 18:35:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:31,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899215148] [2020-04-17 18:35:31,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:31,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:31,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654877432] [2020-04-17 18:35:31,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:31,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:31,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:31,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:31,112 INFO L87 Difference]: Start difference. First operand 5539 states and 17692 transitions. Second operand 16 states. [2020-04-17 18:35:32,431 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-04-17 18:35:32,839 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-17 18:35:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:35,089 INFO L93 Difference]: Finished difference Result 8562 states and 27685 transitions. [2020-04-17 18:35:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-17 18:35:35,089 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:35,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:35,102 INFO L225 Difference]: With dead ends: 8562 [2020-04-17 18:35:35,103 INFO L226 Difference]: Without dead ends: 8562 [2020-04-17 18:35:35,103 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-04-17 18:35:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2020-04-17 18:35:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 4849. [2020-04-17 18:35:35,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4849 states. [2020-04-17 18:35:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 15354 transitions. [2020-04-17 18:35:35,213 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 15354 transitions. Word has length 27 [2020-04-17 18:35:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:35,214 INFO L479 AbstractCegarLoop]: Abstraction has 4849 states and 15354 transitions. [2020-04-17 18:35:35,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 15354 transitions. [2020-04-17 18:35:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:35,220 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:35,220 INFO L425 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] [2020-04-17 18:35:35,220 INFO L427 AbstractCegarLoop]: === Iteration 18 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:35,220 INFO L82 PathProgramCache]: Analyzing trace with hash -869839874, now seen corresponding path program 6 times [2020-04-17 18:35:35,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:35,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997244411] [2020-04-17 18:35:35,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:35,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:35,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997244411] [2020-04-17 18:35:35,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:35,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:35,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058728582] [2020-04-17 18:35:35,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:35,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:35,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:35,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:35,919 INFO L87 Difference]: Start difference. First operand 4849 states and 15354 transitions. Second operand 16 states. [2020-04-17 18:35:36,558 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2020-04-17 18:35:36,801 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:35:37,415 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2020-04-17 18:35:37,695 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-04-17 18:35:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:39,309 INFO L93 Difference]: Finished difference Result 7194 states and 22926 transitions. [2020-04-17 18:35:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-17 18:35:39,310 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:39,322 INFO L225 Difference]: With dead ends: 7194 [2020-04-17 18:35:39,322 INFO L226 Difference]: Without dead ends: 7194 [2020-04-17 18:35:39,323 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2020-04-17 18:35:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7194 states. [2020-04-17 18:35:39,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7194 to 4849. [2020-04-17 18:35:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4849 states. [2020-04-17 18:35:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 15354 transitions. [2020-04-17 18:35:39,488 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 15354 transitions. Word has length 27 [2020-04-17 18:35:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:39,488 INFO L479 AbstractCegarLoop]: Abstraction has 4849 states and 15354 transitions. [2020-04-17 18:35:39,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 15354 transitions. [2020-04-17 18:35:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:39,495 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:39,495 INFO L425 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] [2020-04-17 18:35:39,495 INFO L427 AbstractCegarLoop]: === Iteration 19 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:39,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:39,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1615360997, now seen corresponding path program 2 times [2020-04-17 18:35:39,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:39,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691828526] [2020-04-17 18:35:39,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:40,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691828526] [2020-04-17 18:35:40,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:40,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:40,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986527033] [2020-04-17 18:35:40,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:40,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:40,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:40,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:40,222 INFO L87 Difference]: Start difference. First operand 4849 states and 15354 transitions. Second operand 16 states. [2020-04-17 18:35:41,598 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45 [2020-04-17 18:35:43,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:43,115 INFO L93 Difference]: Finished difference Result 7103 states and 22712 transitions. [2020-04-17 18:35:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-17 18:35:43,115 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:43,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:43,127 INFO L225 Difference]: With dead ends: 7103 [2020-04-17 18:35:43,127 INFO L226 Difference]: Without dead ends: 7103 [2020-04-17 18:35:43,127 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:35:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7103 states. [2020-04-17 18:35:43,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7103 to 6003. [2020-04-17 18:35:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6003 states. [2020-04-17 18:35:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 19104 transitions. [2020-04-17 18:35:43,219 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 19104 transitions. Word has length 27 [2020-04-17 18:35:43,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:43,219 INFO L479 AbstractCegarLoop]: Abstraction has 6003 states and 19104 transitions. [2020-04-17 18:35:43,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:43,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 19104 transitions. [2020-04-17 18:35:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:43,226 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:43,226 INFO L425 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] [2020-04-17 18:35:43,226 INFO L427 AbstractCegarLoop]: === Iteration 20 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:43,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1615360998, now seen corresponding path program 1 times [2020-04-17 18:35:43,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:43,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4776391] [2020-04-17 18:35:43,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:44,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4776391] [2020-04-17 18:35:44,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:44,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:35:44,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621913634] [2020-04-17 18:35:44,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:35:44,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:44,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:35:44,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:35:44,050 INFO L87 Difference]: Start difference. First operand 6003 states and 19104 transitions. Second operand 16 states. [2020-04-17 18:35:45,817 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2020-04-17 18:35:47,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:47,663 INFO L93 Difference]: Finished difference Result 7028 states and 22428 transitions. [2020-04-17 18:35:47,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-17 18:35:47,665 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:35:47,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:47,676 INFO L225 Difference]: With dead ends: 7028 [2020-04-17 18:35:47,676 INFO L226 Difference]: Without dead ends: 7028 [2020-04-17 18:35:47,677 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:35:47,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7028 states. [2020-04-17 18:35:47,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7028 to 4733. [2020-04-17 18:35:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4733 states. [2020-04-17 18:35:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4733 states to 4733 states and 15006 transitions. [2020-04-17 18:35:47,762 INFO L78 Accepts]: Start accepts. Automaton has 4733 states and 15006 transitions. Word has length 27 [2020-04-17 18:35:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:47,763 INFO L479 AbstractCegarLoop]: Abstraction has 4733 states and 15006 transitions. [2020-04-17 18:35:47,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:35:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4733 states and 15006 transitions. [2020-04-17 18:35:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:47,768 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:47,768 INFO L425 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] [2020-04-17 18:35:47,769 INFO L427 AbstractCegarLoop]: === Iteration 21 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:47,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:47,769 INFO L82 PathProgramCache]: Analyzing trace with hash -122346011, now seen corresponding path program 3 times [2020-04-17 18:35:47,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:47,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770000125] [2020-04-17 18:35:47,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:48,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770000125] [2020-04-17 18:35:48,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:48,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-17 18:35:48,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717745015] [2020-04-17 18:35:48,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-17 18:35:48,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:48,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-17 18:35:48,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-17 18:35:48,471 INFO L87 Difference]: Start difference. First operand 4733 states and 15006 transitions. Second operand 15 states. [2020-04-17 18:35:51,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:51,165 INFO L93 Difference]: Finished difference Result 6548 states and 20998 transitions. [2020-04-17 18:35:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-17 18:35:51,166 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-17 18:35:51,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:51,177 INFO L225 Difference]: With dead ends: 6548 [2020-04-17 18:35:51,177 INFO L226 Difference]: Without dead ends: 6548 [2020-04-17 18:35:51,177 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2020-04-17 18:35:51,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2020-04-17 18:35:51,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 4733. [2020-04-17 18:35:51,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4733 states. [2020-04-17 18:35:51,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4733 states to 4733 states and 15006 transitions. [2020-04-17 18:35:51,329 INFO L78 Accepts]: Start accepts. Automaton has 4733 states and 15006 transitions. Word has length 27 [2020-04-17 18:35:51,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:51,329 INFO L479 AbstractCegarLoop]: Abstraction has 4733 states and 15006 transitions. [2020-04-17 18:35:51,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-17 18:35:51,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4733 states and 15006 transitions. [2020-04-17 18:35:51,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:51,337 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:51,338 INFO L425 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] [2020-04-17 18:35:51,338 INFO L427 AbstractCegarLoop]: === Iteration 22 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:51,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:51,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1197665119, now seen corresponding path program 4 times [2020-04-17 18:35:51,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:51,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254920895] [2020-04-17 18:35:51,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:51,804 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 33 [2020-04-17 18:35:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:52,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254920895] [2020-04-17 18:35:52,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:52,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-17 18:35:52,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473317632] [2020-04-17 18:35:52,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-17 18:35:52,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:52,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-17 18:35:52,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-17 18:35:52,033 INFO L87 Difference]: Start difference. First operand 4733 states and 15006 transitions. Second operand 15 states. [2020-04-17 18:35:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:55,126 INFO L93 Difference]: Finished difference Result 8491 states and 27482 transitions. [2020-04-17 18:35:55,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-17 18:35:55,126 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-17 18:35:55,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:55,141 INFO L225 Difference]: With dead ends: 8491 [2020-04-17 18:35:55,142 INFO L226 Difference]: Without dead ends: 8491 [2020-04-17 18:35:55,142 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:35:55,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2020-04-17 18:35:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 4739. [2020-04-17 18:35:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4739 states. [2020-04-17 18:35:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4739 states to 4739 states and 15025 transitions. [2020-04-17 18:35:55,234 INFO L78 Accepts]: Start accepts. Automaton has 4739 states and 15025 transitions. Word has length 27 [2020-04-17 18:35:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:55,234 INFO L479 AbstractCegarLoop]: Abstraction has 4739 states and 15025 transitions. [2020-04-17 18:35:55,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-17 18:35:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 4739 states and 15025 transitions. [2020-04-17 18:35:55,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:55,239 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:55,239 INFO L425 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] [2020-04-17 18:35:55,240 INFO L427 AbstractCegarLoop]: === Iteration 23 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:55,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:55,240 INFO L82 PathProgramCache]: Analyzing trace with hash 14057405, now seen corresponding path program 5 times [2020-04-17 18:35:55,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:55,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707905693] [2020-04-17 18:35:55,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:55,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707905693] [2020-04-17 18:35:55,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:55,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-17 18:35:55,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307614812] [2020-04-17 18:35:55,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-17 18:35:55,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:55,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-17 18:35:55,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-17 18:35:55,897 INFO L87 Difference]: Start difference. First operand 4739 states and 15025 transitions. Second operand 15 states. [2020-04-17 18:35:58,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:35:58,707 INFO L93 Difference]: Finished difference Result 6594 states and 21127 transitions. [2020-04-17 18:35:58,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-17 18:35:58,707 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-17 18:35:58,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:35:58,719 INFO L225 Difference]: With dead ends: 6594 [2020-04-17 18:35:58,719 INFO L226 Difference]: Without dead ends: 6594 [2020-04-17 18:35:58,720 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-04-17 18:35:58,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6594 states. [2020-04-17 18:35:58,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6594 to 4739. [2020-04-17 18:35:58,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4739 states. [2020-04-17 18:35:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4739 states to 4739 states and 15025 transitions. [2020-04-17 18:35:58,797 INFO L78 Accepts]: Start accepts. Automaton has 4739 states and 15025 transitions. Word has length 27 [2020-04-17 18:35:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:35:58,798 INFO L479 AbstractCegarLoop]: Abstraction has 4739 states and 15025 transitions. [2020-04-17 18:35:58,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-17 18:35:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 4739 states and 15025 transitions. [2020-04-17 18:35:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:35:58,802 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:35:58,802 INFO L425 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] [2020-04-17 18:35:58,803 INFO L427 AbstractCegarLoop]: === Iteration 24 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:35:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:35:58,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1226775101, now seen corresponding path program 6 times [2020-04-17 18:35:58,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:35:58,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355109122] [2020-04-17 18:35:58,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:35:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:35:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:35:59,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355109122] [2020-04-17 18:35:59,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:35:59,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-17 18:35:59,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057511363] [2020-04-17 18:35:59,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-17 18:35:59,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:35:59,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-17 18:35:59,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-04-17 18:35:59,418 INFO L87 Difference]: Start difference. First operand 4739 states and 15025 transitions. Second operand 15 states. [2020-04-17 18:36:02,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:02,131 INFO L93 Difference]: Finished difference Result 6784 states and 21677 transitions. [2020-04-17 18:36:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-17 18:36:02,132 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-17 18:36:02,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:02,143 INFO L225 Difference]: With dead ends: 6784 [2020-04-17 18:36:02,143 INFO L226 Difference]: Without dead ends: 6784 [2020-04-17 18:36:02,144 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2020-04-17 18:36:02,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6784 states. [2020-04-17 18:36:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6784 to 4049. [2020-04-17 18:36:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4049 states. [2020-04-17 18:36:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4049 states to 4049 states and 12935 transitions. [2020-04-17 18:36:02,216 INFO L78 Accepts]: Start accepts. Automaton has 4049 states and 12935 transitions. Word has length 27 [2020-04-17 18:36:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:02,217 INFO L479 AbstractCegarLoop]: Abstraction has 4049 states and 12935 transitions. [2020-04-17 18:36:02,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-17 18:36:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4049 states and 12935 transitions. [2020-04-17 18:36:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:36:02,222 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:02,222 INFO L425 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] [2020-04-17 18:36:02,222 INFO L427 AbstractCegarLoop]: === Iteration 25 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:02,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:02,222 INFO L82 PathProgramCache]: Analyzing trace with hash -2094907358, now seen corresponding path program 7 times [2020-04-17 18:36:02,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:02,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256181158] [2020-04-17 18:36:02,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:02,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256181158] [2020-04-17 18:36:02,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:02,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-17 18:36:02,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097863276] [2020-04-17 18:36:02,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:36:02,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:02,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:36:02,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:36:02,937 INFO L87 Difference]: Start difference. First operand 4049 states and 12935 transitions. Second operand 16 states. [2020-04-17 18:36:04,567 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-04-17 18:36:04,874 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-17 18:36:06,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:06,591 INFO L93 Difference]: Finished difference Result 5954 states and 19167 transitions. [2020-04-17 18:36:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-17 18:36:06,591 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-17 18:36:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:06,601 INFO L225 Difference]: With dead ends: 5954 [2020-04-17 18:36:06,601 INFO L226 Difference]: Without dead ends: 5954 [2020-04-17 18:36:06,602 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2020-04-17 18:36:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2020-04-17 18:36:06,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 3549. [2020-04-17 18:36:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2020-04-17 18:36:06,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 11415 transitions. [2020-04-17 18:36:06,663 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 11415 transitions. Word has length 27 [2020-04-17 18:36:06,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:06,663 INFO L479 AbstractCegarLoop]: Abstraction has 3549 states and 11415 transitions. [2020-04-17 18:36:06,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:36:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 11415 transitions. [2020-04-17 18:36:06,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:06,666 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:06,666 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:06,666 INFO L427 AbstractCegarLoop]: === Iteration 26 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:06,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:06,667 INFO L82 PathProgramCache]: Analyzing trace with hash 399516870, now seen corresponding path program 1 times [2020-04-17 18:36:06,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:06,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963126946] [2020-04-17 18:36:06,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:07,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:07,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963126946] [2020-04-17 18:36:07,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:07,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-17 18:36:07,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788322538] [2020-04-17 18:36:07,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-17 18:36:07,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:07,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-17 18:36:07,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2020-04-17 18:36:07,785 INFO L87 Difference]: Start difference. First operand 3549 states and 11415 transitions. Second operand 20 states. [2020-04-17 18:36:08,328 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-04-17 18:36:08,617 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2020-04-17 18:36:08,888 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2020-04-17 18:36:09,406 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2020-04-17 18:36:12,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:12,589 INFO L93 Difference]: Finished difference Result 7420 states and 24247 transitions. [2020-04-17 18:36:12,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-17 18:36:12,590 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 30 [2020-04-17 18:36:12,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:12,602 INFO L225 Difference]: With dead ends: 7420 [2020-04-17 18:36:12,602 INFO L226 Difference]: Without dead ends: 7420 [2020-04-17 18:36:12,603 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=224, Invalid=898, Unknown=0, NotChecked=0, Total=1122 [2020-04-17 18:36:12,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7420 states. [2020-04-17 18:36:12,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 4814. [2020-04-17 18:36:12,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4814 states. [2020-04-17 18:36:12,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 15490 transitions. [2020-04-17 18:36:12,689 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 15490 transitions. Word has length 30 [2020-04-17 18:36:12,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:12,690 INFO L479 AbstractCegarLoop]: Abstraction has 4814 states and 15490 transitions. [2020-04-17 18:36:12,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-17 18:36:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 15490 transitions. [2020-04-17 18:36:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:12,696 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:12,696 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:12,696 INFO L427 AbstractCegarLoop]: === Iteration 27 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:12,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:12,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1461784035, now seen corresponding path program 1 times [2020-04-17 18:36:12,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:12,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753844359] [2020-04-17 18:36:12,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:13,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:13,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753844359] [2020-04-17 18:36:13,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:13,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-17 18:36:13,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807157315] [2020-04-17 18:36:13,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-17 18:36:13,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:13,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-17 18:36:13,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:36:13,010 INFO L87 Difference]: Start difference. First operand 4814 states and 15490 transitions. Second operand 13 states. [2020-04-17 18:36:14,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:14,563 INFO L93 Difference]: Finished difference Result 11335 states and 36706 transitions. [2020-04-17 18:36:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-17 18:36:14,563 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-04-17 18:36:14,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:14,582 INFO L225 Difference]: With dead ends: 11335 [2020-04-17 18:36:14,582 INFO L226 Difference]: Without dead ends: 11335 [2020-04-17 18:36:14,583 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-04-17 18:36:14,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11335 states. [2020-04-17 18:36:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11335 to 8356. [2020-04-17 18:36:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8356 states. [2020-04-17 18:36:14,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8356 states to 8356 states and 27624 transitions. [2020-04-17 18:36:14,732 INFO L78 Accepts]: Start accepts. Automaton has 8356 states and 27624 transitions. Word has length 30 [2020-04-17 18:36:14,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:14,732 INFO L479 AbstractCegarLoop]: Abstraction has 8356 states and 27624 transitions. [2020-04-17 18:36:14,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-17 18:36:14,732 INFO L276 IsEmpty]: Start isEmpty. Operand 8356 states and 27624 transitions. [2020-04-17 18:36:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:14,740 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:14,741 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:14,741 INFO L427 AbstractCegarLoop]: === Iteration 28 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:14,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:14,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1491245864, now seen corresponding path program 2 times [2020-04-17 18:36:14,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:14,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568355203] [2020-04-17 18:36:14,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:15,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568355203] [2020-04-17 18:36:15,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:15,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-17 18:36:15,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87348085] [2020-04-17 18:36:15,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-17 18:36:15,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:15,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-17 18:36:15,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-04-17 18:36:15,355 INFO L87 Difference]: Start difference. First operand 8356 states and 27624 transitions. Second operand 17 states. [2020-04-17 18:36:16,660 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-04-17 18:36:17,191 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-04-17 18:36:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:18,713 INFO L93 Difference]: Finished difference Result 13039 states and 42934 transitions. [2020-04-17 18:36:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-17 18:36:18,713 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2020-04-17 18:36:18,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:18,733 INFO L225 Difference]: With dead ends: 13039 [2020-04-17 18:36:18,733 INFO L226 Difference]: Without dead ends: 13039 [2020-04-17 18:36:18,734 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2020-04-17 18:36:18,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13039 states. [2020-04-17 18:36:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13039 to 8606. [2020-04-17 18:36:18,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8606 states. [2020-04-17 18:36:18,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8606 states to 8606 states and 28374 transitions. [2020-04-17 18:36:18,859 INFO L78 Accepts]: Start accepts. Automaton has 8606 states and 28374 transitions. Word has length 30 [2020-04-17 18:36:18,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:18,859 INFO L479 AbstractCegarLoop]: Abstraction has 8606 states and 28374 transitions. [2020-04-17 18:36:18,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-17 18:36:18,859 INFO L276 IsEmpty]: Start isEmpty. Operand 8606 states and 28374 transitions. [2020-04-17 18:36:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:18,867 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:18,867 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:18,867 INFO L427 AbstractCegarLoop]: === Iteration 29 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:18,868 INFO L82 PathProgramCache]: Analyzing trace with hash -674363086, now seen corresponding path program 3 times [2020-04-17 18:36:18,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:18,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505116687] [2020-04-17 18:36:18,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:19,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505116687] [2020-04-17 18:36:19,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:19,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-17 18:36:19,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128030] [2020-04-17 18:36:19,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-17 18:36:19,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:19,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-17 18:36:19,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:36:19,133 INFO L87 Difference]: Start difference. First operand 8606 states and 28374 transitions. Second operand 13 states. [2020-04-17 18:36:21,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:21,605 INFO L93 Difference]: Finished difference Result 17441 states and 57280 transitions. [2020-04-17 18:36:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-17 18:36:21,605 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-04-17 18:36:21,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:21,633 INFO L225 Difference]: With dead ends: 17441 [2020-04-17 18:36:21,633 INFO L226 Difference]: Without dead ends: 17441 [2020-04-17 18:36:21,634 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2020-04-17 18:36:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17441 states. [2020-04-17 18:36:21,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17441 to 11506. [2020-04-17 18:36:21,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11506 states. [2020-04-17 18:36:21,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11506 states to 11506 states and 38701 transitions. [2020-04-17 18:36:21,828 INFO L78 Accepts]: Start accepts. Automaton has 11506 states and 38701 transitions. Word has length 30 [2020-04-17 18:36:21,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:21,829 INFO L479 AbstractCegarLoop]: Abstraction has 11506 states and 38701 transitions. [2020-04-17 18:36:21,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-17 18:36:21,829 INFO L276 IsEmpty]: Start isEmpty. Operand 11506 states and 38701 transitions. [2020-04-17 18:36:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:21,840 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:21,840 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:21,840 INFO L427 AbstractCegarLoop]: === Iteration 30 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:21,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1889101151, now seen corresponding path program 2 times [2020-04-17 18:36:21,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:21,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604644402] [2020-04-17 18:36:21,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:22,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604644402] [2020-04-17 18:36:22,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:22,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-17 18:36:22,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323253176] [2020-04-17 18:36:22,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:36:22,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:22,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:36:22,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:36:22,765 INFO L87 Difference]: Start difference. First operand 11506 states and 38701 transitions. Second operand 19 states. [2020-04-17 18:36:23,520 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2020-04-17 18:36:23,662 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2020-04-17 18:36:23,886 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2020-04-17 18:36:24,060 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2020-04-17 18:36:24,542 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2020-04-17 18:36:25,151 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2020-04-17 18:36:27,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:27,206 INFO L93 Difference]: Finished difference Result 16383 states and 54578 transitions. [2020-04-17 18:36:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-04-17 18:36:27,206 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 30 [2020-04-17 18:36:27,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:27,242 INFO L225 Difference]: With dead ends: 16383 [2020-04-17 18:36:27,242 INFO L226 Difference]: Without dead ends: 16383 [2020-04-17 18:36:27,245 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2020-04-17 18:36:27,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16383 states. [2020-04-17 18:36:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16383 to 12246. [2020-04-17 18:36:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12246 states. [2020-04-17 18:36:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12246 states to 12246 states and 40941 transitions. [2020-04-17 18:36:27,441 INFO L78 Accepts]: Start accepts. Automaton has 12246 states and 40941 transitions. Word has length 30 [2020-04-17 18:36:27,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:27,441 INFO L479 AbstractCegarLoop]: Abstraction has 12246 states and 40941 transitions. [2020-04-17 18:36:27,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-17 18:36:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 12246 states and 40941 transitions. [2020-04-17 18:36:27,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:27,456 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:27,456 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:27,456 INFO L427 AbstractCegarLoop]: === Iteration 31 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:27,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:27,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1617209505, now seen corresponding path program 3 times [2020-04-17 18:36:27,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:27,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673687430] [2020-04-17 18:36:27,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:28,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673687430] [2020-04-17 18:36:28,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:28,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-04-17 18:36:28,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583742977] [2020-04-17 18:36:28,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-17 18:36:28,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:28,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-17 18:36:28,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-04-17 18:36:28,204 INFO L87 Difference]: Start difference. First operand 12246 states and 40941 transitions. Second operand 18 states. [2020-04-17 18:36:28,952 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-04-17 18:36:29,175 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-04-17 18:36:29,415 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-04-17 18:36:29,577 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-04-17 18:36:30,165 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2020-04-17 18:36:30,367 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2020-04-17 18:36:31,072 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2020-04-17 18:36:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:33,419 INFO L93 Difference]: Finished difference Result 17611 states and 58807 transitions. [2020-04-17 18:36:33,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-04-17 18:36:33,419 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2020-04-17 18:36:33,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:33,451 INFO L225 Difference]: With dead ends: 17611 [2020-04-17 18:36:33,451 INFO L226 Difference]: Without dead ends: 17611 [2020-04-17 18:36:33,452 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2020-04-17 18:36:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17611 states. [2020-04-17 18:36:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17611 to 12246. [2020-04-17 18:36:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12246 states. [2020-04-17 18:36:33,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12246 states to 12246 states and 40941 transitions. [2020-04-17 18:36:33,650 INFO L78 Accepts]: Start accepts. Automaton has 12246 states and 40941 transitions. Word has length 30 [2020-04-17 18:36:33,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:33,650 INFO L479 AbstractCegarLoop]: Abstraction has 12246 states and 40941 transitions. [2020-04-17 18:36:33,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-17 18:36:33,650 INFO L276 IsEmpty]: Start isEmpty. Operand 12246 states and 40941 transitions. [2020-04-17 18:36:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:33,666 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:33,666 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:33,667 INFO L427 AbstractCegarLoop]: === Iteration 32 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:33,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:33,667 INFO L82 PathProgramCache]: Analyzing trace with hash -2122653751, now seen corresponding path program 4 times [2020-04-17 18:36:33,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:33,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420144027] [2020-04-17 18:36:33,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:34,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420144027] [2020-04-17 18:36:34,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:34,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-17 18:36:34,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517577173] [2020-04-17 18:36:34,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-17 18:36:34,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:34,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-17 18:36:34,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-04-17 18:36:34,160 INFO L87 Difference]: Start difference. First operand 12246 states and 40941 transitions. Second operand 17 states. [2020-04-17 18:36:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:38,395 INFO L93 Difference]: Finished difference Result 17258 states and 57483 transitions. [2020-04-17 18:36:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-17 18:36:38,396 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2020-04-17 18:36:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:38,422 INFO L225 Difference]: With dead ends: 17258 [2020-04-17 18:36:38,423 INFO L226 Difference]: Without dead ends: 17258 [2020-04-17 18:36:38,423 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2020-04-17 18:36:38,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17258 states. [2020-04-17 18:36:38,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17258 to 12246. [2020-04-17 18:36:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12246 states. [2020-04-17 18:36:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12246 states to 12246 states and 40941 transitions. [2020-04-17 18:36:38,611 INFO L78 Accepts]: Start accepts. Automaton has 12246 states and 40941 transitions. Word has length 30 [2020-04-17 18:36:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:38,611 INFO L479 AbstractCegarLoop]: Abstraction has 12246 states and 40941 transitions. [2020-04-17 18:36:38,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-17 18:36:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 12246 states and 40941 transitions. [2020-04-17 18:36:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:38,621 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:38,621 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:38,622 INFO L427 AbstractCegarLoop]: === Iteration 33 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:38,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:38,622 INFO L82 PathProgramCache]: Analyzing trace with hash -980323325, now seen corresponding path program 5 times [2020-04-17 18:36:38,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:38,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901718254] [2020-04-17 18:36:38,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:39,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901718254] [2020-04-17 18:36:39,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:39,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-04-17 18:36:39,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561720732] [2020-04-17 18:36:39,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-17 18:36:39,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:39,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-17 18:36:39,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-04-17 18:36:39,418 INFO L87 Difference]: Start difference. First operand 12246 states and 40941 transitions. Second operand 18 states. [2020-04-17 18:36:40,090 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2020-04-17 18:36:40,307 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2020-04-17 18:36:40,711 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-04-17 18:36:41,217 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2020-04-17 18:36:43,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:43,273 INFO L93 Difference]: Finished difference Result 16231 states and 54137 transitions. [2020-04-17 18:36:43,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-17 18:36:43,273 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2020-04-17 18:36:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:43,299 INFO L225 Difference]: With dead ends: 16231 [2020-04-17 18:36:43,299 INFO L226 Difference]: Without dead ends: 16231 [2020-04-17 18:36:43,300 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2020-04-17 18:36:43,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16231 states. [2020-04-17 18:36:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16231 to 11434. [2020-04-17 18:36:43,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11434 states. [2020-04-17 18:36:43,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11434 states to 11434 states and 38467 transitions. [2020-04-17 18:36:43,611 INFO L78 Accepts]: Start accepts. Automaton has 11434 states and 38467 transitions. Word has length 30 [2020-04-17 18:36:43,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:43,611 INFO L479 AbstractCegarLoop]: Abstraction has 11434 states and 38467 transitions. [2020-04-17 18:36:43,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-17 18:36:43,612 INFO L276 IsEmpty]: Start isEmpty. Operand 11434 states and 38467 transitions. [2020-04-17 18:36:43,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-17 18:36:43,626 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:43,626 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:43,626 INFO L427 AbstractCegarLoop]: === Iteration 34 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:43,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:43,627 INFO L82 PathProgramCache]: Analyzing trace with hash 784664900, now seen corresponding path program 4 times [2020-04-17 18:36:43,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:43,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656593284] [2020-04-17 18:36:43,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:44,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656593284] [2020-04-17 18:36:44,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:44,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-17 18:36:44,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142668981] [2020-04-17 18:36:44,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-17 18:36:44,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:44,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-17 18:36:44,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2020-04-17 18:36:44,271 INFO L87 Difference]: Start difference. First operand 11434 states and 38467 transitions. Second operand 17 states. [2020-04-17 18:36:45,102 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2020-04-17 18:36:45,468 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-04-17 18:36:45,945 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-04-17 18:36:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:47,495 INFO L93 Difference]: Finished difference Result 15251 states and 51012 transitions. [2020-04-17 18:36:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-17 18:36:47,495 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2020-04-17 18:36:47,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:47,520 INFO L225 Difference]: With dead ends: 15251 [2020-04-17 18:36:47,520 INFO L226 Difference]: Without dead ends: 15251 [2020-04-17 18:36:47,520 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2020-04-17 18:36:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15251 states. [2020-04-17 18:36:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15251 to 10144. [2020-04-17 18:36:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10144 states. [2020-04-17 18:36:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10144 states to 10144 states and 34412 transitions. [2020-04-17 18:36:47,686 INFO L78 Accepts]: Start accepts. Automaton has 10144 states and 34412 transitions. Word has length 30 [2020-04-17 18:36:47,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:47,687 INFO L479 AbstractCegarLoop]: Abstraction has 10144 states and 34412 transitions. [2020-04-17 18:36:47,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-17 18:36:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 10144 states and 34412 transitions. [2020-04-17 18:36:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:36:47,696 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:47,697 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:47,697 INFO L427 AbstractCegarLoop]: === Iteration 35 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:47,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:47,697 INFO L82 PathProgramCache]: Analyzing trace with hash -838148739, now seen corresponding path program 1 times [2020-04-17 18:36:47,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:47,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933920549] [2020-04-17 18:36:47,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:36:48,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933920549] [2020-04-17 18:36:48,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:48,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-17 18:36:48,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020305105] [2020-04-17 18:36:48,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-17 18:36:48,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:48,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-17 18:36:48,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2020-04-17 18:36:48,658 INFO L87 Difference]: Start difference. First operand 10144 states and 34412 transitions. Second operand 18 states. [2020-04-17 18:36:49,379 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-04-17 18:36:49,523 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-04-17 18:36:49,874 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2020-04-17 18:36:50,042 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2020-04-17 18:36:50,184 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2020-04-17 18:36:50,561 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2020-04-17 18:36:50,735 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 52 [2020-04-17 18:36:51,153 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-04-17 18:36:51,340 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-04-17 18:36:51,527 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-04-17 18:36:51,980 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2020-04-17 18:36:52,194 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-04-17 18:36:52,638 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2020-04-17 18:36:52,854 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2020-04-17 18:36:53,757 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2020-04-17 18:36:54,013 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2020-04-17 18:36:54,173 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-04-17 18:36:54,486 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2020-04-17 18:36:54,671 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 51 [2020-04-17 18:36:54,847 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2020-04-17 18:36:55,115 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-04-17 18:36:55,345 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 58 [2020-04-17 18:36:55,555 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2020-04-17 18:36:55,932 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2020-04-17 18:36:56,178 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 60 [2020-04-17 18:36:56,382 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2020-04-17 18:36:56,613 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2020-04-17 18:36:56,882 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2020-04-17 18:36:57,125 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2020-04-17 18:36:57,457 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2020-04-17 18:36:57,820 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2020-04-17 18:36:58,171 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2020-04-17 18:36:58,474 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2020-04-17 18:36:58,936 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2020-04-17 18:36:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:59,171 INFO L93 Difference]: Finished difference Result 11134 states and 37402 transitions. [2020-04-17 18:36:59,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-04-17 18:36:59,171 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2020-04-17 18:36:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:59,189 INFO L225 Difference]: With dead ends: 11134 [2020-04-17 18:36:59,190 INFO L226 Difference]: Without dead ends: 11134 [2020-04-17 18:36:59,191 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1092, Invalid=2690, Unknown=0, NotChecked=0, Total=3782 [2020-04-17 18:36:59,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11134 states. [2020-04-17 18:36:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11134 to 10714. [2020-04-17 18:36:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10714 states. [2020-04-17 18:36:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10714 states to 10714 states and 36122 transitions. [2020-04-17 18:36:59,340 INFO L78 Accepts]: Start accepts. Automaton has 10714 states and 36122 transitions. Word has length 31 [2020-04-17 18:36:59,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:59,340 INFO L479 AbstractCegarLoop]: Abstraction has 10714 states and 36122 transitions. [2020-04-17 18:36:59,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-17 18:36:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand 10714 states and 36122 transitions. [2020-04-17 18:36:59,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:36:59,350 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:59,350 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:59,350 INFO L427 AbstractCegarLoop]: === Iteration 36 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:36:59,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:59,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1965024921, now seen corresponding path program 2 times [2020-04-17 18:36:59,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:59,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357610744] [2020-04-17 18:36:59,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:00,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357610744] [2020-04-17 18:37:00,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:00,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-17 18:37:00,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968176423] [2020-04-17 18:37:00,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:37:00,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:00,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:37:00,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:37:00,281 INFO L87 Difference]: Start difference. First operand 10714 states and 36122 transitions. Second operand 19 states. [2020-04-17 18:37:01,313 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-04-17 18:37:01,457 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-04-17 18:37:01,978 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-04-17 18:37:02,164 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-04-17 18:37:02,326 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-04-17 18:37:02,721 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2020-04-17 18:37:02,917 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2020-04-17 18:37:03,402 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-04-17 18:37:03,639 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2020-04-17 18:37:03,828 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-04-17 18:37:04,346 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2020-04-17 18:37:04,600 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2020-04-17 18:37:05,161 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2020-04-17 18:37:05,393 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2020-04-17 18:37:06,467 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2020-04-17 18:37:06,731 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2020-04-17 18:37:06,896 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-04-17 18:37:07,100 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2020-04-17 18:37:07,418 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 56 [2020-04-17 18:37:07,611 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 54 [2020-04-17 18:37:07,799 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2020-04-17 18:37:07,995 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-04-17 18:37:08,280 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2020-04-17 18:37:08,527 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-04-17 18:37:08,757 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2020-04-17 18:37:09,132 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2020-04-17 18:37:09,388 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2020-04-17 18:37:09,601 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2020-04-17 18:37:09,850 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2020-04-17 18:37:10,149 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2020-04-17 18:37:10,409 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2020-04-17 18:37:10,738 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2020-04-17 18:37:11,061 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2020-04-17 18:37:11,400 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2020-04-17 18:37:11,726 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2020-04-17 18:37:12,218 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2020-04-17 18:37:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:12,480 INFO L93 Difference]: Finished difference Result 11324 states and 37952 transitions. [2020-04-17 18:37:12,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-04-17 18:37:12,480 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-17 18:37:12,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:12,588 INFO L225 Difference]: With dead ends: 11324 [2020-04-17 18:37:12,588 INFO L226 Difference]: Without dead ends: 11324 [2020-04-17 18:37:12,589 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1274, Invalid=3418, Unknown=0, NotChecked=0, Total=4692 [2020-04-17 18:37:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11324 states. [2020-04-17 18:37:12,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11324 to 10754. [2020-04-17 18:37:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10754 states. [2020-04-17 18:37:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10754 states to 10754 states and 36242 transitions. [2020-04-17 18:37:12,730 INFO L78 Accepts]: Start accepts. Automaton has 10754 states and 36242 transitions. Word has length 31 [2020-04-17 18:37:12,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:12,730 INFO L479 AbstractCegarLoop]: Abstraction has 10754 states and 36242 transitions. [2020-04-17 18:37:12,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-17 18:37:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 10754 states and 36242 transitions. [2020-04-17 18:37:12,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:37:12,740 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:12,740 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:37:12,740 INFO L427 AbstractCegarLoop]: === Iteration 37 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:37:12,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:12,741 INFO L82 PathProgramCache]: Analyzing trace with hash 288220857, now seen corresponding path program 3 times [2020-04-17 18:37:12,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:12,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167877267] [2020-04-17 18:37:12,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:13,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167877267] [2020-04-17 18:37:13,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:13,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-17 18:37:13,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59449059] [2020-04-17 18:37:13,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-17 18:37:13,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:13,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-17 18:37:13,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2020-04-17 18:37:13,501 INFO L87 Difference]: Start difference. First operand 10754 states and 36242 transitions. Second operand 18 states. [2020-04-17 18:37:14,596 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-04-17 18:37:14,739 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-04-17 18:37:15,253 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-04-17 18:37:15,422 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2020-04-17 18:37:15,565 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-04-17 18:37:15,956 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-04-17 18:37:16,130 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:37:16,418 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-04-17 18:37:16,701 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2020-04-17 18:37:16,884 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2020-04-17 18:37:17,074 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-04-17 18:37:17,596 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-04-17 18:37:17,809 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2020-04-17 18:37:18,283 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2020-04-17 18:37:18,501 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-04-17 18:37:19,561 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2020-04-17 18:37:19,827 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-04-17 18:37:19,985 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-04-17 18:37:20,177 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-04-17 18:37:20,487 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-04-17 18:37:20,664 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-04-17 18:37:20,837 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-04-17 18:37:21,031 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-04-17 18:37:21,359 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2020-04-17 18:37:21,566 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2020-04-17 18:37:21,775 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-04-17 18:37:22,174 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-04-17 18:37:22,430 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2020-04-17 18:37:22,651 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-04-17 18:37:22,824 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-04-17 18:37:23,045 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2020-04-17 18:37:23,316 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2020-04-17 18:37:23,564 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2020-04-17 18:37:23,888 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2020-04-17 18:37:24,189 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2020-04-17 18:37:24,523 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2020-04-17 18:37:24,839 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2020-04-17 18:37:25,290 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2020-04-17 18:37:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:25,523 INFO L93 Difference]: Finished difference Result 11014 states and 37022 transitions. [2020-04-17 18:37:25,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-04-17 18:37:25,524 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2020-04-17 18:37:25,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:25,543 INFO L225 Difference]: With dead ends: 11014 [2020-04-17 18:37:25,543 INFO L226 Difference]: Without dead ends: 11014 [2020-04-17 18:37:25,545 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1338, Invalid=3492, Unknown=0, NotChecked=0, Total=4830 [2020-04-17 18:37:25,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11014 states. [2020-04-17 18:37:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11014 to 10814. [2020-04-17 18:37:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10814 states. [2020-04-17 18:37:25,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10814 states to 10814 states and 36442 transitions. [2020-04-17 18:37:25,693 INFO L78 Accepts]: Start accepts. Automaton has 10814 states and 36442 transitions. Word has length 31 [2020-04-17 18:37:25,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:25,693 INFO L479 AbstractCegarLoop]: Abstraction has 10814 states and 36442 transitions. [2020-04-17 18:37:25,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-17 18:37:25,694 INFO L276 IsEmpty]: Start isEmpty. Operand 10814 states and 36442 transitions. [2020-04-17 18:37:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:37:25,704 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:25,704 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:37:25,705 INFO L427 AbstractCegarLoop]: === Iteration 38 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:37:25,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:25,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1133622845, now seen corresponding path program 4 times [2020-04-17 18:37:25,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:25,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593674872] [2020-04-17 18:37:25,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:26,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:26,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593674872] [2020-04-17 18:37:26,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:26,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-17 18:37:26,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138893060] [2020-04-17 18:37:26,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:37:26,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:26,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:37:26,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:37:26,566 INFO L87 Difference]: Start difference. First operand 10814 states and 36442 transitions. Second operand 19 states. [2020-04-17 18:37:28,130 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-04-17 18:37:28,298 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-04-17 18:37:28,644 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-04-17 18:37:28,868 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:37:29,073 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2020-04-17 18:37:29,341 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-04-17 18:37:29,620 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:37:29,901 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-04-17 18:37:30,111 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2020-04-17 18:37:30,370 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-04-17 18:37:30,692 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2020-04-17 18:37:30,865 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-04-17 18:37:31,167 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-04-17 18:37:31,712 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-04-17 18:37:31,972 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-04-17 18:37:32,492 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2020-04-17 18:37:32,705 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2020-04-17 18:37:33,797 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2020-04-17 18:37:34,575 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2020-04-17 18:37:34,748 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2020-04-17 18:37:35,202 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2020-04-17 18:37:35,401 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2020-04-17 18:37:35,609 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-04-17 18:37:35,840 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-04-17 18:37:36,083 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2020-04-17 18:37:36,370 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-04-17 18:37:36,602 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 56 [2020-04-17 18:37:36,892 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-04-17 18:37:37,160 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2020-04-17 18:37:37,418 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2020-04-17 18:37:37,663 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-04-17 18:37:37,938 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-04-17 18:37:38,215 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-04-17 18:37:38,481 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2020-04-17 18:37:38,838 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2020-04-17 18:37:39,237 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-04-17 18:37:39,591 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2020-04-17 18:37:39,887 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 77 [2020-04-17 18:37:40,475 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2020-04-17 18:37:40,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:40,855 INFO L93 Difference]: Finished difference Result 13779 states and 45387 transitions. [2020-04-17 18:37:40,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-04-17 18:37:40,855 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-17 18:37:40,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:40,876 INFO L225 Difference]: With dead ends: 13779 [2020-04-17 18:37:40,876 INFO L226 Difference]: Without dead ends: 13779 [2020-04-17 18:37:40,878 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=1581, Invalid=4119, Unknown=0, NotChecked=0, Total=5700 [2020-04-17 18:37:40,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2020-04-17 18:37:41,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 11338. [2020-04-17 18:37:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11338 states. [2020-04-17 18:37:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11338 states to 11338 states and 38054 transitions. [2020-04-17 18:37:41,037 INFO L78 Accepts]: Start accepts. Automaton has 11338 states and 38054 transitions. Word has length 31 [2020-04-17 18:37:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:41,037 INFO L479 AbstractCegarLoop]: Abstraction has 11338 states and 38054 transitions. [2020-04-17 18:37:41,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-17 18:37:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 11338 states and 38054 transitions. [2020-04-17 18:37:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:37:41,048 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:41,048 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:37:41,048 INFO L427 AbstractCegarLoop]: === Iteration 39 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:37:41,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:41,048 INFO L82 PathProgramCache]: Analyzing trace with hash 344966205, now seen corresponding path program 5 times [2020-04-17 18:37:41,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:41,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494594508] [2020-04-17 18:37:41,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:41,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494594508] [2020-04-17 18:37:41,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:41,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-17 18:37:41,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477975185] [2020-04-17 18:37:41,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:37:41,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:41,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:37:41,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:37:41,872 INFO L87 Difference]: Start difference. First operand 11338 states and 38054 transitions. Second operand 19 states. [2020-04-17 18:37:44,082 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2020-04-17 18:37:44,268 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2020-04-17 18:37:44,430 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2020-04-17 18:37:44,668 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-04-17 18:37:44,950 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2020-04-17 18:37:45,087 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-04-17 18:37:45,319 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2020-04-17 18:37:45,611 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2020-04-17 18:37:45,906 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2020-04-17 18:37:46,096 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-04-17 18:37:46,393 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2020-04-17 18:37:46,702 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-04-17 18:37:47,104 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-04-17 18:37:47,378 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2020-04-17 18:37:47,938 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2020-04-17 18:37:48,239 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-17 18:37:49,197 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-04-17 18:37:49,942 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-04-17 18:37:50,103 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-04-17 18:37:50,559 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2020-04-17 18:37:50,744 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-04-17 18:37:50,926 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-04-17 18:37:51,139 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2020-04-17 18:37:51,391 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2020-04-17 18:37:51,667 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 54 [2020-04-17 18:37:51,888 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-04-17 18:37:52,147 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-04-17 18:37:52,416 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-04-17 18:37:52,672 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2020-04-17 18:37:52,890 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-04-17 18:37:53,164 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-04-17 18:37:53,433 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-04-17 18:37:53,685 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2020-04-17 18:37:53,962 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2020-04-17 18:37:54,233 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2020-04-17 18:37:54,531 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 63 [2020-04-17 18:37:54,911 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2020-04-17 18:37:55,204 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2020-04-17 18:37:55,747 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2020-04-17 18:37:56,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:56,078 INFO L93 Difference]: Finished difference Result 14291 states and 46985 transitions. [2020-04-17 18:37:56,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-04-17 18:37:56,078 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-17 18:37:56,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:56,099 INFO L225 Difference]: With dead ends: 14291 [2020-04-17 18:37:56,099 INFO L226 Difference]: Without dead ends: 14291 [2020-04-17 18:37:56,101 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1180 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1719, Invalid=4443, Unknown=0, NotChecked=0, Total=6162 [2020-04-17 18:37:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14291 states. [2020-04-17 18:37:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14291 to 11341. [2020-04-17 18:37:56,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11341 states. [2020-04-17 18:37:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11341 states to 11341 states and 38065 transitions. [2020-04-17 18:37:56,264 INFO L78 Accepts]: Start accepts. Automaton has 11341 states and 38065 transitions. Word has length 31 [2020-04-17 18:37:56,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:56,264 INFO L479 AbstractCegarLoop]: Abstraction has 11341 states and 38065 transitions. [2020-04-17 18:37:56,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-17 18:37:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 11341 states and 38065 transitions. [2020-04-17 18:37:56,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:37:56,275 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:56,275 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:37:56,275 INFO L427 AbstractCegarLoop]: === Iteration 40 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:37:56,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:56,275 INFO L82 PathProgramCache]: Analyzing trace with hash -205504873, now seen corresponding path program 6 times [2020-04-17 18:37:56,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:56,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598681790] [2020-04-17 18:37:56,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:57,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598681790] [2020-04-17 18:37:57,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:57,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-17 18:37:57,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890977227] [2020-04-17 18:37:57,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:37:57,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:57,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:37:57,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:37:57,224 INFO L87 Difference]: Start difference. First operand 11341 states and 38065 transitions. Second operand 19 states. [2020-04-17 18:37:57,464 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2020-04-17 18:37:59,005 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-04-17 18:37:59,739 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-04-17 18:37:59,891 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2020-04-17 18:38:00,076 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-04-17 18:38:00,225 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2020-04-17 18:38:00,396 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-04-17 18:38:00,952 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-04-17 18:38:01,091 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-04-17 18:38:01,247 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2020-04-17 18:38:01,465 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2020-04-17 18:38:02,323 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-04-17 18:38:02,527 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-04-17 18:38:02,750 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2020-04-17 18:38:02,993 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2020-04-17 18:38:03,185 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-04-17 18:38:03,359 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-04-17 18:38:03,969 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-04-17 18:38:04,202 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-04-17 18:38:04,390 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2020-04-17 18:38:04,616 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2020-04-17 18:38:04,815 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 54 [2020-04-17 18:38:05,528 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2020-04-17 18:38:05,747 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2020-04-17 18:38:06,011 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-04-17 18:38:06,819 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2020-04-17 18:38:07,647 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2020-04-17 18:38:07,984 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-04-17 18:38:08,832 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-04-17 18:38:08,999 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2020-04-17 18:38:09,510 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-04-17 18:38:09,699 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-04-17 18:38:09,886 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2020-04-17 18:38:10,282 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-04-17 18:38:10,584 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-04-17 18:38:10,817 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2020-04-17 18:38:11,243 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2020-04-17 18:38:11,514 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-04-17 18:38:11,733 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-04-17 18:38:11,905 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-04-17 18:38:12,211 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-04-17 18:38:12,505 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2020-04-17 18:38:12,768 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2020-04-17 18:38:12,983 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2020-04-17 18:38:13,357 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2020-04-17 18:38:13,683 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-04-17 18:38:13,956 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2020-04-17 18:38:14,384 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2020-04-17 18:38:14,699 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-04-17 18:38:14,997 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2020-04-17 18:38:15,612 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2020-04-17 18:38:15,954 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 76 [2020-04-17 18:38:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:38:16,332 INFO L93 Difference]: Finished difference Result 14397 states and 47211 transitions. [2020-04-17 18:38:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-04-17 18:38:16,332 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-17 18:38:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:38:16,356 INFO L225 Difference]: With dead ends: 14397 [2020-04-17 18:38:16,356 INFO L226 Difference]: Without dead ends: 14397 [2020-04-17 18:38:16,358 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1770 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=2169, Invalid=6573, Unknown=0, NotChecked=0, Total=8742 [2020-04-17 18:38:16,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14397 states. [2020-04-17 18:38:16,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14397 to 11773. [2020-04-17 18:38:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11773 states. [2020-04-17 18:38:16,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11773 states to 11773 states and 39363 transitions. [2020-04-17 18:38:16,533 INFO L78 Accepts]: Start accepts. Automaton has 11773 states and 39363 transitions. Word has length 31 [2020-04-17 18:38:16,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:38:16,533 INFO L479 AbstractCegarLoop]: Abstraction has 11773 states and 39363 transitions. [2020-04-17 18:38:16,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-17 18:38:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand 11773 states and 39363 transitions. [2020-04-17 18:38:16,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:38:16,545 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:38:16,545 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:38:16,545 INFO L427 AbstractCegarLoop]: === Iteration 41 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:38:16,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:38:16,546 INFO L82 PathProgramCache]: Analyzing trace with hash -863975519, now seen corresponding path program 7 times [2020-04-17 18:38:16,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:38:16,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837771600] [2020-04-17 18:38:16,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:38:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:38:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:38:17,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837771600] [2020-04-17 18:38:17,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:38:17,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-17 18:38:17,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43623038] [2020-04-17 18:38:17,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:38:17,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:38:17,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:38:17,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:38:17,420 INFO L87 Difference]: Start difference. First operand 11773 states and 39363 transitions. Second operand 19 states. [2020-04-17 18:38:17,992 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-04-17 18:38:19,128 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-04-17 18:38:19,295 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-04-17 18:38:19,701 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-04-17 18:38:20,114 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-04-17 18:38:20,288 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-04-17 18:38:20,945 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-04-17 18:38:21,374 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-04-17 18:38:21,577 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-04-17 18:38:21,780 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-04-17 18:38:22,145 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-04-17 18:38:22,745 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2020-04-17 18:38:23,231 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-04-17 18:38:23,459 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2020-04-17 18:38:23,787 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-04-17 18:38:24,091 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-04-17 18:38:24,340 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2020-04-17 18:38:24,668 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2020-04-17 18:38:24,969 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-04-17 18:38:25,212 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2020-04-17 18:38:25,478 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2020-04-17 18:38:25,698 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2020-04-17 18:38:25,989 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2020-04-17 18:38:26,236 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 76 [2020-04-17 18:38:26,512 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-04-17 18:38:26,774 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-04-17 18:38:27,122 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-04-17 18:38:27,395 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2020-04-17 18:38:27,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:38:27,671 INFO L93 Difference]: Finished difference Result 13133 states and 43453 transitions. [2020-04-17 18:38:27,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-04-17 18:38:27,671 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-17 18:38:27,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:38:27,694 INFO L225 Difference]: With dead ends: 13133 [2020-04-17 18:38:27,695 INFO L226 Difference]: Without dead ends: 13133 [2020-04-17 18:38:27,695 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=994, Invalid=2546, Unknown=0, NotChecked=0, Total=3540 [2020-04-17 18:38:27,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13133 states. [2020-04-17 18:38:27,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13133 to 11775. [2020-04-17 18:38:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11775 states. [2020-04-17 18:38:27,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11775 states to 11775 states and 39369 transitions. [2020-04-17 18:38:27,869 INFO L78 Accepts]: Start accepts. Automaton has 11775 states and 39369 transitions. Word has length 31 [2020-04-17 18:38:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:38:27,869 INFO L479 AbstractCegarLoop]: Abstraction has 11775 states and 39369 transitions. [2020-04-17 18:38:27,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-17 18:38:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 11775 states and 39369 transitions. [2020-04-17 18:38:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-17 18:38:27,881 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:38:27,881 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:38:27,881 INFO L427 AbstractCegarLoop]: === Iteration 42 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:38:27,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:38:27,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1652632159, now seen corresponding path program 8 times [2020-04-17 18:38:27,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:38:27,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696224938] [2020-04-17 18:38:27,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:38:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:38:28,288 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 24 [2020-04-17 18:38:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:38:28,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696224938] [2020-04-17 18:38:28,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:38:28,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-17 18:38:28,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663812127] [2020-04-17 18:38:28,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:38:28,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:38:28,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:38:28,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:38:28,838 INFO L87 Difference]: Start difference. First operand 11775 states and 39369 transitions. Second operand 19 states. [2020-04-17 18:38:30,947 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-04-17 18:38:31,596 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-17 18:38:31,870 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-04-17 18:38:32,080 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-04-17 18:38:32,481 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 Received shutdown request... [2020-04-17 18:38:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-04-17 18:38:32,710 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-17 18:38:32,713 WARN L228 ceAbstractionStarter]: Timeout [2020-04-17 18:38:32,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:38:32 BasicIcfg [2020-04-17 18:38:32,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:38:32,715 INFO L168 Benchmark]: Toolchain (without parser) took 244865.90 ms. Allocated memory was 135.8 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 98.1 MB in the beginning and 986.9 MB in the end (delta: -888.8 MB). Peak memory consumption was 868.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:38:32,715 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-17 18:38:32,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 930.75 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 96.1 MB in the beginning and 120.4 MB in the end (delta: -24.4 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2020-04-17 18:38:32,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 199.2 MB. Free memory was 120.4 MB in the beginning and 117.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:38:32,716 INFO L168 Benchmark]: Boogie Preprocessor took 41.53 ms. Allocated memory is still 199.2 MB. Free memory was 117.6 MB in the beginning and 114.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:38:32,717 INFO L168 Benchmark]: RCFGBuilder took 815.67 ms. Allocated memory was 199.2 MB in the beginning and 227.5 MB in the end (delta: 28.3 MB). Free memory was 114.7 MB in the beginning and 192.2 MB in the end (delta: -77.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2020-04-17 18:38:32,717 INFO L168 Benchmark]: TraceAbstraction took 242985.15 ms. Allocated memory was 227.5 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 192.2 MB in the beginning and 986.9 MB in the end (delta: -794.7 MB). Peak memory consumption was 870.5 MB. Max. memory is 7.1 GB. [2020-04-17 18:38:32,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 930.75 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 96.1 MB in the beginning and 120.4 MB in the end (delta: -24.4 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 199.2 MB. Free memory was 120.4 MB in the beginning and 117.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.53 ms. Allocated memory is still 199.2 MB. Free memory was 117.6 MB in the beginning and 114.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 815.67 ms. Allocated memory was 199.2 MB in the beginning and 227.5 MB in the end (delta: 28.3 MB). Free memory was 114.7 MB in the beginning and 192.2 MB in the end (delta: -77.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242985.15 ms. Allocated memory was 227.5 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 192.2 MB in the beginning and 986.9 MB in the end (delta: -794.7 MB). Peak memory consumption was 870.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.6s, 177 ProgramPointsBefore, 59 ProgramPointsAfterwards, 189 TransitionsBefore, 65 TransitionsAfterwards, 15102 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 31 ConcurrentYvCompositions, 6 ChoiceCompositions, 7595 VarBasedMoverChecksPositive, 197 VarBasedMoverChecksNegative, 118 SemBasedMoverChecksPositive, 118 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.0s, 0 MoverChecksTotal, 20924 CheckedPairsTotal, 153 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1049). Cancelled while BasicCegarLoop was constructing difference of abstraction (11775states) and FLOYD_HOARE automaton (currently 30 states, 19 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1054]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1054). Cancelled while BasicCegarLoop was constructing difference of abstraction (11775states) and FLOYD_HOARE automaton (currently 30 states, 19 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1053). Cancelled while BasicCegarLoop was constructing difference of abstraction (11775states) and FLOYD_HOARE automaton (currently 30 states, 19 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1050). Cancelled while BasicCegarLoop was constructing difference of abstraction (11775states) and FLOYD_HOARE automaton (currently 30 states, 19 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 242.7s, OverallIterations: 42, TraceHistogramMax: 1, AutomataDifference: 202.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 2915 SDtfs, 13314 SDslu, 13718 SDs, 0 SdLazy, 83574 SolverSat, 1560 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1473 GetRequests, 35 SyntacticMatches, 40 SemanticMatches, 1397 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10258 ImplicationChecksByTransitivity, 120.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12246occurred in iteration=30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 41 MinimizatonAttempts, 91999 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 27.9s InterpolantComputationTime, 1162 NumberOfCodeBlocks, 1162 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1120 ConstructedInterpolants, 0 QuantifiedInterpolants, 875433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 42 InterpolantComputations, 42 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown