/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 03:05:39,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 03:05:39,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 03:05:39,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 03:05:39,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 03:05:39,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 03:05:39,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 03:05:39,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 03:05:39,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 03:05:39,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 03:05:39,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 03:05:39,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 03:05:39,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 03:05:39,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 03:05:39,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 03:05:39,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 03:05:39,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 03:05:39,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 03:05:39,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 03:05:39,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 03:05:39,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 03:05:39,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 03:05:39,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 03:05:39,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 03:05:39,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 03:05:39,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 03:05:39,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 03:05:39,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 03:05:39,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 03:05:39,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 03:05:39,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 03:05:39,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 03:05:39,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 03:05:39,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 03:05:39,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 03:05:39,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 03:05:39,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 03:05:39,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 03:05:39,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 03:05:39,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 03:05:39,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 03:05:39,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2020-04-18 03:05:39,536 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 03:05:39,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 03:05:39,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 03:05:39,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 03:05:39,539 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 03:05:39,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 03:05:39,539 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 03:05:39,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 03:05:39,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 03:05:39,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 03:05:39,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 03:05:39,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 03:05:39,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 03:05:39,542 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 03:05:39,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 03:05:39,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 03:05:39,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 03:05:39,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 03:05:39,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 03:05:39,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 03:05:39,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 03:05:39,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 03:05:39,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 03:05:39,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 03:05:39,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 03:05:39,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 03:05:39,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 03:05:39,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 03:05:39,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 03:05:39,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 03:05:39,844 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 03:05:39,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 03:05:39,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 03:05:39,864 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 03:05:39,865 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 03:05:39,865 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i [2020-04-18 03:05:39,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0b1ab23/add0f01b0b704208924b476fec5b56c1/FLAG0802cfaa8 [2020-04-18 03:05:40,497 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 03:05:40,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i [2020-04-18 03:05:40,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0b1ab23/add0f01b0b704208924b476fec5b56c1/FLAG0802cfaa8 [2020-04-18 03:05:40,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0b1ab23/add0f01b0b704208924b476fec5b56c1 [2020-04-18 03:05:40,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 03:05:40,794 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 03:05:40,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 03:05:40,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 03:05:40,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 03:05:40,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:05:40" (1/1) ... [2020-04-18 03:05:40,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a9611c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:40, skipping insertion in model container [2020-04-18 03:05:40,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:05:40" (1/1) ... [2020-04-18 03:05:40,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 03:05:40,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 03:05:41,057 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-04-18 03:05:41,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 03:05:41,535 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 03:05:41,547 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-04-18 03:05:41,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 03:05:41,774 INFO L208 MainTranslator]: Completed translation [2020-04-18 03:05:41,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41 WrapperNode [2020-04-18 03:05:41,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 03:05:41,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 03:05:41,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 03:05:41,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 03:05:41,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 03:05:41,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 03:05:41,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 03:05:41,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 03:05:41,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (1/1) ... [2020-04-18 03:05:41,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 03:05:41,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 03:05:41,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 03:05:41,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 03:05:41,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (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 [2020-04-18 03:05:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2020-04-18 03:05:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2020-04-18 03:05:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2020-04-18 03:05:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2020-04-18 03:05:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 03:05:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 03:05:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 03:05:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 03:05:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 03:05:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 03:05:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 03:05:41,975 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 03:05:42,702 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 03:05:42,702 INFO L295 CfgBuilder]: Removed 22 assume(true) statements. [2020-04-18 03:05:42,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:05:42 BoogieIcfgContainer [2020-04-18 03:05:42,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 03:05:42,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 03:05:42,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 03:05:42,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 03:05:42,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:05:40" (1/3) ... [2020-04-18 03:05:42,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578f6b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:05:42, skipping insertion in model container [2020-04-18 03:05:42,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:05:41" (2/3) ... [2020-04-18 03:05:42,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578f6b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:05:42, skipping insertion in model container [2020-04-18 03:05:42,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:05:42" (3/3) ... [2020-04-18 03:05:42,724 INFO L109 eAbstractionObserver]: Analyzing ICFG ring_2w1r-2.i [2020-04-18 03:05:42,735 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 03:05:42,736 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 03:05:42,744 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-04-18 03:05:42,745 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 03:05:42,781 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,782 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,782 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,782 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,783 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,783 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,783 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,783 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,783 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,784 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,784 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,784 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,784 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,784 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,785 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,785 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,785 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,785 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,786 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,786 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,786 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,786 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,786 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,787 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,787 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,787 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,787 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,787 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,788 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,788 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,788 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,788 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,789 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,789 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,789 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,789 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,789 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,790 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,790 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,790 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,790 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,790 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,791 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,791 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,791 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,791 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,791 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,791 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,792 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,792 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,792 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,792 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,793 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,793 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,793 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,793 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,793 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,794 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,794 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,794 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,794 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,795 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,795 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,795 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,795 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,795 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,796 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,796 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,796 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,796 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,796 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,797 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,797 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,797 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,797 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,797 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,798 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,798 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,798 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,798 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,798 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,799 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,799 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,799 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,799 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,799 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,800 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,800 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,800 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,800 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,800 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,801 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,801 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,801 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,801 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,801 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,802 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,802 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,802 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,802 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,802 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,803 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,803 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,803 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,803 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,804 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,804 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,804 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,804 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,805 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,805 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,805 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,805 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,805 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,806 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,806 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,806 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,806 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,806 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,806 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,807 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,807 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,807 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,807 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,807 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,808 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,808 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,808 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,808 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,808 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,809 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,809 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,809 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,809 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,809 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,809 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,810 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,810 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,810 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,810 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,811 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,811 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,811 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,811 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,811 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,812 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,812 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,812 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,812 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,812 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,813 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,813 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,813 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,814 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,814 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,814 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,814 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,814 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,814 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,815 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,815 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,815 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,815 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,816 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,816 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,816 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,816 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,816 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,816 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,817 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,817 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,817 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,817 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,817 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,818 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,818 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,818 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,818 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,818 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,818 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,818 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,819 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,819 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,819 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,819 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,819 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,820 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,820 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,820 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,820 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,820 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,820 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,821 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,821 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,821 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,821 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,821 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,822 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,822 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,822 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,822 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,823 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,823 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,823 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,823 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,823 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,824 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,824 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,824 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,824 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,824 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,825 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,825 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,825 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,825 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,825 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,825 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,829 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,829 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,830 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,830 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,830 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,830 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,831 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,831 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,831 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,831 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,831 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,831 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,832 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,832 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,832 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,832 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,832 WARN L315 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork0_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,833 WARN L315 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork0_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,857 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,858 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,858 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,859 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,859 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,859 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,859 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,860 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,860 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,861 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,862 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,862 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,862 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,863 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,863 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,863 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,864 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,864 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,864 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,864 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#t~mem25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,865 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,866 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,867 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,867 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,867 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,867 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,867 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,867 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,868 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,868 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,868 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,868 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,868 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,869 WARN L315 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork1_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,869 WARN L315 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:05:42,890 INFO L251 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-04-18 03:05:42,915 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 03:05:42,916 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 03:05:42,916 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 03:05:42,916 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 03:05:42,916 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 03:05:42,916 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 03:05:42,916 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 03:05:42,916 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 03:05:42,937 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 189 transitions, 400 flow [2020-04-18 03:05:42,939 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 177 places, 189 transitions, 400 flow [2020-04-18 03:05:43,033 INFO L129 PetriNetUnfolder]: 18/189 cut-off events. [2020-04-18 03:05:43,034 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 03:05:43,042 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. [2020-04-18 03:05:43,055 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 177 places, 189 transitions, 400 flow [2020-04-18 03:05:43,114 INFO L129 PetriNetUnfolder]: 18/189 cut-off events. [2020-04-18 03:05:43,114 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 03:05:43,116 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. [2020-04-18 03:05:43,128 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 15102 [2020-04-18 03:05:43,129 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 03:05:46,253 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-04-18 03:05:46,689 INFO L206 etLargeBlockEncoding]: Checked pairs total: 20948 [2020-04-18 03:05:46,689 INFO L214 etLargeBlockEncoding]: Total number of compositions: 149 [2020-04-18 03:05:46,693 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 65 transitions, 152 flow [2020-04-18 03:05:46,804 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2182 states. [2020-04-18 03:05:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states. [2020-04-18 03:05:46,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 03:05:46,827 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:05:46,828 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:05:46,828 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]=== [2020-04-18 03:05:46,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:05:46,835 INFO L82 PathProgramCache]: Analyzing trace with hash -335056581, now seen corresponding path program 1 times [2020-04-18 03:05:46,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:05:46,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117220676] [2020-04-18 03:05:46,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:05:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:05:47,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:05:47,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117220676] [2020-04-18 03:05:47,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:05:47,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 03:05:47,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651367459] [2020-04-18 03:05:47,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 03:05:47,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:05:47,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 03:05:47,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 03:05:47,287 INFO L87 Difference]: Start difference. First operand 2182 states. Second operand 6 states. [2020-04-18 03:05:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:05:47,718 INFO L93 Difference]: Finished difference Result 2169 states and 6982 transitions. [2020-04-18 03:05:47,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 03:05:47,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-18 03:05:47,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:05:47,757 INFO L225 Difference]: With dead ends: 2169 [2020-04-18 03:05:47,758 INFO L226 Difference]: Without dead ends: 2053 [2020-04-18 03:05:47,759 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 [2020-04-18 03:05:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2020-04-18 03:05:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2053. [2020-04-18 03:05:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2053 states. [2020-04-18 03:05:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 6650 transitions. [2020-04-18 03:05:47,936 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 6650 transitions. Word has length 17 [2020-04-18 03:05:47,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:05:47,936 INFO L479 AbstractCegarLoop]: Abstraction has 2053 states and 6650 transitions. [2020-04-18 03:05:47,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 03:05:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 6650 transitions. [2020-04-18 03:05:47,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 03:05:47,940 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:05:47,940 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:05:47,940 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]=== [2020-04-18 03:05:47,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:05:47,941 INFO L82 PathProgramCache]: Analyzing trace with hash 297867655, now seen corresponding path program 1 times [2020-04-18 03:05:47,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:05:47,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612306424] [2020-04-18 03:05:47,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:05:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:05:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:05:48,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612306424] [2020-04-18 03:05:48,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:05:48,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 03:05:48,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286312963] [2020-04-18 03:05:48,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 03:05:48,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:05:48,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 03:05:48,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 03:05:48,148 INFO L87 Difference]: Start difference. First operand 2053 states and 6650 transitions. Second operand 7 states. [2020-04-18 03:05:48,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:05:48,885 INFO L93 Difference]: Finished difference Result 3627 states and 11998 transitions. [2020-04-18 03:05:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 03:05:48,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-04-18 03:05:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:05:48,926 INFO L225 Difference]: With dead ends: 3627 [2020-04-18 03:05:48,926 INFO L226 Difference]: Without dead ends: 3587 [2020-04-18 03:05:48,927 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 03:05:48,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2020-04-18 03:05:49,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 2596. [2020-04-18 03:05:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2596 states. [2020-04-18 03:05:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 8468 transitions. [2020-04-18 03:05:49,134 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 8468 transitions. Word has length 18 [2020-04-18 03:05:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:05:49,135 INFO L479 AbstractCegarLoop]: Abstraction has 2596 states and 8468 transitions. [2020-04-18 03:05:49,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 03:05:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 8468 transitions. [2020-04-18 03:05:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 03:05:49,139 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:05:49,139 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:05:49,139 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]=== [2020-04-18 03:05:49,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:05:49,140 INFO L82 PathProgramCache]: Analyzing trace with hash -100749885, now seen corresponding path program 2 times [2020-04-18 03:05:49,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:05:49,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540953555] [2020-04-18 03:05:49,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:05:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:05:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:05:49,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540953555] [2020-04-18 03:05:49,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:05:49,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 03:05:49,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635372046] [2020-04-18 03:05:49,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 03:05:49,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:05:49,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 03:05:49,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 03:05:49,357 INFO L87 Difference]: Start difference. First operand 2596 states and 8468 transitions. Second operand 7 states. [2020-04-18 03:05:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:05:49,842 INFO L93 Difference]: Finished difference Result 3131 states and 10150 transitions. [2020-04-18 03:05:49,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 03:05:49,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-04-18 03:05:49,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:05:49,868 INFO L225 Difference]: With dead ends: 3131 [2020-04-18 03:05:49,869 INFO L226 Difference]: Without dead ends: 3083 [2020-04-18 03:05:49,869 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-04-18 03:05:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3083 states. [2020-04-18 03:05:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3083 to 2544. [2020-04-18 03:05:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2544 states. [2020-04-18 03:05:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 8286 transitions. [2020-04-18 03:05:49,964 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 8286 transitions. Word has length 18 [2020-04-18 03:05:49,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:05:49,964 INFO L479 AbstractCegarLoop]: Abstraction has 2544 states and 8286 transitions. [2020-04-18 03:05:49,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 03:05:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 8286 transitions. [2020-04-18 03:05:49,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:05:49,970 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:05:49,970 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] [2020-04-18 03:05:49,970 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]=== [2020-04-18 03:05:49,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:05:49,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1794084954, now seen corresponding path program 1 times [2020-04-18 03:05:49,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:05:49,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021795364] [2020-04-18 03:05:49,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:05:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:05:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:05:50,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021795364] [2020-04-18 03:05:50,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:05:50,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 03:05:50,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66630239] [2020-04-18 03:05:50,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 03:05:50,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:05:50,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 03:05:50,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-04-18 03:05:50,596 INFO L87 Difference]: Start difference. First operand 2544 states and 8286 transitions. Second operand 12 states. [2020-04-18 03:05:51,937 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-04-18 03:05:52,143 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-04-18 03:05:52,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:05:52,357 INFO L93 Difference]: Finished difference Result 3094 states and 10016 transitions. [2020-04-18 03:05:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 03:05:52,358 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-04-18 03:05:52,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:05:52,382 INFO L225 Difference]: With dead ends: 3094 [2020-04-18 03:05:52,382 INFO L226 Difference]: Without dead ends: 3094 [2020-04-18 03:05:52,383 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2020-04-18 03:05:52,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2020-04-18 03:05:52,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3034. [2020-04-18 03:05:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3034 states. [2020-04-18 03:05:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 9886 transitions. [2020-04-18 03:05:52,482 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 9886 transitions. Word has length 25 [2020-04-18 03:05:52,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:05:52,484 INFO L479 AbstractCegarLoop]: Abstraction has 3034 states and 9886 transitions. [2020-04-18 03:05:52,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 03:05:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 9886 transitions. [2020-04-18 03:05:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:05:52,492 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:05:52,492 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] [2020-04-18 03:05:52,492 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]=== [2020-04-18 03:05:52,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:05:52,493 INFO L82 PathProgramCache]: Analyzing trace with hash 683365392, now seen corresponding path program 1 times [2020-04-18 03:05:52,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:05:52,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924320266] [2020-04-18 03:05:52,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:05:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:05:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:05:52,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924320266] [2020-04-18 03:05:52,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:05:52,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 03:05:53,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216727875] [2020-04-18 03:05:53,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:05:53,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:05:53,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:05:53,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:05:53,001 INFO L87 Difference]: Start difference. First operand 3034 states and 9886 transitions. Second operand 13 states. [2020-04-18 03:05:53,651 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2020-04-18 03:05:54,716 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-04-18 03:05:54,916 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-04-18 03:05:55,164 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2020-04-18 03:05:55,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:05:55,490 INFO L93 Difference]: Finished difference Result 3654 states and 11766 transitions. [2020-04-18 03:05:55,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 03:05:55,491 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-18 03:05:55,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:05:55,532 INFO L225 Difference]: With dead ends: 3654 [2020-04-18 03:05:55,533 INFO L226 Difference]: Without dead ends: 3654 [2020-04-18 03:05:55,533 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 [2020-04-18 03:05:55,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2020-04-18 03:05:55,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3594. [2020-04-18 03:05:55,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3594 states. [2020-04-18 03:05:55,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 11646 transitions. [2020-04-18 03:05:55,627 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 11646 transitions. Word has length 25 [2020-04-18 03:05:55,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:05:55,628 INFO L479 AbstractCegarLoop]: Abstraction has 3594 states and 11646 transitions. [2020-04-18 03:05:55,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:05:55,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 11646 transitions. [2020-04-18 03:05:55,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:05:55,636 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:05:55,636 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] [2020-04-18 03:05:55,638 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]=== [2020-04-18 03:05:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:05:55,638 INFO L82 PathProgramCache]: Analyzing trace with hash 557439904, now seen corresponding path program 2 times [2020-04-18 03:05:55,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:05:55,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962576701] [2020-04-18 03:05:55,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:05:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:05:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:05:56,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962576701] [2020-04-18 03:05:56,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:05:56,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 03:05:56,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378522506] [2020-04-18 03:05:56,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:05:56,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:05:56,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:05:56,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:05:56,188 INFO L87 Difference]: Start difference. First operand 3594 states and 11646 transitions. Second operand 13 states. [2020-04-18 03:05:59,297 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-04-18 03:05:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:05:59,682 INFO L93 Difference]: Finished difference Result 4574 states and 14569 transitions. [2020-04-18 03:05:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 03:05:59,683 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-18 03:05:59,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:05:59,698 INFO L225 Difference]: With dead ends: 4574 [2020-04-18 03:05:59,698 INFO L226 Difference]: Without dead ends: 4574 [2020-04-18 03:05:59,699 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=268, Invalid=602, Unknown=0, NotChecked=0, Total=870 [2020-04-18 03:05:59,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2020-04-18 03:05:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 3594. [2020-04-18 03:05:59,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3594 states. [2020-04-18 03:05:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 11569 transitions. [2020-04-18 03:05:59,881 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 11569 transitions. Word has length 25 [2020-04-18 03:05:59,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:05:59,881 INFO L479 AbstractCegarLoop]: Abstraction has 3594 states and 11569 transitions. [2020-04-18 03:05:59,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:05:59,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 11569 transitions. [2020-04-18 03:05:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:05:59,889 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:05:59,889 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] [2020-04-18 03:05:59,889 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]=== [2020-04-18 03:05:59,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:05:59,890 INFO L82 PathProgramCache]: Analyzing trace with hash -963117732, now seen corresponding path program 3 times [2020-04-18 03:05:59,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:05:59,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002158730] [2020-04-18 03:05:59,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:05:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:00,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002158730] [2020-04-18 03:06:00,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:00,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 03:06:00,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000340992] [2020-04-18 03:06:00,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:06:00,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:00,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:06:00,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:06:00,360 INFO L87 Difference]: Start difference. First operand 3594 states and 11569 transitions. Second operand 13 states. [2020-04-18 03:06:02,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:02,948 INFO L93 Difference]: Finished difference Result 4378 states and 13953 transitions. [2020-04-18 03:06:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 03:06:02,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-18 03:06:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:02,969 INFO L225 Difference]: With dead ends: 4378 [2020-04-18 03:06:02,969 INFO L226 Difference]: Without dead ends: 4378 [2020-04-18 03:06:02,970 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2020-04-18 03:06:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2020-04-18 03:06:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 3258. [2020-04-18 03:06:03,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3258 states. [2020-04-18 03:06:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 10453 transitions. [2020-04-18 03:06:03,080 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 10453 transitions. Word has length 25 [2020-04-18 03:06:03,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:03,082 INFO L479 AbstractCegarLoop]: Abstraction has 3258 states and 10453 transitions. [2020-04-18 03:06:03,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:06:03,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 10453 transitions. [2020-04-18 03:06:03,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:06:03,090 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:03,090 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] [2020-04-18 03:06:03,090 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]=== [2020-04-18 03:06:03,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:03,091 INFO L82 PathProgramCache]: Analyzing trace with hash -2139201454, now seen corresponding path program 2 times [2020-04-18 03:06:03,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:03,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9505052] [2020-04-18 03:06:03,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:03,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9505052] [2020-04-18 03:06:03,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:03,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 03:06:03,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859869979] [2020-04-18 03:06:03,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:06:03,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:03,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:06:03,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:06:03,580 INFO L87 Difference]: Start difference. First operand 3258 states and 10453 transitions. Second operand 13 states. [2020-04-18 03:06:05,556 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-04-18 03:06:05,924 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-04-18 03:06:06,132 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-04-18 03:06:06,411 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-04-18 03:06:06,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:06,764 INFO L93 Difference]: Finished difference Result 4358 states and 13703 transitions. [2020-04-18 03:06:06,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 03:06:06,764 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-18 03:06:06,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:06,778 INFO L225 Difference]: With dead ends: 4358 [2020-04-18 03:06:06,778 INFO L226 Difference]: Without dead ends: 4358 [2020-04-18 03:06:06,779 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=509, Unknown=0, NotChecked=0, Total=756 [2020-04-18 03:06:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2020-04-18 03:06:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 3188. [2020-04-18 03:06:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3188 states. [2020-04-18 03:06:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 10243 transitions. [2020-04-18 03:06:06,881 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 10243 transitions. Word has length 25 [2020-04-18 03:06:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:06,882 INFO L479 AbstractCegarLoop]: Abstraction has 3188 states and 10243 transitions. [2020-04-18 03:06:06,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:06:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 10243 transitions. [2020-04-18 03:06:06,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:06:06,890 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:06,890 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] [2020-04-18 03:06:06,891 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]=== [2020-04-18 03:06:06,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:06,891 INFO L82 PathProgramCache]: Analyzing trace with hash 822898226, now seen corresponding path program 3 times [2020-04-18 03:06:06,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:06,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853747480] [2020-04-18 03:06:06,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:07,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853747480] [2020-04-18 03:06:07,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:07,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 03:06:07,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343581541] [2020-04-18 03:06:07,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:06:07,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:07,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:06:07,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:06:07,410 INFO L87 Difference]: Start difference. First operand 3188 states and 10243 transitions. Second operand 13 states. [2020-04-18 03:06:09,777 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-04-18 03:06:09,968 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-04-18 03:06:10,238 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-04-18 03:06:10,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:10,568 INFO L93 Difference]: Finished difference Result 4158 states and 13103 transitions. [2020-04-18 03:06:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-04-18 03:06:10,569 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-18 03:06:10,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:10,577 INFO L225 Difference]: With dead ends: 4158 [2020-04-18 03:06:10,577 INFO L226 Difference]: Without dead ends: 4158 [2020-04-18 03:06:10,578 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=264, Invalid=548, Unknown=0, NotChecked=0, Total=812 [2020-04-18 03:06:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4158 states. [2020-04-18 03:06:10,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4158 to 3118. [2020-04-18 03:06:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3118 states. [2020-04-18 03:06:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 9973 transitions. [2020-04-18 03:06:10,668 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 9973 transitions. Word has length 25 [2020-04-18 03:06:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:10,669 INFO L479 AbstractCegarLoop]: Abstraction has 3118 states and 9973 transitions. [2020-04-18 03:06:10,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:06:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 9973 transitions. [2020-04-18 03:06:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:06:10,676 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:10,676 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] [2020-04-18 03:06:10,676 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]=== [2020-04-18 03:06:10,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:10,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1855082980, now seen corresponding path program 4 times [2020-04-18 03:06:10,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:10,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508404874] [2020-04-18 03:06:10,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:11,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508404874] [2020-04-18 03:06:11,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:11,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 03:06:11,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516128508] [2020-04-18 03:06:11,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:06:11,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:11,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:06:11,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:06:11,163 INFO L87 Difference]: Start difference. First operand 3118 states and 9973 transitions. Second operand 13 states. [2020-04-18 03:06:11,369 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2020-04-18 03:06:14,180 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2020-04-18 03:06:14,436 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-04-18 03:06:14,609 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-04-18 03:06:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:14,982 INFO L93 Difference]: Finished difference Result 4042 states and 12710 transitions. [2020-04-18 03:06:14,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 03:06:14,983 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-04-18 03:06:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:14,991 INFO L225 Difference]: With dead ends: 4042 [2020-04-18 03:06:14,992 INFO L226 Difference]: Without dead ends: 4042 [2020-04-18 03:06:14,992 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=304, Invalid=688, Unknown=0, NotChecked=0, Total=992 [2020-04-18 03:06:15,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2020-04-18 03:06:15,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 2852. [2020-04-18 03:06:15,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-04-18 03:06:15,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 9100 transitions. [2020-04-18 03:06:15,147 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 9100 transitions. Word has length 25 [2020-04-18 03:06:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:15,149 INFO L479 AbstractCegarLoop]: Abstraction has 2852 states and 9100 transitions. [2020-04-18 03:06:15,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:06:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 9100 transitions. [2020-04-18 03:06:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:15,156 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:15,156 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] [2020-04-18 03:06:15,156 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]=== [2020-04-18 03:06:15,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:15,157 INFO L82 PathProgramCache]: Analyzing trace with hash -753361541, now seen corresponding path program 1 times [2020-04-18 03:06:15,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:15,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261490955] [2020-04-18 03:06:15,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:15,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261490955] [2020-04-18 03:06:15,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:15,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 03:06:15,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666976091] [2020-04-18 03:06:15,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 03:06:15,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:15,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 03:06:15,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-04-18 03:06:15,834 INFO L87 Difference]: Start difference. First operand 2852 states and 9100 transitions. Second operand 15 states. [2020-04-18 03:06:17,057 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-04-18 03:06:18,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:18,334 INFO L93 Difference]: Finished difference Result 4947 states and 15922 transitions. [2020-04-18 03:06:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 03:06:18,335 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-18 03:06:18,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:18,343 INFO L225 Difference]: With dead ends: 4947 [2020-04-18 03:06:18,343 INFO L226 Difference]: Without dead ends: 4947 [2020-04-18 03:06:18,344 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 [2020-04-18 03:06:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4947 states. [2020-04-18 03:06:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4947 to 4032. [2020-04-18 03:06:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4032 states. [2020-04-18 03:06:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 12853 transitions. [2020-04-18 03:06:18,519 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 12853 transitions. Word has length 27 [2020-04-18 03:06:18,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:18,519 INFO L479 AbstractCegarLoop]: Abstraction has 4032 states and 12853 transitions. [2020-04-18 03:06:18,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 03:06:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 12853 transitions. [2020-04-18 03:06:18,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:18,528 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:18,528 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] [2020-04-18 03:06:18,528 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]=== [2020-04-18 03:06:18,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:18,529 INFO L82 PathProgramCache]: Analyzing trace with hash -798819684, now seen corresponding path program 1 times [2020-04-18 03:06:18,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:18,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62551020] [2020-04-18 03:06:18,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:19,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62551020] [2020-04-18 03:06:19,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:19,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:06:19,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851158806] [2020-04-18 03:06:19,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:06:19,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:19,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:06:19,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:06:19,242 INFO L87 Difference]: Start difference. First operand 4032 states and 12853 transitions. Second operand 16 states. [2020-04-18 03:06:19,658 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-04-18 03:06:20,626 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-18 03:06:20,883 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 03:06:22,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:22,364 INFO L93 Difference]: Finished difference Result 6137 states and 19825 transitions. [2020-04-18 03:06:22,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:06:22,364 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:06:22,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:22,374 INFO L225 Difference]: With dead ends: 6137 [2020-04-18 03:06:22,374 INFO L226 Difference]: Without dead ends: 6137 [2020-04-18 03:06:22,374 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 [2020-04-18 03:06:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6137 states. [2020-04-18 03:06:22,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6137 to 5222. [2020-04-18 03:06:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5222 states. [2020-04-18 03:06:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5222 states to 5222 states and 16711 transitions. [2020-04-18 03:06:22,581 INFO L78 Accepts]: Start accepts. Automaton has 5222 states and 16711 transitions. Word has length 27 [2020-04-18 03:06:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:22,581 INFO L479 AbstractCegarLoop]: Abstraction has 5222 states and 16711 transitions. [2020-04-18 03:06:22,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:06:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5222 states and 16711 transitions. [2020-04-18 03:06:22,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:22,594 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:22,595 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] [2020-04-18 03:06:22,595 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]=== [2020-04-18 03:06:22,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:22,596 INFO L82 PathProgramCache]: Analyzing trace with hash -798819683, now seen corresponding path program 1 times [2020-04-18 03:06:22,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:22,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934786905] [2020-04-18 03:06:22,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:23,160 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 32 [2020-04-18 03:06:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:23,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934786905] [2020-04-18 03:06:23,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:23,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:06:23,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886146970] [2020-04-18 03:06:23,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:06:23,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:23,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:06:23,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:06:23,390 INFO L87 Difference]: Start difference. First operand 5222 states and 16711 transitions. Second operand 16 states. [2020-04-18 03:06:24,806 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-04-18 03:06:25,100 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-18 03:06:26,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:26,666 INFO L93 Difference]: Finished difference Result 6137 states and 19705 transitions. [2020-04-18 03:06:26,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:06:26,666 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:06:26,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:26,780 INFO L225 Difference]: With dead ends: 6137 [2020-04-18 03:06:26,780 INFO L226 Difference]: Without dead ends: 6137 [2020-04-18 03:06:26,780 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 [2020-04-18 03:06:26,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6137 states. [2020-04-18 03:06:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6137 to 4620. [2020-04-18 03:06:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4620 states. [2020-04-18 03:06:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 14657 transitions. [2020-04-18 03:06:26,867 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 14657 transitions. Word has length 27 [2020-04-18 03:06:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:26,867 INFO L479 AbstractCegarLoop]: Abstraction has 4620 states and 14657 transitions. [2020-04-18 03:06:26,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:06:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 14657 transitions. [2020-04-18 03:06:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:26,875 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:26,875 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] [2020-04-18 03:06:26,876 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]=== [2020-04-18 03:06:26,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:26,876 INFO L82 PathProgramCache]: Analyzing trace with hash 536686401, now seen corresponding path program 2 times [2020-04-18 03:06:26,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:26,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051816122] [2020-04-18 03:06:26,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:27,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051816122] [2020-04-18 03:06:27,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:27,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:06:27,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64353435] [2020-04-18 03:06:27,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:06:27,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:27,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:06:27,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:06:27,608 INFO L87 Difference]: Start difference. First operand 4620 states and 14657 transitions. Second operand 16 states. [2020-04-18 03:06:30,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:30,854 INFO L93 Difference]: Finished difference Result 6649 states and 21401 transitions. [2020-04-18 03:06:30,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:06:30,854 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:06:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:30,864 INFO L225 Difference]: With dead ends: 6649 [2020-04-18 03:06:30,864 INFO L226 Difference]: Without dead ends: 6649 [2020-04-18 03:06:30,865 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2020-04-18 03:06:30,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2020-04-18 03:06:31,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 5664. [2020-04-18 03:06:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5664 states. [2020-04-18 03:06:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5664 states to 5664 states and 18077 transitions. [2020-04-18 03:06:31,113 INFO L78 Accepts]: Start accepts. Automaton has 5664 states and 18077 transitions. Word has length 27 [2020-04-18 03:06:31,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:31,113 INFO L479 AbstractCegarLoop]: Abstraction has 5664 states and 18077 transitions. [2020-04-18 03:06:31,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:06:31,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5664 states and 18077 transitions. [2020-04-18 03:06:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:31,123 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:31,123 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] [2020-04-18 03:06:31,123 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]=== [2020-04-18 03:06:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:31,124 INFO L82 PathProgramCache]: Analyzing trace with hash 536686402, now seen corresponding path program 1 times [2020-04-18 03:06:31,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:31,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649837940] [2020-04-18 03:06:31,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:31,665 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2020-04-18 03:06:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:31,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649837940] [2020-04-18 03:06:31,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:31,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:06:31,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695431293] [2020-04-18 03:06:31,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:06:31,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:31,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:06:31,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:06:31,891 INFO L87 Difference]: Start difference. First operand 5664 states and 18077 transitions. Second operand 16 states. [2020-04-18 03:06:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:35,103 INFO L93 Difference]: Finished difference Result 6649 states and 21281 transitions. [2020-04-18 03:06:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:06:35,103 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:06:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:35,114 INFO L225 Difference]: With dead ends: 6649 [2020-04-18 03:06:35,114 INFO L226 Difference]: Without dead ends: 6649 [2020-04-18 03:06:35,116 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 [2020-04-18 03:06:35,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2020-04-18 03:06:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 4554. [2020-04-18 03:06:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4554 states. [2020-04-18 03:06:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4554 states to 4554 states and 14459 transitions. [2020-04-18 03:06:35,196 INFO L78 Accepts]: Start accepts. Automaton has 4554 states and 14459 transitions. Word has length 27 [2020-04-18 03:06:35,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:35,197 INFO L479 AbstractCegarLoop]: Abstraction has 4554 states and 14459 transitions. [2020-04-18 03:06:35,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:06:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4554 states and 14459 transitions. [2020-04-18 03:06:35,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:35,203 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:35,203 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] [2020-04-18 03:06:35,203 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]=== [2020-04-18 03:06:35,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:35,204 INFO L82 PathProgramCache]: Analyzing trace with hash -430321155, now seen corresponding path program 3 times [2020-04-18 03:06:35,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:35,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063730685] [2020-04-18 03:06:35,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:35,437 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2020-04-18 03:06:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:35,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063730685] [2020-04-18 03:06:35,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:35,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 03:06:35,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897749095] [2020-04-18 03:06:35,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 03:06:35,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:35,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 03:06:35,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-18 03:06:35,995 INFO L87 Difference]: Start difference. First operand 4554 states and 14459 transitions. Second operand 15 states. [2020-04-18 03:06:38,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:38,772 INFO L93 Difference]: Finished difference Result 6369 states and 20451 transitions. [2020-04-18 03:06:38,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 03:06:38,772 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-18 03:06:38,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:38,782 INFO L225 Difference]: With dead ends: 6369 [2020-04-18 03:06:38,782 INFO L226 Difference]: Without dead ends: 6369 [2020-04-18 03:06:38,783 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2020-04-18 03:06:38,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6369 states. [2020-04-18 03:06:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6369 to 4554. [2020-04-18 03:06:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4554 states. [2020-04-18 03:06:38,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4554 states to 4554 states and 14459 transitions. [2020-04-18 03:06:38,870 INFO L78 Accepts]: Start accepts. Automaton has 4554 states and 14459 transitions. Word has length 27 [2020-04-18 03:06:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:38,870 INFO L479 AbstractCegarLoop]: Abstraction has 4554 states and 14459 transitions. [2020-04-18 03:06:38,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 03:06:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4554 states and 14459 transitions. [2020-04-18 03:06:38,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:38,875 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:38,875 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] [2020-04-18 03:06:38,876 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]=== [2020-04-18 03:06:38,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:38,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1215770469, now seen corresponding path program 4 times [2020-04-18 03:06:38,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:38,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554835762] [2020-04-18 03:06:38,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:39,317 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2020-04-18 03:06:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:39,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554835762] [2020-04-18 03:06:39,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:39,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 03:06:39,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995049012] [2020-04-18 03:06:39,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 03:06:39,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:39,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 03:06:39,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-18 03:06:39,581 INFO L87 Difference]: Start difference. First operand 4554 states and 14459 transitions. Second operand 15 states. [2020-04-18 03:06:42,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:42,849 INFO L93 Difference]: Finished difference Result 8387 states and 27219 transitions. [2020-04-18 03:06:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 03:06:42,849 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-18 03:06:42,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:42,862 INFO L225 Difference]: With dead ends: 8387 [2020-04-18 03:06:42,862 INFO L226 Difference]: Without dead ends: 8387 [2020-04-18 03:06:42,864 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 [2020-04-18 03:06:42,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8387 states. [2020-04-18 03:06:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8387 to 5289. [2020-04-18 03:06:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5289 states. [2020-04-18 03:06:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 16942 transitions. [2020-04-18 03:06:42,970 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 16942 transitions. Word has length 27 [2020-04-18 03:06:42,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:42,971 INFO L479 AbstractCegarLoop]: Abstraction has 5289 states and 16942 transitions. [2020-04-18 03:06:42,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 03:06:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 16942 transitions. [2020-04-18 03:06:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:42,977 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:42,977 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] [2020-04-18 03:06:42,977 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]=== [2020-04-18 03:06:42,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:42,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1215770468, now seen corresponding path program 2 times [2020-04-18 03:06:42,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:42,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265921277] [2020-04-18 03:06:42,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:43,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265921277] [2020-04-18 03:06:43,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:43,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 03:06:43,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344039303] [2020-04-18 03:06:43,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 03:06:43,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:43,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 03:06:43,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-18 03:06:43,563 INFO L87 Difference]: Start difference. First operand 5289 states and 16942 transitions. Second operand 15 states. [2020-04-18 03:06:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:46,824 INFO L93 Difference]: Finished difference Result 8312 states and 26935 transitions. [2020-04-18 03:06:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 03:06:46,825 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-18 03:06:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:46,838 INFO L225 Difference]: With dead ends: 8312 [2020-04-18 03:06:46,838 INFO L226 Difference]: Without dead ends: 8312 [2020-04-18 03:06:46,839 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2020-04-18 03:06:46,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8312 states. [2020-04-18 03:06:46,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8312 to 4599. [2020-04-18 03:06:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4599 states. [2020-04-18 03:06:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 14604 transitions. [2020-04-18 03:06:46,920 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 14604 transitions. Word has length 27 [2020-04-18 03:06:46,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:46,920 INFO L479 AbstractCegarLoop]: Abstraction has 4599 states and 14604 transitions. [2020-04-18 03:06:46,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 03:06:46,920 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 14604 transitions. [2020-04-18 03:06:46,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:46,925 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:46,925 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] [2020-04-18 03:06:46,925 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]=== [2020-04-18 03:06:46,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:46,926 INFO L82 PathProgramCache]: Analyzing trace with hash 111879065, now seen corresponding path program 5 times [2020-04-18 03:06:46,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:46,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946914217] [2020-04-18 03:06:46,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:47,340 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 35 [2020-04-18 03:06:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:47,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946914217] [2020-04-18 03:06:47,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:47,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 03:06:47,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821236330] [2020-04-18 03:06:47,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 03:06:47,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:47,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 03:06:47,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-18 03:06:47,743 INFO L87 Difference]: Start difference. First operand 4599 states and 14604 transitions. Second operand 15 states. [2020-04-18 03:06:50,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:50,536 INFO L93 Difference]: Finished difference Result 6414 states and 20586 transitions. [2020-04-18 03:06:50,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 03:06:50,537 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-18 03:06:50,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:50,547 INFO L225 Difference]: With dead ends: 6414 [2020-04-18 03:06:50,547 INFO L226 Difference]: Without dead ends: 6414 [2020-04-18 03:06:50,548 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-04-18 03:06:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2020-04-18 03:06:50,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 4599. [2020-04-18 03:06:50,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4599 states. [2020-04-18 03:06:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 14604 transitions. [2020-04-18 03:06:50,715 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 14604 transitions. Word has length 27 [2020-04-18 03:06:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:50,715 INFO L479 AbstractCegarLoop]: Abstraction has 4599 states and 14604 transitions. [2020-04-18 03:06:50,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 03:06:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 14604 transitions. [2020-04-18 03:06:50,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:50,720 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:50,721 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] [2020-04-18 03:06:50,721 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]=== [2020-04-18 03:06:50,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:50,721 INFO L82 PathProgramCache]: Analyzing trace with hash 749167323, now seen corresponding path program 6 times [2020-04-18 03:06:50,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:50,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2251064] [2020-04-18 03:06:50,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:51,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2251064] [2020-04-18 03:06:51,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:51,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 03:06:51,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864923381] [2020-04-18 03:06:51,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 03:06:51,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:51,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 03:06:51,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-04-18 03:06:51,423 INFO L87 Difference]: Start difference. First operand 4599 states and 14604 transitions. Second operand 15 states. [2020-04-18 03:06:54,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:54,328 INFO L93 Difference]: Finished difference Result 6484 states and 20776 transitions. [2020-04-18 03:06:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 03:06:54,328 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-04-18 03:06:54,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:54,339 INFO L225 Difference]: With dead ends: 6484 [2020-04-18 03:06:54,339 INFO L226 Difference]: Without dead ends: 6484 [2020-04-18 03:06:54,340 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2020-04-18 03:06:54,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6484 states. [2020-04-18 03:06:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6484 to 4109. [2020-04-18 03:06:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4109 states. [2020-04-18 03:06:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4109 states to 4109 states and 13114 transitions. [2020-04-18 03:06:54,408 INFO L78 Accepts]: Start accepts. Automaton has 4109 states and 13114 transitions. Word has length 27 [2020-04-18 03:06:54,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:54,408 INFO L479 AbstractCegarLoop]: Abstraction has 4109 states and 13114 transitions. [2020-04-18 03:06:54,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 03:06:54,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4109 states and 13114 transitions. [2020-04-18 03:06:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:54,412 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:54,412 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] [2020-04-18 03:06:54,413 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]=== [2020-04-18 03:06:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:54,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1133772382, now seen corresponding path program 2 times [2020-04-18 03:06:54,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:54,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834356696] [2020-04-18 03:06:54,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:55,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:55,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834356696] [2020-04-18 03:06:55,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:55,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:06:55,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522321007] [2020-04-18 03:06:55,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:06:55,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:55,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:06:55,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:06:55,113 INFO L87 Difference]: Start difference. First operand 4109 states and 13114 transitions. Second operand 16 states. [2020-04-18 03:06:56,610 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-18 03:06:56,930 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 03:06:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:06:58,632 INFO L93 Difference]: Finished difference Result 6154 states and 19906 transitions. [2020-04-18 03:06:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:06:58,632 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:06:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:06:58,642 INFO L225 Difference]: With dead ends: 6154 [2020-04-18 03:06:58,642 INFO L226 Difference]: Without dead ends: 6154 [2020-04-18 03:06:58,643 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 [2020-04-18 03:06:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2020-04-18 03:06:58,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 5239. [2020-04-18 03:06:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5239 states. [2020-04-18 03:06:58,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 16792 transitions. [2020-04-18 03:06:58,719 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 16792 transitions. Word has length 27 [2020-04-18 03:06:58,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:06:58,719 INFO L479 AbstractCegarLoop]: Abstraction has 5239 states and 16792 transitions. [2020-04-18 03:06:58,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:06:58,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 16792 transitions. [2020-04-18 03:06:58,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:06:58,726 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:06:58,726 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] [2020-04-18 03:06:58,726 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]=== [2020-04-18 03:06:58,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:06:58,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1133772383, now seen corresponding path program 2 times [2020-04-18 03:06:58,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:06:58,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815003767] [2020-04-18 03:06:58,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:06:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:06:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:06:59,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815003767] [2020-04-18 03:06:59,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:06:59,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:06:59,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722393480] [2020-04-18 03:06:59,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:06:59,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:06:59,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:06:59,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:06:59,426 INFO L87 Difference]: Start difference. First operand 5239 states and 16792 transitions. Second operand 16 states. [2020-04-18 03:07:00,712 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-04-18 03:07:01,003 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 03:07:02,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:02,827 INFO L93 Difference]: Finished difference Result 6154 states and 19786 transitions. [2020-04-18 03:07:02,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:07:02,827 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:02,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:02,837 INFO L225 Difference]: With dead ends: 6154 [2020-04-18 03:07:02,837 INFO L226 Difference]: Without dead ends: 6154 [2020-04-18 03:07:02,837 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 [2020-04-18 03:07:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2020-04-18 03:07:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 4049. [2020-04-18 03:07:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4049 states. [2020-04-18 03:07:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4049 states to 4049 states and 12934 transitions. [2020-04-18 03:07:02,900 INFO L78 Accepts]: Start accepts. Automaton has 4049 states and 12934 transitions. Word has length 27 [2020-04-18 03:07:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:02,900 INFO L479 AbstractCegarLoop]: Abstraction has 4049 states and 12934 transitions. [2020-04-18 03:07:02,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4049 states and 12934 transitions. [2020-04-18 03:07:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:02,905 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:02,905 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] [2020-04-18 03:07:02,905 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]=== [2020-04-18 03:07:02,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:02,905 INFO L82 PathProgramCache]: Analyzing trace with hash 148247614, now seen corresponding path program 3 times [2020-04-18 03:07:02,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:02,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513516631] [2020-04-18 03:07:02,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:03,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513516631] [2020-04-18 03:07:03,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:03,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:03,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927962773] [2020-04-18 03:07:03,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:03,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:03,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:03,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:03,583 INFO L87 Difference]: Start difference. First operand 4049 states and 12934 transitions. Second operand 16 states. [2020-04-18 03:07:05,009 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-18 03:07:05,336 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 03:07:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:07,019 INFO L93 Difference]: Finished difference Result 5968 states and 19348 transitions. [2020-04-18 03:07:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:07:07,020 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:07,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:07,030 INFO L225 Difference]: With dead ends: 5968 [2020-04-18 03:07:07,030 INFO L226 Difference]: Without dead ends: 5968 [2020-04-18 03:07:07,030 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 [2020-04-18 03:07:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2020-04-18 03:07:07,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 5053. [2020-04-18 03:07:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5053 states. [2020-04-18 03:07:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 16234 transitions. [2020-04-18 03:07:07,102 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 16234 transitions. Word has length 27 [2020-04-18 03:07:07,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:07,103 INFO L479 AbstractCegarLoop]: Abstraction has 5053 states and 16234 transitions. [2020-04-18 03:07:07,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 16234 transitions. [2020-04-18 03:07:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:07,109 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:07,109 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] [2020-04-18 03:07:07,110 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]=== [2020-04-18 03:07:07,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:07,110 INFO L82 PathProgramCache]: Analyzing trace with hash 148247615, now seen corresponding path program 3 times [2020-04-18 03:07:07,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:07,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629709852] [2020-04-18 03:07:07,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:07,662 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2020-04-18 03:07:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:07,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629709852] [2020-04-18 03:07:07,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:07,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:07,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410776377] [2020-04-18 03:07:07,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:07,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:07,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:07,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:07,969 INFO L87 Difference]: Start difference. First operand 5053 states and 16234 transitions. Second operand 16 states. [2020-04-18 03:07:09,116 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2020-04-18 03:07:09,420 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-04-18 03:07:09,792 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 03:07:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:11,497 INFO L93 Difference]: Finished difference Result 5968 states and 19228 transitions. [2020-04-18 03:07:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:07:11,497 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:11,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:11,507 INFO L225 Difference]: With dead ends: 5968 [2020-04-18 03:07:11,508 INFO L226 Difference]: Without dead ends: 5968 [2020-04-18 03:07:11,508 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2020-04-18 03:07:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2020-04-18 03:07:11,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3923. [2020-04-18 03:07:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3923 states. [2020-04-18 03:07:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 12556 transitions. [2020-04-18 03:07:11,576 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 12556 transitions. Word has length 27 [2020-04-18 03:07:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:11,576 INFO L479 AbstractCegarLoop]: Abstraction has 3923 states and 12556 transitions. [2020-04-18 03:07:11,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 12556 transitions. [2020-04-18 03:07:11,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:11,580 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:11,580 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] [2020-04-18 03:07:11,580 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]=== [2020-04-18 03:07:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:11,581 INFO L82 PathProgramCache]: Analyzing trace with hash -59649168, now seen corresponding path program 4 times [2020-04-18 03:07:11,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:11,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773970458] [2020-04-18 03:07:11,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:12,109 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 29 [2020-04-18 03:07:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:12,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773970458] [2020-04-18 03:07:12,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:12,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:12,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911549782] [2020-04-18 03:07:12,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:12,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:12,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:12,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:12,325 INFO L87 Difference]: Start difference. First operand 3923 states and 12556 transitions. Second operand 16 states. [2020-04-18 03:07:13,622 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2020-04-18 03:07:13,912 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-04-18 03:07:15,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:15,642 INFO L93 Difference]: Finished difference Result 5798 states and 18728 transitions. [2020-04-18 03:07:15,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:07:15,642 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:15,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:15,652 INFO L225 Difference]: With dead ends: 5798 [2020-04-18 03:07:15,652 INFO L226 Difference]: Without dead ends: 5798 [2020-04-18 03:07:15,652 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2020-04-18 03:07:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5798 states. [2020-04-18 03:07:15,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5798 to 3923. [2020-04-18 03:07:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3923 states. [2020-04-18 03:07:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 12556 transitions. [2020-04-18 03:07:15,712 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 12556 transitions. Word has length 27 [2020-04-18 03:07:15,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:15,712 INFO L479 AbstractCegarLoop]: Abstraction has 3923 states and 12556 transitions. [2020-04-18 03:07:15,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:15,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 12556 transitions. [2020-04-18 03:07:15,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:15,716 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:15,716 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] [2020-04-18 03:07:15,716 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]=== [2020-04-18 03:07:15,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:15,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1875030286, now seen corresponding path program 5 times [2020-04-18 03:07:15,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:15,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963140980] [2020-04-18 03:07:15,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:16,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963140980] [2020-04-18 03:07:16,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:16,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:16,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942107285] [2020-04-18 03:07:16,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:16,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:16,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:16,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:16,451 INFO L87 Difference]: Start difference. First operand 3923 states and 12556 transitions. Second operand 16 states. [2020-04-18 03:07:17,603 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-18 03:07:17,962 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 03:07:19,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:19,665 INFO L93 Difference]: Finished difference Result 5738 states and 18668 transitions. [2020-04-18 03:07:19,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 03:07:19,665 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:19,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:19,674 INFO L225 Difference]: With dead ends: 5738 [2020-04-18 03:07:19,674 INFO L226 Difference]: Without dead ends: 5738 [2020-04-18 03:07:19,674 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 [2020-04-18 03:07:19,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5738 states. [2020-04-18 03:07:19,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5738 to 4753. [2020-04-18 03:07:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4753 states. [2020-04-18 03:07:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4753 states to 4753 states and 15334 transitions. [2020-04-18 03:07:19,753 INFO L78 Accepts]: Start accepts. Automaton has 4753 states and 15334 transitions. Word has length 27 [2020-04-18 03:07:19,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:19,753 INFO L479 AbstractCegarLoop]: Abstraction has 4753 states and 15334 transitions. [2020-04-18 03:07:19,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:19,754 INFO L276 IsEmpty]: Start isEmpty. Operand 4753 states and 15334 transitions. [2020-04-18 03:07:19,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:19,758 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:19,758 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] [2020-04-18 03:07:19,758 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]=== [2020-04-18 03:07:19,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:19,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1875030287, now seen corresponding path program 4 times [2020-04-18 03:07:19,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:19,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325033492] [2020-04-18 03:07:19,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:20,185 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 35 [2020-04-18 03:07:20,466 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2020-04-18 03:07:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:20,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325033492] [2020-04-18 03:07:20,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:20,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:20,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646970326] [2020-04-18 03:07:20,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:20,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:20,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:20,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:20,545 INFO L87 Difference]: Start difference. First operand 4753 states and 15334 transitions. Second operand 16 states. [2020-04-18 03:07:21,789 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-04-18 03:07:22,156 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-18 03:07:24,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:24,046 INFO L93 Difference]: Finished difference Result 5738 states and 18548 transitions. [2020-04-18 03:07:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 03:07:24,046 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:24,056 INFO L225 Difference]: With dead ends: 5738 [2020-04-18 03:07:24,056 INFO L226 Difference]: Without dead ends: 5738 [2020-04-18 03:07:24,057 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 [2020-04-18 03:07:24,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5738 states. [2020-04-18 03:07:24,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5738 to 3923. [2020-04-18 03:07:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3923 states. [2020-04-18 03:07:24,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 12556 transitions. [2020-04-18 03:07:24,120 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 12556 transitions. Word has length 27 [2020-04-18 03:07:24,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:24,120 INFO L479 AbstractCegarLoop]: Abstraction has 3923 states and 12556 transitions. [2020-04-18 03:07:24,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 12556 transitions. [2020-04-18 03:07:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:24,123 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:24,123 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] [2020-04-18 03:07:24,123 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]=== [2020-04-18 03:07:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:24,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1352221194, now seen corresponding path program 6 times [2020-04-18 03:07:24,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:24,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877538554] [2020-04-18 03:07:24,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:24,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877538554] [2020-04-18 03:07:24,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:24,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:24,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825825817] [2020-04-18 03:07:24,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:24,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:24,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:24,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:24,750 INFO L87 Difference]: Start difference. First operand 3923 states and 12556 transitions. Second operand 16 states. [2020-04-18 03:07:25,998 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-04-18 03:07:26,393 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-18 03:07:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:28,638 INFO L93 Difference]: Finished difference Result 7681 states and 25152 transitions. [2020-04-18 03:07:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 03:07:28,639 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:28,654 INFO L225 Difference]: With dead ends: 7681 [2020-04-18 03:07:28,654 INFO L226 Difference]: Without dead ends: 7681 [2020-04-18 03:07:28,654 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 [2020-04-18 03:07:28,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7681 states. [2020-04-18 03:07:28,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7681 to 4658. [2020-04-18 03:07:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4658 states. [2020-04-18 03:07:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 15039 transitions. [2020-04-18 03:07:28,743 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 15039 transitions. Word has length 27 [2020-04-18 03:07:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:28,743 INFO L479 AbstractCegarLoop]: Abstraction has 4658 states and 15039 transitions. [2020-04-18 03:07:28,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 15039 transitions. [2020-04-18 03:07:28,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:28,747 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:28,747 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] [2020-04-18 03:07:28,748 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]=== [2020-04-18 03:07:28,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:28,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1352221193, now seen corresponding path program 5 times [2020-04-18 03:07:28,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:28,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640126097] [2020-04-18 03:07:28,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:29,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640126097] [2020-04-18 03:07:29,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:29,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:29,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433838884] [2020-04-18 03:07:29,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:29,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:29,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:29,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:29,395 INFO L87 Difference]: Start difference. First operand 4658 states and 15039 transitions. Second operand 16 states. [2020-04-18 03:07:30,433 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2020-04-18 03:07:30,688 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-04-18 03:07:31,088 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-18 03:07:33,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:33,226 INFO L93 Difference]: Finished difference Result 7681 states and 25032 transitions. [2020-04-18 03:07:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 03:07:33,226 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:33,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:33,238 INFO L225 Difference]: With dead ends: 7681 [2020-04-18 03:07:33,238 INFO L226 Difference]: Without dead ends: 7681 [2020-04-18 03:07:33,239 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-04-18 03:07:33,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7681 states. [2020-04-18 03:07:33,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7681 to 3929. [2020-04-18 03:07:33,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3929 states. [2020-04-18 03:07:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3929 states to 3929 states and 12575 transitions. [2020-04-18 03:07:33,306 INFO L78 Accepts]: Start accepts. Automaton has 3929 states and 12575 transitions. Word has length 27 [2020-04-18 03:07:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:33,306 INFO L479 AbstractCegarLoop]: Abstraction has 3929 states and 12575 transitions. [2020-04-18 03:07:33,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3929 states and 12575 transitions. [2020-04-18 03:07:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 03:07:33,309 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:33,309 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] [2020-04-18 03:07:33,309 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]=== [2020-04-18 03:07:33,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:33,309 INFO L82 PathProgramCache]: Analyzing trace with hash 309537078, now seen corresponding path program 7 times [2020-04-18 03:07:33,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:33,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189045953] [2020-04-18 03:07:33,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:33,756 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 29 [2020-04-18 03:07:33,964 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-04-18 03:07:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:34,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189045953] [2020-04-18 03:07:34,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:34,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 03:07:34,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167405574] [2020-04-18 03:07:34,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 03:07:34,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:34,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 03:07:34,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-04-18 03:07:34,037 INFO L87 Difference]: Start difference. First operand 3929 states and 12575 transitions. Second operand 16 states. [2020-04-18 03:07:35,992 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-04-18 03:07:37,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:37,869 INFO L93 Difference]: Finished difference Result 5594 states and 18087 transitions. [2020-04-18 03:07:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 03:07:37,869 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-04-18 03:07:37,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:37,878 INFO L225 Difference]: With dead ends: 5594 [2020-04-18 03:07:37,878 INFO L226 Difference]: Without dead ends: 5594 [2020-04-18 03:07:37,879 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2020-04-18 03:07:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2020-04-18 03:07:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 3549. [2020-04-18 03:07:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2020-04-18 03:07:37,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 11415 transitions. [2020-04-18 03:07:37,945 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 11415 transitions. Word has length 27 [2020-04-18 03:07:37,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:37,945 INFO L479 AbstractCegarLoop]: Abstraction has 3549 states and 11415 transitions. [2020-04-18 03:07:37,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 03:07:37,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 11415 transitions. [2020-04-18 03:07:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 03:07:37,949 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:37,949 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] [2020-04-18 03:07:37,949 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]=== [2020-04-18 03:07:37,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:37,949 INFO L82 PathProgramCache]: Analyzing trace with hash 2105467465, now seen corresponding path program 1 times [2020-04-18 03:07:37,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:37,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462591451] [2020-04-18 03:07:37,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:38,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462591451] [2020-04-18 03:07:38,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:38,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 03:07:38,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851008823] [2020-04-18 03:07:38,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:07:38,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:38,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:07:38,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:07:38,281 INFO L87 Difference]: Start difference. First operand 3549 states and 11415 transitions. Second operand 13 states. [2020-04-18 03:07:40,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:40,069 INFO L93 Difference]: Finished difference Result 10070 states and 32631 transitions. [2020-04-18 03:07:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 03:07:40,070 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-04-18 03:07:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:40,086 INFO L225 Difference]: With dead ends: 10070 [2020-04-18 03:07:40,087 INFO L226 Difference]: Without dead ends: 10070 [2020-04-18 03:07:40,087 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-04-18 03:07:40,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10070 states. [2020-04-18 03:07:40,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10070 to 7760. [2020-04-18 03:07:40,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7760 states. [2020-04-18 03:07:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 25794 transitions. [2020-04-18 03:07:40,206 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 25794 transitions. Word has length 30 [2020-04-18 03:07:40,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:40,206 INFO L479 AbstractCegarLoop]: Abstraction has 7760 states and 25794 transitions. [2020-04-18 03:07:40,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:07:40,207 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 25794 transitions. [2020-04-18 03:07:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 03:07:40,215 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:40,215 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] [2020-04-18 03:07:40,215 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]=== [2020-04-18 03:07:40,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:40,216 INFO L82 PathProgramCache]: Analyzing trace with hash 776627592, now seen corresponding path program 1 times [2020-04-18 03:07:40,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:40,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937952207] [2020-04-18 03:07:40,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:40,733 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-04-18 03:07:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:41,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937952207] [2020-04-18 03:07:41,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:41,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 03:07:41,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002464668] [2020-04-18 03:07:41,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 03:07:41,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:41,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 03:07:41,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-04-18 03:07:41,003 INFO L87 Difference]: Start difference. First operand 7760 states and 25794 transitions. Second operand 17 states. [2020-04-18 03:07:41,428 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2020-04-18 03:07:41,634 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-04-18 03:07:41,850 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-04-18 03:07:42,214 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2020-04-18 03:07:42,652 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-04-18 03:07:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:44,233 INFO L93 Difference]: Finished difference Result 11023 states and 36586 transitions. [2020-04-18 03:07:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 03:07:44,233 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2020-04-18 03:07:44,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:44,251 INFO L225 Difference]: With dead ends: 11023 [2020-04-18 03:07:44,251 INFO L226 Difference]: Without dead ends: 11023 [2020-04-18 03:07:44,252 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2020-04-18 03:07:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11023 states. [2020-04-18 03:07:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11023 to 8356. [2020-04-18 03:07:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8356 states. [2020-04-18 03:07:44,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8356 states to 8356 states and 27624 transitions. [2020-04-18 03:07:44,380 INFO L78 Accepts]: Start accepts. Automaton has 8356 states and 27624 transitions. Word has length 30 [2020-04-18 03:07:44,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:44,380 INFO L479 AbstractCegarLoop]: Abstraction has 8356 states and 27624 transitions. [2020-04-18 03:07:44,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 03:07:44,380 INFO L276 IsEmpty]: Start isEmpty. Operand 8356 states and 27624 transitions. [2020-04-18 03:07:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 03:07:44,387 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:44,387 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] [2020-04-18 03:07:44,387 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]=== [2020-04-18 03:07:44,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:44,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1738624317, now seen corresponding path program 2 times [2020-04-18 03:07:44,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:44,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718059263] [2020-04-18 03:07:44,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:44,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:44,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718059263] [2020-04-18 03:07:44,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:44,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-04-18 03:07:44,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713004921] [2020-04-18 03:07:44,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 03:07:44,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:44,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 03:07:44,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-04-18 03:07:44,627 INFO L87 Difference]: Start difference. First operand 8356 states and 27624 transitions. Second operand 12 states. [2020-04-18 03:07:46,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:46,902 INFO L93 Difference]: Finished difference Result 16709 states and 54977 transitions. [2020-04-18 03:07:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-04-18 03:07:46,902 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-04-18 03:07:46,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:46,929 INFO L225 Difference]: With dead ends: 16709 [2020-04-18 03:07:46,930 INFO L226 Difference]: Without dead ends: 16709 [2020-04-18 03:07:46,930 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2020-04-18 03:07:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16709 states. [2020-04-18 03:07:47,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16709 to 7932. [2020-04-18 03:07:47,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7932 states. [2020-04-18 03:07:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7932 states to 7932 states and 26202 transitions. [2020-04-18 03:07:47,167 INFO L78 Accepts]: Start accepts. Automaton has 7932 states and 26202 transitions. Word has length 30 [2020-04-18 03:07:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:47,167 INFO L479 AbstractCegarLoop]: Abstraction has 7932 states and 26202 transitions. [2020-04-18 03:07:47,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 03:07:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 7932 states and 26202 transitions. [2020-04-18 03:07:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 03:07:47,175 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:47,175 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] [2020-04-18 03:07:47,175 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]=== [2020-04-18 03:07:47,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:47,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1793695977, now seen corresponding path program 3 times [2020-04-18 03:07:47,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:47,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889682097] [2020-04-18 03:07:47,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:47,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889682097] [2020-04-18 03:07:47,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:47,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-04-18 03:07:47,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181046503] [2020-04-18 03:07:47,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 03:07:47,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:47,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 03:07:47,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-04-18 03:07:47,390 INFO L87 Difference]: Start difference. First operand 7932 states and 26202 transitions. Second operand 12 states. [2020-04-18 03:07:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:49,331 INFO L93 Difference]: Finished difference Result 17346 states and 57394 transitions. [2020-04-18 03:07:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 03:07:49,332 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-04-18 03:07:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:49,363 INFO L225 Difference]: With dead ends: 17346 [2020-04-18 03:07:49,363 INFO L226 Difference]: Without dead ends: 17346 [2020-04-18 03:07:49,364 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2020-04-18 03:07:49,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17346 states. [2020-04-18 03:07:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17346 to 6754. [2020-04-18 03:07:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6754 states. [2020-04-18 03:07:49,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6754 states to 6754 states and 22183 transitions. [2020-04-18 03:07:49,523 INFO L78 Accepts]: Start accepts. Automaton has 6754 states and 22183 transitions. Word has length 30 [2020-04-18 03:07:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:49,523 INFO L479 AbstractCegarLoop]: Abstraction has 6754 states and 22183 transitions. [2020-04-18 03:07:49,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 03:07:49,523 INFO L276 IsEmpty]: Start isEmpty. Operand 6754 states and 22183 transitions. [2020-04-18 03:07:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 03:07:49,530 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:49,530 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] [2020-04-18 03:07:49,530 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]=== [2020-04-18 03:07:49,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:49,531 INFO L82 PathProgramCache]: Analyzing trace with hash 590262918, now seen corresponding path program 2 times [2020-04-18 03:07:49,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:49,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524761817] [2020-04-18 03:07:49,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:49,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524761817] [2020-04-18 03:07:49,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:49,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 03:07:49,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697445622] [2020-04-18 03:07:49,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:07:49,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:49,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:07:49,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:07:49,823 INFO L87 Difference]: Start difference. First operand 6754 states and 22183 transitions. Second operand 13 states. [2020-04-18 03:07:52,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:52,131 INFO L93 Difference]: Finished difference Result 14234 states and 46705 transitions. [2020-04-18 03:07:52,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 03:07:52,132 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-04-18 03:07:52,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:52,157 INFO L225 Difference]: With dead ends: 14234 [2020-04-18 03:07:52,157 INFO L226 Difference]: Without dead ends: 14234 [2020-04-18 03:07:52,157 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-04-18 03:07:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2020-04-18 03:07:52,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 10078. [2020-04-18 03:07:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10078 states. [2020-04-18 03:07:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10078 states to 10078 states and 33899 transitions. [2020-04-18 03:07:52,341 INFO L78 Accepts]: Start accepts. Automaton has 10078 states and 33899 transitions. Word has length 30 [2020-04-18 03:07:52,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:52,342 INFO L479 AbstractCegarLoop]: Abstraction has 10078 states and 33899 transitions. [2020-04-18 03:07:52,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:07:52,342 INFO L276 IsEmpty]: Start isEmpty. Operand 10078 states and 33899 transitions. [2020-04-18 03:07:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 03:07:52,356 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:52,357 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] [2020-04-18 03:07:52,357 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]=== [2020-04-18 03:07:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:52,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1218334886, now seen corresponding path program 3 times [2020-04-18 03:07:52,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:52,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082305410] [2020-04-18 03:07:52,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:52,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:52,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082305410] [2020-04-18 03:07:52,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:52,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 03:07:52,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182117272] [2020-04-18 03:07:52,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:07:52,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:52,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:07:52,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:07:52,741 INFO L87 Difference]: Start difference. First operand 10078 states and 33899 transitions. Second operand 13 states. [2020-04-18 03:07:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:55,218 INFO L93 Difference]: Finished difference Result 17370 states and 57443 transitions. [2020-04-18 03:07:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 03:07:55,219 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-04-18 03:07:55,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:55,245 INFO L225 Difference]: With dead ends: 17370 [2020-04-18 03:07:55,245 INFO L226 Difference]: Without dead ends: 17370 [2020-04-18 03:07:55,246 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-04-18 03:07:55,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17370 states. [2020-04-18 03:07:55,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17370 to 10138. [2020-04-18 03:07:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10138 states. [2020-04-18 03:07:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10138 states to 10138 states and 34125 transitions. [2020-04-18 03:07:55,418 INFO L78 Accepts]: Start accepts. Automaton has 10138 states and 34125 transitions. Word has length 30 [2020-04-18 03:07:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:55,418 INFO L479 AbstractCegarLoop]: Abstraction has 10138 states and 34125 transitions. [2020-04-18 03:07:55,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:07:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 10138 states and 34125 transitions. [2020-04-18 03:07:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 03:07:55,430 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:55,430 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] [2020-04-18 03:07:55,430 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]=== [2020-04-18 03:07:55,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:55,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1108143156, now seen corresponding path program 4 times [2020-04-18 03:07:55,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:55,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751725528] [2020-04-18 03:07:55,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:07:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:07:55,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751725528] [2020-04-18 03:07:55,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:07:55,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 03:07:55,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112361659] [2020-04-18 03:07:55,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 03:07:55,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:07:55,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 03:07:55,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:07:55,724 INFO L87 Difference]: Start difference. First operand 10138 states and 34125 transitions. Second operand 13 states. [2020-04-18 03:07:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:07:58,978 INFO L93 Difference]: Finished difference Result 18224 states and 60619 transitions. [2020-04-18 03:07:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 03:07:58,978 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-04-18 03:07:58,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:07:59,009 INFO L225 Difference]: With dead ends: 18224 [2020-04-18 03:07:59,009 INFO L226 Difference]: Without dead ends: 18224 [2020-04-18 03:07:59,010 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2020-04-18 03:07:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18224 states. [2020-04-18 03:07:59,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18224 to 9322. [2020-04-18 03:07:59,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9322 states. [2020-04-18 03:07:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 31552 transitions. [2020-04-18 03:07:59,298 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 31552 transitions. Word has length 30 [2020-04-18 03:07:59,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:07:59,299 INFO L479 AbstractCegarLoop]: Abstraction has 9322 states and 31552 transitions. [2020-04-18 03:07:59,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 03:07:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 31552 transitions. [2020-04-18 03:07:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 03:07:59,308 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:07:59,308 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] [2020-04-18 03:07:59,308 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]=== [2020-04-18 03:07:59,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:07:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash 494321211, now seen corresponding path program 1 times [2020-04-18 03:07:59,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:07:59,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290867331] [2020-04-18 03:07:59,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:07:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:08:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:08:00,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290867331] [2020-04-18 03:08:00,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:08:00,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 03:08:00,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377086444] [2020-04-18 03:08:00,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 03:08:00,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:08:00,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 03:08:00,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2020-04-18 03:08:00,208 INFO L87 Difference]: Start difference. First operand 9322 states and 31552 transitions. Second operand 19 states. [2020-04-18 03:08:01,798 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-04-18 03:08:01,986 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-04-18 03:08:02,132 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2020-04-18 03:08:02,465 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2020-04-18 03:08:02,642 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-04-18 03:08:03,088 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-04-18 03:08:03,253 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2020-04-18 03:08:03,453 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-04-18 03:08:03,933 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2020-04-18 03:08:04,154 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-04-18 03:08:04,617 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-04-18 03:08:04,835 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2020-04-18 03:08:05,935 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2020-04-18 03:08:06,258 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-04-18 03:08:06,405 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-04-18 03:08:06,580 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-04-18 03:08:06,875 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-18 03:08:07,053 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 50 [2020-04-18 03:08:07,259 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2020-04-18 03:08:07,454 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2020-04-18 03:08:07,722 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2020-04-18 03:08:07,965 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2020-04-18 03:08:08,223 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2020-04-18 03:08:08,570 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-04-18 03:08:08,836 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2020-04-18 03:08:09,041 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-04-18 03:08:09,261 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2020-04-18 03:08:09,526 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2020-04-18 03:08:09,789 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2020-04-18 03:08:10,072 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2020-04-18 03:08:10,392 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-04-18 03:08:10,710 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-04-18 03:08:11,015 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-04-18 03:08:11,508 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2020-04-18 03:08:11,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:08:11,767 INFO L93 Difference]: Finished difference Result 9552 states and 32222 transitions. [2020-04-18 03:08:11,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-04-18 03:08:11,767 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-18 03:08:11,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:08:11,782 INFO L225 Difference]: With dead ends: 9552 [2020-04-18 03:08:11,783 INFO L226 Difference]: Without dead ends: 9552 [2020-04-18 03:08:11,784 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1274, Invalid=3418, Unknown=0, NotChecked=0, Total=4692 [2020-04-18 03:08:11,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9552 states. [2020-04-18 03:08:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9552 to 9532. [2020-04-18 03:08:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9532 states. [2020-04-18 03:08:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9532 states to 9532 states and 32182 transitions. [2020-04-18 03:08:11,900 INFO L78 Accepts]: Start accepts. Automaton has 9532 states and 32182 transitions. Word has length 31 [2020-04-18 03:08:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:08:11,900 INFO L479 AbstractCegarLoop]: Abstraction has 9532 states and 32182 transitions. [2020-04-18 03:08:11,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 03:08:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 9532 states and 32182 transitions. [2020-04-18 03:08:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 03:08:11,909 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:08:11,909 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] [2020-04-18 03:08:11,909 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]=== [2020-04-18 03:08:11,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:08:11,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1182482853, now seen corresponding path program 2 times [2020-04-18 03:08:11,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:08:11,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263717469] [2020-04-18 03:08:11,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:08:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:08:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:08:12,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263717469] [2020-04-18 03:08:12,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:08:12,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 03:08:12,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523142974] [2020-04-18 03:08:12,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 03:08:12,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:08:12,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 03:08:12,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2020-04-18 03:08:12,789 INFO L87 Difference]: Start difference. First operand 9532 states and 32182 transitions. Second operand 18 states. [2020-04-18 03:08:13,885 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-04-18 03:08:14,037 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-04-18 03:08:14,403 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-04-18 03:08:14,598 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2020-04-18 03:08:14,743 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-04-18 03:08:15,099 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-04-18 03:08:15,233 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2020-04-18 03:08:15,410 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2020-04-18 03:08:15,566 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-04-18 03:08:15,862 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-04-18 03:08:16,045 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-04-18 03:08:16,264 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-04-18 03:08:16,743 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-04-18 03:08:16,953 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-04-18 03:08:17,423 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 70 [2020-04-18 03:08:17,641 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2020-04-18 03:08:18,679 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2020-04-18 03:08:18,935 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-04-18 03:08:19,084 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-04-18 03:08:19,264 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-04-18 03:08:19,553 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-04-18 03:08:19,732 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-04-18 03:08:19,942 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2020-04-18 03:08:20,131 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-04-18 03:08:20,398 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-04-18 03:08:20,707 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-04-18 03:08:20,931 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-04-18 03:08:21,268 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2020-04-18 03:08:21,466 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-04-18 03:08:21,713 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2020-04-18 03:08:21,915 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-04-18 03:08:22,153 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-04-18 03:08:22,429 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2020-04-18 03:08:22,690 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2020-04-18 03:08:22,987 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2020-04-18 03:08:23,279 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2020-04-18 03:08:23,611 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2020-04-18 03:08:23,919 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2020-04-18 03:08:24,395 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 83 [2020-04-18 03:08:24,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:08:24,621 INFO L93 Difference]: Finished difference Result 9712 states and 32722 transitions. [2020-04-18 03:08:24,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-04-18 03:08:24,622 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2020-04-18 03:08:24,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:08:24,638 INFO L225 Difference]: With dead ends: 9712 [2020-04-18 03:08:24,638 INFO L226 Difference]: Without dead ends: 9712 [2020-04-18 03:08:24,639 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1339, Invalid=3491, Unknown=0, NotChecked=0, Total=4830 [2020-04-18 03:08:24,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9712 states. [2020-04-18 03:08:24,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9712 to 9482. [2020-04-18 03:08:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9482 states. [2020-04-18 03:08:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9482 states to 9482 states and 32032 transitions. [2020-04-18 03:08:24,772 INFO L78 Accepts]: Start accepts. Automaton has 9482 states and 32032 transitions. Word has length 31 [2020-04-18 03:08:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:08:24,773 INFO L479 AbstractCegarLoop]: Abstraction has 9482 states and 32032 transitions. [2020-04-18 03:08:24,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 03:08:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9482 states and 32032 transitions. [2020-04-18 03:08:24,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 03:08:24,783 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:08:24,783 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] [2020-04-18 03:08:24,783 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]=== [2020-04-18 03:08:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:08:24,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1713707043, now seen corresponding path program 3 times [2020-04-18 03:08:24,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:08:24,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983904334] [2020-04-18 03:08:24,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:08:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:08:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:08:25,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983904334] [2020-04-18 03:08:25,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:08:25,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 03:08:25,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907021308] [2020-04-18 03:08:25,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 03:08:25,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:08:25,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 03:08:25,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2020-04-18 03:08:25,695 INFO L87 Difference]: Start difference. First operand 9482 states and 32032 transitions. Second operand 19 states. [2020-04-18 03:08:27,174 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-04-18 03:08:27,543 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2020-04-18 03:08:27,933 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-04-18 03:08:28,112 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2020-04-18 03:08:28,662 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-04-18 03:08:29,009 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2020-04-18 03:08:29,208 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-04-18 03:08:29,409 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-04-18 03:08:29,815 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-04-18 03:08:30,367 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-04-18 03:08:30,823 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2020-04-18 03:08:31,045 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-04-18 03:08:31,338 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-04-18 03:08:31,617 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2020-04-18 03:08:31,978 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2020-04-18 03:08:32,266 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-04-18 03:08:32,513 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2020-04-18 03:08:32,731 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2020-04-18 03:08:32,954 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2020-04-18 03:08:33,244 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2020-04-18 03:08:33,499 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-04-18 03:08:33,765 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2020-04-18 03:08:34,020 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2020-04-18 03:08:34,364 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-04-18 03:08:34,624 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 61 [2020-04-18 03:08:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:08:34,814 INFO L93 Difference]: Finished difference Result 10342 states and 34602 transitions. [2020-04-18 03:08:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-04-18 03:08:34,814 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-18 03:08:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:08:34,832 INFO L225 Difference]: With dead ends: 10342 [2020-04-18 03:08:34,832 INFO L226 Difference]: Without dead ends: 10342 [2020-04-18 03:08:34,833 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=974, Invalid=2448, Unknown=0, NotChecked=0, Total=3422 [2020-04-18 03:08:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10342 states. [2020-04-18 03:08:34,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10342 to 9712. [2020-04-18 03:08:34,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9712 states. [2020-04-18 03:08:34,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9712 states to 9712 states and 32722 transitions. [2020-04-18 03:08:34,981 INFO L78 Accepts]: Start accepts. Automaton has 9712 states and 32722 transitions. Word has length 31 [2020-04-18 03:08:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:08:34,981 INFO L479 AbstractCegarLoop]: Abstraction has 9712 states and 32722 transitions. [2020-04-18 03:08:34,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 03:08:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand 9712 states and 32722 transitions. [2020-04-18 03:08:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 03:08:34,990 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:08:34,990 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] [2020-04-18 03:08:34,990 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]=== [2020-04-18 03:08:34,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:08:34,991 INFO L82 PathProgramCache]: Analyzing trace with hash -90243807, now seen corresponding path program 4 times [2020-04-18 03:08:34,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:08:34,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420167372] [2020-04-18 03:08:34,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:08:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:08:35,341 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 25 [2020-04-18 03:08:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:08:36,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420167372] [2020-04-18 03:08:36,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:08:36,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-04-18 03:08:36,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989055030] [2020-04-18 03:08:36,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 03:08:36,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:08:36,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 03:08:36,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2020-04-18 03:08:36,138 INFO L87 Difference]: Start difference. First operand 9712 states and 32722 transitions. Second operand 20 states. [2020-04-18 03:08:38,411 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2020-04-18 03:08:38,594 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2020-04-18 03:08:39,102 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-04-18 03:08:39,337 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 52 [2020-04-18 03:08:39,543 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2020-04-18 03:08:40,029 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-04-18 03:08:40,203 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 03:08:40,463 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2020-04-18 03:08:40,761 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-04-18 03:08:41,139 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-04-18 03:08:41,366 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-04-18 03:08:41,763 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2020-04-18 03:08:42,349 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2020-04-18 03:08:42,718 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2020-04-18 03:08:43,345 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2020-04-18 03:08:43,618 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2020-04-18 03:08:44,114 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-04-18 03:08:45,131 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2020-04-18 03:08:45,792 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2020-04-18 03:08:46,173 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2020-04-18 03:08:46,371 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2020-04-18 03:08:46,579 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-04-18 03:08:46,821 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-04-18 03:08:47,124 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-04-18 03:08:47,352 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2020-04-18 03:08:47,599 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 54 [2020-04-18 03:08:47,825 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2020-04-18 03:08:48,200 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2020-04-18 03:08:48,552 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 60 [2020-04-18 03:08:48,827 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2020-04-18 03:08:49,245 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2020-04-18 03:08:49,488 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2020-04-18 03:08:49,788 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2020-04-18 03:08:50,052 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2020-04-18 03:08:50,408 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2020-04-18 03:08:50,751 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2020-04-18 03:08:51,103 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2020-04-18 03:08:51,510 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2020-04-18 03:08:51,913 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2020-04-18 03:08:52,366 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2020-04-18 03:08:52,740 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 80 [2020-04-18 03:08:53,473 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 87 [2020-04-18 03:08:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:08:53,836 INFO L93 Difference]: Finished difference Result 11052 states and 36752 transitions. [2020-04-18 03:08:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-04-18 03:08:53,836 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 31 [2020-04-18 03:08:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:08:53,855 INFO L225 Difference]: With dead ends: 11052 [2020-04-18 03:08:53,855 INFO L226 Difference]: Without dead ends: 11052 [2020-04-18 03:08:53,857 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1161 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=1845, Invalid=5127, Unknown=0, NotChecked=0, Total=6972 [2020-04-18 03:08:53,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2020-04-18 03:08:53,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 9952. [2020-04-18 03:08:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9952 states. [2020-04-18 03:08:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9952 states to 9952 states and 33442 transitions. [2020-04-18 03:08:54,010 INFO L78 Accepts]: Start accepts. Automaton has 9952 states and 33442 transitions. Word has length 31 [2020-04-18 03:08:54,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:08:54,010 INFO L479 AbstractCegarLoop]: Abstraction has 9952 states and 33442 transitions. [2020-04-18 03:08:54,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 03:08:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 9952 states and 33442 transitions. [2020-04-18 03:08:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 03:08:54,020 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:08:54,020 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] [2020-04-18 03:08:54,020 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]=== [2020-04-18 03:08:54,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:08:54,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1227210307, now seen corresponding path program 5 times [2020-04-18 03:08:54,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:08:54,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288108524] [2020-04-18 03:08:54,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:08:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:08:54,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:08:54,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288108524] [2020-04-18 03:08:54,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:08:54,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 03:08:54,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702366935] [2020-04-18 03:08:54,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 03:08:54,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:08:54,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 03:08:54,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-04-18 03:08:54,937 INFO L87 Difference]: Start difference. First operand 9952 states and 33442 transitions. Second operand 19 states. [2020-04-18 03:08:56,477 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-04-18 03:08:56,701 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-04-18 03:08:57,134 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2020-04-18 03:08:57,559 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-04-18 03:08:57,731 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2020-04-18 03:08:58,378 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-04-18 03:08:58,826 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2020-04-18 03:08:59,025 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-04-18 03:08:59,238 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-04-18 03:08:59,698 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-04-18 03:09:00,340 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-04-18 03:09:00,576 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-04-18 03:09:00,863 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2020-04-18 03:09:01,117 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-04-18 03:09:01,458 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2020-04-18 03:09:01,792 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2020-04-18 03:09:02,328 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2020-04-18 03:09:02,642 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-04-18 03:09:02,889 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2020-04-18 03:09:03,112 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2020-04-18 03:09:03,333 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2020-04-18 03:09:03,630 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2020-04-18 03:09:03,885 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-04-18 03:09:04,160 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2020-04-18 03:09:04,432 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2020-04-18 03:09:04,810 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-04-18 03:09:05,110 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 61 [2020-04-18 03:09:05,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:09:05,398 INFO L93 Difference]: Finished difference Result 11202 states and 37202 transitions. [2020-04-18 03:09:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-04-18 03:09:05,398 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-04-18 03:09:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:09:05,415 INFO L225 Difference]: With dead ends: 11202 [2020-04-18 03:09:05,415 INFO L226 Difference]: Without dead ends: 11202 [2020-04-18 03:09:05,416 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=997, Invalid=2543, Unknown=0, NotChecked=0, Total=3540 [2020-04-18 03:09:05,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2020-04-18 03:09:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 9984. [2020-04-18 03:09:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9984 states. [2020-04-18 03:09:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9984 states to 9984 states and 33538 transitions. [2020-04-18 03:09:05,555 INFO L78 Accepts]: Start accepts. Automaton has 9984 states and 33538 transitions. Word has length 31 [2020-04-18 03:09:05,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:09:05,555 INFO L479 AbstractCegarLoop]: Abstraction has 9984 states and 33538 transitions. [2020-04-18 03:09:05,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 03:09:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 9984 states and 33538 transitions. [2020-04-18 03:09:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 03:09:05,565 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:09:05,565 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] [2020-04-18 03:09:05,565 INFO L427 AbstractCegarLoop]: === Iteration 43 === [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]=== [2020-04-18 03:09:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:09:05,565 INFO L82 PathProgramCache]: Analyzing trace with hash -549236217, now seen corresponding path program 6 times [2020-04-18 03:09:05,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:09:05,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089639122] [2020-04-18 03:09:05,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:09:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:09:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:09:06,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089639122] [2020-04-18 03:09:06,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:09:06,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-04-18 03:09:06,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612197393] [2020-04-18 03:09:06,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 03:09:06,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:09:06,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 03:09:06,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-04-18 03:09:06,482 INFO L87 Difference]: Start difference. First operand 9984 states and 33538 transitions. Second operand 20 states. [2020-04-18 03:09:09,374 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-04-18 03:09:09,675 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2020-04-18 03:09:09,898 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2020-04-18 03:09:10,570 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-04-18 03:09:10,726 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-04-18 03:09:11,008 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2020-04-18 03:09:11,484 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-18 03:09:11,804 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-04-18 03:09:12,009 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2020-04-18 03:09:12,327 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-04-18 03:09:12,949 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-04-18 03:09:13,254 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2020-04-18 03:09:13,859 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2020-04-18 03:09:14,114 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-04-18 03:09:15,584 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2020-04-18 03:09:16,602 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-04-18 03:09:16,755 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-04-18 03:09:16,988 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-04-18 03:09:17,167 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-04-18 03:09:17,518 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-04-18 03:09:17,708 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2020-04-18 03:09:17,898 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-04-18 03:09:18,159 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-04-18 03:09:18,492 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2020-04-18 03:09:18,787 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2020-04-18 03:09:19,029 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2020-04-18 03:09:19,455 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2020-04-18 03:09:19,752 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2020-04-18 03:09:19,981 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-04-18 03:09:20,212 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-04-18 03:09:20,523 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-04-18 03:09:20,842 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2020-04-18 03:09:21,168 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2020-04-18 03:09:21,582 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2020-04-18 03:09:21,945 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 68 [2020-04-18 03:09:22,364 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2020-04-18 03:09:22,706 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2020-04-18 03:09:23,334 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 82 [2020-04-18 03:09:23,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:09:23,643 INFO L93 Difference]: Finished difference Result 12101 states and 39961 transitions. [2020-04-18 03:09:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-04-18 03:09:23,643 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 31 [2020-04-18 03:09:23,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:09:23,664 INFO L225 Difference]: With dead ends: 12101 [2020-04-18 03:09:23,665 INFO L226 Difference]: Without dead ends: 12101 [2020-04-18 03:09:23,667 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1388 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=2053, Invalid=5779, Unknown=0, NotChecked=0, Total=7832 [2020-04-18 03:09:23,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12101 states. [2020-04-18 03:09:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12101 to 10225. [2020-04-18 03:09:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10225 states. [2020-04-18 03:09:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 34303 transitions. [2020-04-18 03:09:23,815 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 34303 transitions. Word has length 31 [2020-04-18 03:09:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:09:23,815 INFO L479 AbstractCegarLoop]: Abstraction has 10225 states and 34303 transitions. [2020-04-18 03:09:23,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 03:09:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 34303 transitions. [2020-04-18 03:09:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 03:09:23,826 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:09:23,826 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] [2020-04-18 03:09:23,826 INFO L427 AbstractCegarLoop]: === Iteration 44 === [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]=== [2020-04-18 03:09:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:09:23,827 INFO L82 PathProgramCache]: Analyzing trace with hash 482948537, now seen corresponding path program 7 times [2020-04-18 03:09:23,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:09:23,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669812614] [2020-04-18 03:09:23,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:09:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:09:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:09:24,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669812614] [2020-04-18 03:09:24,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:09:24,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-04-18 03:09:24,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14740012] [2020-04-18 03:09:24,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 03:09:24,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:09:24,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 03:09:24,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2020-04-18 03:09:24,824 INFO L87 Difference]: Start difference. First operand 10225 states and 34303 transitions. Second operand 20 states. [2020-04-18 03:09:28,325 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-04-18 03:09:28,535 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-04-18 03:09:28,722 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2020-04-18 03:09:28,982 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2020-04-18 03:09:29,156 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2020-04-18 03:09:29,705 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-04-18 03:09:29,938 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2020-04-18 03:09:30,344 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-04-18 03:09:30,507 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2020-04-18 03:09:30,766 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-04-18 03:09:30,920 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-04-18 03:09:31,300 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-18 03:09:31,508 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-04-18 03:09:31,823 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2020-04-18 03:09:32,123 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2020-04-18 03:09:32,358 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2020-04-18 03:09:32,547 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2020-04-18 03:09:33,118 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-04-18 03:09:33,419 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2020-04-18 03:09:33,799 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-04-18 03:09:34,002 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2020-04-18 03:09:34,269 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2020-04-18 03:09:34,913 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2020-04-18 03:09:35,168 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2020-04-18 03:09:35,738 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2020-04-18 03:09:36,778 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2020-04-18 03:09:37,471 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2020-04-18 03:09:38,208 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2020-04-18 03:09:38,879 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-04-18 03:09:39,052 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2020-04-18 03:09:39,250 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-04-18 03:09:39,839 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-04-18 03:09:40,031 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2020-04-18 03:09:40,258 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-04-18 03:09:40,468 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-04-18 03:09:41,012 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-04-18 03:09:41,340 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-04-18 03:09:41,584 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-04-18 03:09:42,143 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2020-04-18 03:09:42,443 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-04-18 03:09:42,676 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2020-04-18 03:09:42,889 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-04-18 03:09:43,189 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-04-18 03:09:43,493 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2020-04-18 03:09:43,786 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2020-04-18 03:09:44,077 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2020-04-18 03:09:44,425 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2020-04-18 03:09:44,784 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2020-04-18 03:09:45,129 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2020-04-18 03:09:45,531 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2020-04-18 03:09:45,868 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 77 [2020-04-18 03:09:46,302 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2020-04-18 03:09:46,932 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2020-04-18 03:09:47,332 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 Received shutdown request... [2020-04-18 03:09:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-04-18 03:09:47,469 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 03:09:47,474 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 03:09:47,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:09:47 BasicIcfg [2020-04-18 03:09:47,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 03:09:47,476 INFO L168 Benchmark]: Toolchain (without parser) took 246702.95 ms. Allocated memory was 144.7 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 100.8 MB in the beginning and 818.6 MB in the end (delta: -717.8 MB). Peak memory consumption was 919.6 MB. Max. memory is 7.1 GB. [2020-04-18 03:09:47,476 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 03:09:47,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 978.19 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 98.8 MB in the beginning and 123.9 MB in the end (delta: -25.1 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-04-18 03:09:47,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.92 ms. Allocated memory is still 202.4 MB. Free memory was 123.9 MB in the beginning and 120.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-04-18 03:09:47,478 INFO L168 Benchmark]: Boogie Preprocessor took 40.37 ms. Allocated memory is still 202.4 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 03:09:47,478 INFO L168 Benchmark]: RCFGBuilder took 808.62 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 118.2 MB in the beginning and 195.3 MB in the end (delta: -77.1 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. [2020-04-18 03:09:47,478 INFO L168 Benchmark]: TraceAbstraction took 244761.87 ms. Allocated memory was 234.9 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 195.3 MB in the beginning and 818.6 MB in the end (delta: -623.3 MB). Peak memory consumption was 923.8 MB. Max. memory is 7.1 GB. [2020-04-18 03:09:47,480 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 978.19 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 98.8 MB in the beginning and 123.9 MB in the end (delta: -25.1 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 85.92 ms. Allocated memory is still 202.4 MB. Free memory was 123.9 MB in the beginning and 120.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.37 ms. Allocated memory is still 202.4 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 808.62 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 118.2 MB in the beginning and 195.3 MB in the end (delta: -77.1 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244761.87 ms. Allocated memory was 234.9 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 195.3 MB in the beginning and 818.6 MB in the end (delta: -623.3 MB). Peak memory consumption was 923.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.7s, 177 ProgramPointsBefore, 59 ProgramPointsAfterwards, 189 TransitionsBefore, 65 TransitionsAfterwards, 15102 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 27 ConcurrentYvCompositions, 6 ChoiceCompositions, 7548 VarBasedMoverChecksPositive, 79 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 20948 CheckedPairsTotal, 149 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 (10225states) and FLOYD_HOARE automaton (currently 88 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6149 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1054]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1054). Cancelled while BasicCegarLoop was constructing difference of abstraction (10225states) and FLOYD_HOARE automaton (currently 88 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6149 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1053). Cancelled while BasicCegarLoop was constructing difference of abstraction (10225states) and FLOYD_HOARE automaton (currently 88 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6149 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1050). Cancelled while BasicCegarLoop was constructing difference of abstraction (10225states) and FLOYD_HOARE automaton (currently 88 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6149 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 244.5s, OverallIterations: 44, TraceHistogramMax: 1, AutomataDifference: 206.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 3282 SDtfs, 13748 SDslu, 13822 SDs, 0 SdLazy, 85837 SolverSat, 1697 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1467 GetRequests, 39 SyntacticMatches, 32 SemanticMatches, 1396 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10255 ImplicationChecksByTransitivity, 118.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10225occurred in iteration=43, 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, 43 MinimizatonAttempts, 95578 StatesRemovedByMinimization, 42 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 26.6s InterpolantComputationTime, 1195 NumberOfCodeBlocks, 1195 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 1151 ConstructedInterpolants, 0 QuantifiedInterpolants, 789238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 44 InterpolantComputations, 44 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