/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:06:02,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:06:02,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:06:02,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:06:02,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:06:02,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:06:02,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:06:02,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:06:02,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:06:02,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:06:02,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:06:02,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:06:02,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:06:02,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:06:02,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:06:02,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:06:02,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:06:02,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:06:02,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:06:02,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:06:02,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:06:02,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:06:02,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:06:02,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:06:02,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:06:02,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:06:02,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:06:02,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:06:02,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:06:02,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:06:02,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:06:02,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:06:02,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:06:02,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:06:02,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:06:02,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:06:02,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:06:02,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:06:02,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:06:02,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:06:02,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:06:02,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:06:02,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:06:02,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:06:02,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:06:02,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:06:02,777 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:06:02,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:06:02,780 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:06:02,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:06:02,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:06:02,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:06:02,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:06:02,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:06:02,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:06:02,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:06:02,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:06:02,784 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:06:02,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:06:02,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:06:02,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:06:02,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:06:02,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:06:02,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:06:02,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:06:02,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:06:02,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:06:02,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:06:02,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:06:02,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:06:02,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:06:02,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:06:03,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:06:03,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:06:03,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:06:03,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:06:03,135 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:06:03,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-10-21 22:06:03,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e0a8fcc/0fe343b49623482c996ca1da3abe3702/FLAGae99755a7 [2020-10-21 22:06:03,809 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:06:03,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-10-21 22:06:03,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e0a8fcc/0fe343b49623482c996ca1da3abe3702/FLAGae99755a7 [2020-10-21 22:06:04,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e0a8fcc/0fe343b49623482c996ca1da3abe3702 [2020-10-21 22:06:04,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:06:04,053 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:06:04,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:06:04,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:06:04,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:06:04,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e44cb01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04, skipping insertion in model container [2020-10-21 22:06:04,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:06:04,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:06:04,333 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 22:06:04,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:06:04,881 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:06:04,898 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 22:06:04,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:06:05,355 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:06:05,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05 WrapperNode [2020-10-21 22:06:05,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:06:05,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:06:05,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:06:05,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:06:05,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:06:05,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:06:05,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:06:05,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:06:05,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (1/1) ... [2020-10-21 22:06:05,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:06:05,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:06:05,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:06:05,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:06:05,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (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 [2020-10-21 22:06:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:06:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:06:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:06:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:06:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-21 22:06:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:06:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:06:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-21 22:06:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-21 22:06:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:06:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:06:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:06:05,657 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:06:06,360 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:06:06,361 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-21 22:06:06,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:06:06 BoogieIcfgContainer [2020-10-21 22:06:06,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:06:06,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:06:06,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:06:06,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:06:06,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:06:04" (1/3) ... [2020-10-21 22:06:06,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10715571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:06:06, skipping insertion in model container [2020-10-21 22:06:06,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:05" (2/3) ... [2020-10-21 22:06:06,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10715571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:06:06, skipping insertion in model container [2020-10-21 22:06:06,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:06:06" (3/3) ... [2020-10-21 22:06:06,373 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2020-10-21 22:06:06,386 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:06:06,386 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:06:06,395 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-21 22:06:06,396 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:06:06,429 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,435 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,435 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,435 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,435 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,436 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,436 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,436 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,436 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,437 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,437 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,437 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,437 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,437 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,439 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,439 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,439 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,439 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,440 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,440 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,440 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,440 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,441 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,441 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,441 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,445 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,445 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,446 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,446 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,446 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,446 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,447 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,447 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,447 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,447 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,447 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,456 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,456 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,457 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,457 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,457 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,457 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,458 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,458 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,458 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,458 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,458 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:06,468 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:06:06,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 22:06:06,500 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:06:06,500 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:06:06,500 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:06:06,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:06:06,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:06:06,501 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:06:06,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:06:06,501 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:06:06,520 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:06:06,523 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 151 transitions, 324 flow [2020-10-21 22:06:06,526 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 151 transitions, 324 flow [2020-10-21 22:06:06,528 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 145 places, 151 transitions, 324 flow [2020-10-21 22:06:06,633 INFO L129 PetriNetUnfolder]: 15/199 cut-off events. [2020-10-21 22:06:06,634 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 22:06:06,640 INFO L80 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 199 events. 15/199 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 429 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 98. Up to 4 conditions per place. [2020-10-21 22:06:06,644 INFO L116 LiptonReduction]: Number of co-enabled transitions 2124 [2020-10-21 22:06:06,942 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,969 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,975 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,996 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,998 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,999 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:98, output treesize:100 [2020-10-21 22:06:07,015 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:07,042 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:07,047 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:07,068 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:07,069 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:07,070 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:102 [2020-10-21 22:06:09,914 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,950 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:09,956 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,992 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:09,995 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,995 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:106, output treesize:108 [2020-10-21 22:06:10,010 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,044 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:10,049 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,075 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:10,076 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,077 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:110 [2020-10-21 22:06:10,100 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,142 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:10,147 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,184 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:10,186 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,186 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:120, output treesize:122 [2020-10-21 22:06:10,202 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,239 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:10,243 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,273 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:10,275 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:10,275 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:122, output treesize:124 [2020-10-21 22:06:12,443 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,482 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,486 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,513 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,514 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,515 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:110 [2020-10-21 22:06:12,527 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,564 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,569 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,603 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,604 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:106, output treesize:108 [2020-10-21 22:06:12,724 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,752 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,757 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,786 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,787 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,787 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:114, output treesize:116 [2020-10-21 22:06:12,800 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,832 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,836 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,861 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:12,863 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:12,863 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:114, output treesize:116 [2020-10-21 22:06:14,888 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:14,913 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:14,918 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:14,936 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:14,937 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:14,938 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:14,958 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:14,984 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:14,988 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,007 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:15,008 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,009 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:17,251 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:17,278 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:17,282 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:17,319 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:17,320 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:17,321 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:122, output treesize:124 [2020-10-21 22:06:17,333 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:17,377 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:17,382 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:17,419 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:17,421 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:17,421 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:120, output treesize:122 [2020-10-21 22:06:19,614 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,637 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:19,643 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,663 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:19,664 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,665 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:103, output treesize:75 [2020-10-21 22:06:20,008 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:20,038 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:20,043 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:20,070 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:20,072 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:20,072 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:120, output treesize:122 [2020-10-21 22:06:20,093 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:20,122 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:20,125 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:20,148 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:20,149 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:20,150 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:122, output treesize:124 [2020-10-21 22:06:22,213 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:22,242 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:22,245 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:22,268 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:22,269 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:22,270 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:122, output treesize:124 [2020-10-21 22:06:22,282 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:22,339 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:22,343 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:22,374 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:22,376 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:22,376 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:120, output treesize:122 [2020-10-21 22:06:24,733 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:24,782 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:24,787 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:24,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:24,822 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:24,822 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:122, output treesize:124 [2020-10-21 22:06:24,835 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:24,873 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:24,878 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:24,917 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:24,918 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:24,918 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:122, output treesize:124 [2020-10-21 22:06:26,950 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:26,981 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:26,984 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:27,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:27,009 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:27,009 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:118, output treesize:120 [2020-10-21 22:06:27,019 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:27,049 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:27,053 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:27,075 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:27,076 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:27,076 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:118, output treesize:120 [2020-10-21 22:06:29,723 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:29,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:29,760 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:29,778 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:29,779 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:29,779 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:74 [2020-10-21 22:06:29,809 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:29,853 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:29,857 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:29,893 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:29,894 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:29,894 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-21 22:06:29,909 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:29,962 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:29,966 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:30,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:30,015 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:30,015 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:138 [2020-10-21 22:06:32,042 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:32,077 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:32,082 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:32,107 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:32,108 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:32,109 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-21 22:06:32,129 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:32,170 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:32,174 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:32,207 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:32,208 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:32,209 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:134, output treesize:136 [2020-10-21 22:06:34,850 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-21 22:06:34,863 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:34,950 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:34,961 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,056 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:35,057 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,058 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:148, output treesize:160 [2020-10-21 22:06:35,419 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-21 22:06:35,537 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,600 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:35,606 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,667 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:35,668 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,668 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:140, output treesize:142 [2020-10-21 22:06:35,684 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,745 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:35,750 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:35,828 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:35,829 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:140, output treesize:142 [2020-10-21 22:06:37,858 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:37,909 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:37,924 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:37,980 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:37,981 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:37,981 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:138 [2020-10-21 22:06:37,992 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:38,047 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:38,051 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:38,096 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:38,097 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:38,098 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:138 [2020-10-21 22:06:40,234 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-21 22:06:40,723 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-21 22:06:40,932 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-21 22:06:41,317 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-21 22:06:41,721 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-21 22:06:42,481 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-10-21 22:06:42,788 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-21 22:06:44,304 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2020-10-21 22:06:44,836 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-21 22:06:44,877 INFO L131 LiptonReduction]: Checked pairs total: 3461 [2020-10-21 22:06:44,877 INFO L133 LiptonReduction]: Total number of compositions: 178 [2020-10-21 22:06:44,885 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 30 transitions, 82 flow [2020-10-21 22:06:44,908 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 119 states. [2020-10-21 22:06:44,911 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-10-21 22:06:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:06:44,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:44,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:06:44,919 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:44,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:44,927 INFO L82 PathProgramCache]: Analyzing trace with hash 17468860, now seen corresponding path program 1 times [2020-10-21 22:06:44,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:44,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860132099] [2020-10-21 22:06:44,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:45,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860132099] [2020-10-21 22:06:45,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:45,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:45,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904212997] [2020-10-21 22:06:45,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:45,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:45,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:45,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:45,416 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 3 states. [2020-10-21 22:06:45,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:45,536 INFO L93 Difference]: Finished difference Result 149 states and 304 transitions. [2020-10-21 22:06:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:45,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:06:45,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:45,553 INFO L225 Difference]: With dead ends: 149 [2020-10-21 22:06:45,553 INFO L226 Difference]: Without dead ends: 138 [2020-10-21 22:06:45,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:45,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-21 22:06:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 122. [2020-10-21 22:06:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-21 22:06:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 245 transitions. [2020-10-21 22:06:45,612 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 245 transitions. Word has length 4 [2020-10-21 22:06:45,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:45,612 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 245 transitions. [2020-10-21 22:06:45,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 245 transitions. [2020-10-21 22:06:45,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 22:06:45,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:45,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 22:06:45,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:06:45,614 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:45,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:45,615 INFO L82 PathProgramCache]: Analyzing trace with hash 541532734, now seen corresponding path program 1 times [2020-10-21 22:06:45,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:45,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108015032] [2020-10-21 22:06:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:45,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108015032] [2020-10-21 22:06:45,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:45,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:45,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114307895] [2020-10-21 22:06:45,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:45,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:45,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:45,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:45,723 INFO L87 Difference]: Start difference. First operand 122 states and 245 transitions. Second operand 3 states. [2020-10-21 22:06:45,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:45,826 INFO L93 Difference]: Finished difference Result 144 states and 287 transitions. [2020-10-21 22:06:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:45,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-21 22:06:45,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:45,830 INFO L225 Difference]: With dead ends: 144 [2020-10-21 22:06:45,830 INFO L226 Difference]: Without dead ends: 137 [2020-10-21 22:06:45,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:45,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-21 22:06:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 129. [2020-10-21 22:06:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-21 22:06:45,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 268 transitions. [2020-10-21 22:06:45,866 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 268 transitions. Word has length 5 [2020-10-21 22:06:45,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:45,869 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 268 transitions. [2020-10-21 22:06:45,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 268 transitions. [2020-10-21 22:06:45,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:06:45,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:45,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:45,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:06:45,875 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:45,875 INFO L82 PathProgramCache]: Analyzing trace with hash 889965532, now seen corresponding path program 1 times [2020-10-21 22:06:45,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:45,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993064684] [2020-10-21 22:06:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:45,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993064684] [2020-10-21 22:06:45,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:45,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:06:45,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058654288] [2020-10-21 22:06:45,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:45,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:45,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:45,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:45,983 INFO L87 Difference]: Start difference. First operand 129 states and 268 transitions. Second operand 3 states. [2020-10-21 22:06:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:45,998 INFO L93 Difference]: Finished difference Result 57 states and 101 transitions. [2020-10-21 22:06:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:45,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 22:06:45,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:46,000 INFO L225 Difference]: With dead ends: 57 [2020-10-21 22:06:46,000 INFO L226 Difference]: Without dead ends: 57 [2020-10-21 22:06:46,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:46,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-21 22:06:46,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-21 22:06:46,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-21 22:06:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 101 transitions. [2020-10-21 22:06:46,006 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 101 transitions. Word has length 9 [2020-10-21 22:06:46,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:46,006 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 101 transitions. [2020-10-21 22:06:46,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 101 transitions. [2020-10-21 22:06:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:46,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:46,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:46,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:06:46,008 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:46,009 INFO L82 PathProgramCache]: Analyzing trace with hash -511512528, now seen corresponding path program 1 times [2020-10-21 22:06:46,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:46,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652669126] [2020-10-21 22:06:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:46,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652669126] [2020-10-21 22:06:46,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:46,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 22:06:46,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754615062] [2020-10-21 22:06:46,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:06:46,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:46,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:06:46,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:06:46,379 INFO L87 Difference]: Start difference. First operand 57 states and 101 transitions. Second operand 8 states. [2020-10-21 22:06:46,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:46,761 INFO L93 Difference]: Finished difference Result 86 states and 147 transitions. [2020-10-21 22:06:46,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:06:46,761 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-21 22:06:46,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:46,762 INFO L225 Difference]: With dead ends: 86 [2020-10-21 22:06:46,763 INFO L226 Difference]: Without dead ends: 86 [2020-10-21 22:06:46,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-21 22:06:46,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-21 22:06:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 70. [2020-10-21 22:06:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-21 22:06:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 118 transitions. [2020-10-21 22:06:46,777 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 118 transitions. Word has length 16 [2020-10-21 22:06:46,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:46,778 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 118 transitions. [2020-10-21 22:06:46,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:06:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 118 transitions. [2020-10-21 22:06:46,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:46,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:46,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:46,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:06:46,779 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:46,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:46,780 INFO L82 PathProgramCache]: Analyzing trace with hash -511512506, now seen corresponding path program 1 times [2020-10-21 22:06:46,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:46,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176035819] [2020-10-21 22:06:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:47,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176035819] [2020-10-21 22:06:47,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:47,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:47,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549257311] [2020-10-21 22:06:47,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:47,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:47,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:47,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:47,634 INFO L87 Difference]: Start difference. First operand 70 states and 118 transitions. Second operand 12 states. [2020-10-21 22:06:48,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:48,290 INFO L93 Difference]: Finished difference Result 97 states and 164 transitions. [2020-10-21 22:06:48,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:06:48,291 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:06:48,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:48,292 INFO L225 Difference]: With dead ends: 97 [2020-10-21 22:06:48,293 INFO L226 Difference]: Without dead ends: 80 [2020-10-21 22:06:48,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:06:48,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-21 22:06:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2020-10-21 22:06:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-21 22:06:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 125 transitions. [2020-10-21 22:06:48,299 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 125 transitions. Word has length 16 [2020-10-21 22:06:48,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:48,300 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 125 transitions. [2020-10-21 22:06:48,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:06:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 125 transitions. [2020-10-21 22:06:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:48,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:48,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:48,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:06:48,302 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:48,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:48,302 INFO L82 PathProgramCache]: Analyzing trace with hash 2097849826, now seen corresponding path program 2 times [2020-10-21 22:06:48,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:48,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401203337] [2020-10-21 22:06:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:48,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:48,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401203337] [2020-10-21 22:06:48,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:48,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-21 22:06:48,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582841489] [2020-10-21 22:06:48,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 22:06:48,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:48,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 22:06:48,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:06:48,862 INFO L87 Difference]: Start difference. First operand 73 states and 125 transitions. Second operand 11 states. [2020-10-21 22:06:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:49,537 INFO L93 Difference]: Finished difference Result 138 states and 222 transitions. [2020-10-21 22:06:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:06:49,538 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-10-21 22:06:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:49,540 INFO L225 Difference]: With dead ends: 138 [2020-10-21 22:06:49,540 INFO L226 Difference]: Without dead ends: 138 [2020-10-21 22:06:49,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-10-21 22:06:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-21 22:06:49,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 78. [2020-10-21 22:06:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-21 22:06:49,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 134 transitions. [2020-10-21 22:06:49,547 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 134 transitions. Word has length 16 [2020-10-21 22:06:49,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:49,547 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 134 transitions. [2020-10-21 22:06:49,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 22:06:49,547 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 134 transitions. [2020-10-21 22:06:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:49,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:49,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:49,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:06:49,549 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:49,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:49,549 INFO L82 PathProgramCache]: Analyzing trace with hash 2097849848, now seen corresponding path program 2 times [2020-10-21 22:06:49,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:49,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155829737] [2020-10-21 22:06:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:50,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155829737] [2020-10-21 22:06:50,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:50,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:50,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349112128] [2020-10-21 22:06:50,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:50,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:50,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:50,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:50,191 INFO L87 Difference]: Start difference. First operand 78 states and 134 transitions. Second operand 12 states. [2020-10-21 22:06:50,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:50,896 INFO L93 Difference]: Finished difference Result 94 states and 158 transitions. [2020-10-21 22:06:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:06:50,898 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:06:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:50,899 INFO L225 Difference]: With dead ends: 94 [2020-10-21 22:06:50,899 INFO L226 Difference]: Without dead ends: 81 [2020-10-21 22:06:50,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:06:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-21 22:06:50,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2020-10-21 22:06:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-21 22:06:50,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 133 transitions. [2020-10-21 22:06:50,904 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 133 transitions. Word has length 16 [2020-10-21 22:06:50,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:50,904 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 133 transitions. [2020-10-21 22:06:50,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:06:50,905 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 133 transitions. [2020-10-21 22:06:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:50,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:50,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:50,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:06:50,906 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:50,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:50,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1185646600, now seen corresponding path program 1 times [2020-10-21 22:06:50,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:50,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109228120] [2020-10-21 22:06:50,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:51,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109228120] [2020-10-21 22:06:51,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:51,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:06:51,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369924574] [2020-10-21 22:06:51,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:06:51,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:51,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:06:51,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:06:51,027 INFO L87 Difference]: Start difference. First operand 78 states and 133 transitions. Second operand 8 states. [2020-10-21 22:06:51,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:51,229 INFO L93 Difference]: Finished difference Result 94 states and 157 transitions. [2020-10-21 22:06:51,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:06:51,230 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-21 22:06:51,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:51,231 INFO L225 Difference]: With dead ends: 94 [2020-10-21 22:06:51,231 INFO L226 Difference]: Without dead ends: 94 [2020-10-21 22:06:51,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:06:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-21 22:06:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2020-10-21 22:06:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-21 22:06:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 141 transitions. [2020-10-21 22:06:51,236 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 141 transitions. Word has length 16 [2020-10-21 22:06:51,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:51,237 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 141 transitions. [2020-10-21 22:06:51,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:06:51,237 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 141 transitions. [2020-10-21 22:06:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:51,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:51,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:51,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:06:51,239 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:51,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:51,239 INFO L82 PathProgramCache]: Analyzing trace with hash 191288070, now seen corresponding path program 3 times [2020-10-21 22:06:51,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:51,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355159486] [2020-10-21 22:06:51,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:51,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:51,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355159486] [2020-10-21 22:06:51,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:51,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:51,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778048311] [2020-10-21 22:06:51,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:51,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:51,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:51,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:51,801 INFO L87 Difference]: Start difference. First operand 84 states and 141 transitions. Second operand 12 states. [2020-10-21 22:06:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:52,473 INFO L93 Difference]: Finished difference Result 97 states and 161 transitions. [2020-10-21 22:06:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:06:52,474 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:06:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:52,475 INFO L225 Difference]: With dead ends: 97 [2020-10-21 22:06:52,475 INFO L226 Difference]: Without dead ends: 88 [2020-10-21 22:06:52,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:06:52,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-21 22:06:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-10-21 22:06:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-21 22:06:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 137 transitions. [2020-10-21 22:06:52,480 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 137 transitions. Word has length 16 [2020-10-21 22:06:52,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:52,480 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 137 transitions. [2020-10-21 22:06:52,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:06:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 137 transitions. [2020-10-21 22:06:52,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:52,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:52,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:52,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 22:06:52,482 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:52,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:52,482 INFO L82 PathProgramCache]: Analyzing trace with hash -529892938, now seen corresponding path program 4 times [2020-10-21 22:06:52,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:52,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937765246] [2020-10-21 22:06:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:53,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937765246] [2020-10-21 22:06:53,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:53,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:53,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791350051] [2020-10-21 22:06:53,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:53,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:53,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:53,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:53,076 INFO L87 Difference]: Start difference. First operand 81 states and 137 transitions. Second operand 12 states. [2020-10-21 22:06:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:53,646 INFO L93 Difference]: Finished difference Result 111 states and 187 transitions. [2020-10-21 22:06:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:06:53,646 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:06:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:53,647 INFO L225 Difference]: With dead ends: 111 [2020-10-21 22:06:53,648 INFO L226 Difference]: Without dead ends: 94 [2020-10-21 22:06:53,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:06:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-21 22:06:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 83. [2020-10-21 22:06:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-21 22:06:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 140 transitions. [2020-10-21 22:06:53,653 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 140 transitions. Word has length 16 [2020-10-21 22:06:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:53,653 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 140 transitions. [2020-10-21 22:06:53,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:06:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 140 transitions. [2020-10-21 22:06:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:53,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:53,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:53,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 22:06:53,655 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:53,655 INFO L82 PathProgramCache]: Analyzing trace with hash -969164830, now seen corresponding path program 3 times [2020-10-21 22:06:53,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:53,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316868608] [2020-10-21 22:06:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:54,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316868608] [2020-10-21 22:06:54,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:54,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 22:06:54,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718062927] [2020-10-21 22:06:54,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:06:54,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:54,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:06:54,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:06:54,022 INFO L87 Difference]: Start difference. First operand 83 states and 140 transitions. Second operand 8 states. [2020-10-21 22:06:54,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:54,239 INFO L93 Difference]: Finished difference Result 106 states and 169 transitions. [2020-10-21 22:06:54,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:06:54,240 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-21 22:06:54,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:54,241 INFO L225 Difference]: With dead ends: 106 [2020-10-21 22:06:54,242 INFO L226 Difference]: Without dead ends: 106 [2020-10-21 22:06:54,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:06:54,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-21 22:06:54,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 87. [2020-10-21 22:06:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-21 22:06:54,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 146 transitions. [2020-10-21 22:06:54,246 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 146 transitions. Word has length 16 [2020-10-21 22:06:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:54,247 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 146 transitions. [2020-10-21 22:06:54,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:06:54,247 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 146 transitions. [2020-10-21 22:06:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:54,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:54,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:54,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 22:06:54,248 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:54,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:54,248 INFO L82 PathProgramCache]: Analyzing trace with hash -969164808, now seen corresponding path program 5 times [2020-10-21 22:06:54,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:54,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361571846] [2020-10-21 22:06:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:54,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361571846] [2020-10-21 22:06:54,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:54,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:54,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119724374] [2020-10-21 22:06:54,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:54,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:54,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:54,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:54,824 INFO L87 Difference]: Start difference. First operand 87 states and 146 transitions. Second operand 12 states. [2020-10-21 22:06:55,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:55,455 INFO L93 Difference]: Finished difference Result 114 states and 188 transitions. [2020-10-21 22:06:55,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:06:55,455 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:06:55,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:55,457 INFO L225 Difference]: With dead ends: 114 [2020-10-21 22:06:55,457 INFO L226 Difference]: Without dead ends: 101 [2020-10-21 22:06:55,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:06:55,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-21 22:06:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-10-21 22:06:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-21 22:06:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 149 transitions. [2020-10-21 22:06:55,462 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 149 transitions. Word has length 16 [2020-10-21 22:06:55,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:55,462 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 149 transitions. [2020-10-21 22:06:55,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:06:55,462 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 149 transitions. [2020-10-21 22:06:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:55,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:55,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:55,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-21 22:06:55,463 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:55,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:55,464 INFO L82 PathProgramCache]: Analyzing trace with hash 766708342, now seen corresponding path program 6 times [2020-10-21 22:06:55,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:55,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248078719] [2020-10-21 22:06:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:56,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248078719] [2020-10-21 22:06:56,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:56,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:56,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47919698] [2020-10-21 22:06:56,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:56,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:56,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:56,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:56,082 INFO L87 Difference]: Start difference. First operand 89 states and 149 transitions. Second operand 12 states. [2020-10-21 22:06:56,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:56,623 INFO L93 Difference]: Finished difference Result 107 states and 176 transitions. [2020-10-21 22:06:56,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:06:56,624 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:06:56,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:56,625 INFO L225 Difference]: With dead ends: 107 [2020-10-21 22:06:56,625 INFO L226 Difference]: Without dead ends: 92 [2020-10-21 22:06:56,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:06:56,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-21 22:06:56,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2020-10-21 22:06:56,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-21 22:06:56,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 141 transitions. [2020-10-21 22:06:56,629 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 141 transitions. Word has length 16 [2020-10-21 22:06:56,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:56,630 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 141 transitions. [2020-10-21 22:06:56,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:06:56,630 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 141 transitions. [2020-10-21 22:06:56,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:56,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:56,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:56,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-21 22:06:56,631 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:56,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:56,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1667139220, now seen corresponding path program 4 times [2020-10-21 22:06:56,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:56,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486259164] [2020-10-21 22:06:56,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:57,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:57,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486259164] [2020-10-21 22:06:57,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:57,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-21 22:06:57,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242242460] [2020-10-21 22:06:57,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 22:06:57,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:57,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 22:06:57,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:06:57,158 INFO L87 Difference]: Start difference. First operand 85 states and 141 transitions. Second operand 11 states. [2020-10-21 22:06:57,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:57,699 INFO L93 Difference]: Finished difference Result 153 states and 240 transitions. [2020-10-21 22:06:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:06:57,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-10-21 22:06:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:57,701 INFO L225 Difference]: With dead ends: 153 [2020-10-21 22:06:57,701 INFO L226 Difference]: Without dead ends: 153 [2020-10-21 22:06:57,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-21 22:06:57,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-21 22:06:57,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 94. [2020-10-21 22:06:57,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-21 22:06:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 160 transitions. [2020-10-21 22:06:57,708 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 160 transitions. Word has length 16 [2020-10-21 22:06:57,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:57,708 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 160 transitions. [2020-10-21 22:06:57,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 22:06:57,708 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 160 transitions. [2020-10-21 22:06:57,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:57,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:57,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:57,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-21 22:06:57,710 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:57,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:57,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1667139198, now seen corresponding path program 7 times [2020-10-21 22:06:57,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:57,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724776220] [2020-10-21 22:06:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:58,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:58,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724776220] [2020-10-21 22:06:58,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:58,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:58,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999912484] [2020-10-21 22:06:58,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:58,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:58,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:58,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:58,321 INFO L87 Difference]: Start difference. First operand 94 states and 160 transitions. Second operand 12 states. [2020-10-21 22:06:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:58,962 INFO L93 Difference]: Finished difference Result 111 states and 183 transitions. [2020-10-21 22:06:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:06:58,962 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:06:58,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:58,963 INFO L225 Difference]: With dead ends: 111 [2020-10-21 22:06:58,963 INFO L226 Difference]: Without dead ends: 98 [2020-10-21 22:06:58,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:06:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-21 22:06:58,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-10-21 22:06:58,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-21 22:06:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 159 transitions. [2020-10-21 22:06:58,967 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 159 transitions. Word has length 16 [2020-10-21 22:06:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:58,968 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 159 transitions. [2020-10-21 22:06:58,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:06:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 159 transitions. [2020-10-21 22:06:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:58,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:58,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:58,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-21 22:06:58,969 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:58,969 INFO L82 PathProgramCache]: Analyzing trace with hash -655668350, now seen corresponding path program 2 times [2020-10-21 22:06:58,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:58,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165189746] [2020-10-21 22:06:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:59,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165189746] [2020-10-21 22:06:59,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:59,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 22:06:59,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843291056] [2020-10-21 22:06:59,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:06:59,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:59,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:06:59,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:06:59,106 INFO L87 Difference]: Start difference. First operand 94 states and 159 transitions. Second operand 9 states. [2020-10-21 22:06:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:59,308 INFO L93 Difference]: Finished difference Result 110 states and 182 transitions. [2020-10-21 22:06:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:06:59,309 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-21 22:06:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:59,310 INFO L225 Difference]: With dead ends: 110 [2020-10-21 22:06:59,310 INFO L226 Difference]: Without dead ends: 110 [2020-10-21 22:06:59,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:06:59,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-21 22:06:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2020-10-21 22:06:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-21 22:06:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 156 transitions. [2020-10-21 22:06:59,315 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 156 transitions. Word has length 16 [2020-10-21 22:06:59,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:59,316 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 156 transitions. [2020-10-21 22:06:59,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:06:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 156 transitions. [2020-10-21 22:06:59,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:06:59,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:59,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:59,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-21 22:06:59,318 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:59,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:59,318 INFO L82 PathProgramCache]: Analyzing trace with hash 721266320, now seen corresponding path program 8 times [2020-10-21 22:06:59,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:59,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453732147] [2020-10-21 22:06:59,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:59,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453732147] [2020-10-21 22:06:59,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:59,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:06:59,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163295182] [2020-10-21 22:06:59,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:06:59,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:59,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:06:59,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:59,852 INFO L87 Difference]: Start difference. First operand 93 states and 156 transitions. Second operand 12 states. [2020-10-21 22:07:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:00,449 INFO L93 Difference]: Finished difference Result 99 states and 161 transitions. [2020-10-21 22:07:00,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:00,449 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:00,450 INFO L225 Difference]: With dead ends: 99 [2020-10-21 22:07:00,450 INFO L226 Difference]: Without dead ends: 91 [2020-10-21 22:07:00,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-21 22:07:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-10-21 22:07:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-21 22:07:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 153 transitions. [2020-10-21 22:07:00,455 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 153 transitions. Word has length 16 [2020-10-21 22:07:00,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:00,455 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 153 transitions. [2020-10-21 22:07:00,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:00,456 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 153 transitions. [2020-10-21 22:07:00,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:00,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:00,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:00,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-21 22:07:00,457 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:00,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:00,457 INFO L82 PathProgramCache]: Analyzing trace with hash -420806126, now seen corresponding path program 9 times [2020-10-21 22:07:00,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:00,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246918726] [2020-10-21 22:07:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:01,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246918726] [2020-10-21 22:07:01,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:01,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:01,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096327083] [2020-10-21 22:07:01,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:01,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:01,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:01,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:01,081 INFO L87 Difference]: Start difference. First operand 91 states and 153 transitions. Second operand 12 states. [2020-10-21 22:07:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:01,724 INFO L93 Difference]: Finished difference Result 111 states and 179 transitions. [2020-10-21 22:07:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:01,725 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:01,726 INFO L225 Difference]: With dead ends: 111 [2020-10-21 22:07:01,726 INFO L226 Difference]: Without dead ends: 98 [2020-10-21 22:07:01,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:01,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-21 22:07:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2020-10-21 22:07:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-21 22:07:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 156 transitions. [2020-10-21 22:07:01,731 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 156 transitions. Word has length 16 [2020-10-21 22:07:01,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:01,731 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 156 transitions. [2020-10-21 22:07:01,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 156 transitions. [2020-10-21 22:07:01,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:01,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:01,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:01,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-21 22:07:01,733 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:01,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:01,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1315067024, now seen corresponding path program 10 times [2020-10-21 22:07:01,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:01,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413995040] [2020-10-21 22:07:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:02,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:02,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413995040] [2020-10-21 22:07:02,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:02,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:02,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003852263] [2020-10-21 22:07:02,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:02,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:02,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:02,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:02,225 INFO L87 Difference]: Start difference. First operand 93 states and 156 transitions. Second operand 12 states. [2020-10-21 22:07:02,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:02,764 INFO L93 Difference]: Finished difference Result 104 states and 167 transitions. [2020-10-21 22:07:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:02,765 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:02,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:02,766 INFO L225 Difference]: With dead ends: 104 [2020-10-21 22:07:02,766 INFO L226 Difference]: Without dead ends: 91 [2020-10-21 22:07:02,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:02,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-21 22:07:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-10-21 22:07:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-21 22:07:02,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 151 transitions. [2020-10-21 22:07:02,770 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 151 transitions. Word has length 16 [2020-10-21 22:07:02,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:02,770 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 151 transitions. [2020-10-21 22:07:02,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:02,770 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 151 transitions. [2020-10-21 22:07:02,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:02,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:02,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:02,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-21 22:07:02,771 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:02,771 INFO L82 PathProgramCache]: Analyzing trace with hash 19209916, now seen corresponding path program 3 times [2020-10-21 22:07:02,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:02,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50921811] [2020-10-21 22:07:02,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:02,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:02,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50921811] [2020-10-21 22:07:02,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:02,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-21 22:07:02,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736171797] [2020-10-21 22:07:02,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 22:07:02,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:02,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 22:07:02,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-21 22:07:02,947 INFO L87 Difference]: Start difference. First operand 91 states and 151 transitions. Second operand 10 states. [2020-10-21 22:07:03,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:03,298 INFO L93 Difference]: Finished difference Result 94 states and 151 transitions. [2020-10-21 22:07:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:07:03,299 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-21 22:07:03,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:03,299 INFO L225 Difference]: With dead ends: 94 [2020-10-21 22:07:03,300 INFO L226 Difference]: Without dead ends: 94 [2020-10-21 22:07:03,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-21 22:07:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2020-10-21 22:07:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-21 22:07:03,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 131 transitions. [2020-10-21 22:07:03,303 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 131 transitions. Word has length 16 [2020-10-21 22:07:03,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:03,303 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 131 transitions. [2020-10-21 22:07:03,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 22:07:03,303 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 131 transitions. [2020-10-21 22:07:03,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:03,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:03,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:03,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-21 22:07:03,304 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:03,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:03,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1396144586, now seen corresponding path program 11 times [2020-10-21 22:07:03,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:03,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969771260] [2020-10-21 22:07:03,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:03,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969771260] [2020-10-21 22:07:03,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:03,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:03,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126519338] [2020-10-21 22:07:03,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:03,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:03,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:03,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:03,795 INFO L87 Difference]: Start difference. First operand 80 states and 131 transitions. Second operand 12 states. [2020-10-21 22:07:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:04,386 INFO L93 Difference]: Finished difference Result 97 states and 152 transitions. [2020-10-21 22:07:04,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:04,387 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:04,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:04,388 INFO L225 Difference]: With dead ends: 97 [2020-10-21 22:07:04,388 INFO L226 Difference]: Without dead ends: 90 [2020-10-21 22:07:04,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:04,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-21 22:07:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 79. [2020-10-21 22:07:04,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-21 22:07:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 129 transitions. [2020-10-21 22:07:04,392 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 129 transitions. Word has length 16 [2020-10-21 22:07:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:04,392 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 129 transitions. [2020-10-21 22:07:04,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 129 transitions. [2020-10-21 22:07:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:04,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:04,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:04,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-21 22:07:04,393 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:04,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:04,394 INFO L82 PathProgramCache]: Analyzing trace with hash 743612218, now seen corresponding path program 12 times [2020-10-21 22:07:04,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:04,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716173707] [2020-10-21 22:07:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:04,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716173707] [2020-10-21 22:07:04,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:04,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:04,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585634700] [2020-10-21 22:07:04,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:04,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:04,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:04,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:04,903 INFO L87 Difference]: Start difference. First operand 79 states and 129 transitions. Second operand 12 states. [2020-10-21 22:07:05,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:05,449 INFO L93 Difference]: Finished difference Result 90 states and 140 transitions. [2020-10-21 22:07:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:05,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:05,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:05,451 INFO L225 Difference]: With dead ends: 90 [2020-10-21 22:07:05,451 INFO L226 Difference]: Without dead ends: 73 [2020-10-21 22:07:05,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-21 22:07:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-21 22:07:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-21 22:07:05,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 119 transitions. [2020-10-21 22:07:05,454 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 119 transitions. Word has length 16 [2020-10-21 22:07:05,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:05,454 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 119 transitions. [2020-10-21 22:07:05,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:05,455 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 119 transitions. [2020-10-21 22:07:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:05,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:05,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:05,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-21 22:07:05,456 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:05,456 INFO L82 PathProgramCache]: Analyzing trace with hash 761924480, now seen corresponding path program 13 times [2020-10-21 22:07:05,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:05,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683683916] [2020-10-21 22:07:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:06,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683683916] [2020-10-21 22:07:06,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:06,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:06,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518269549] [2020-10-21 22:07:06,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:06,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:06,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:06,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:06,010 INFO L87 Difference]: Start difference. First operand 73 states and 119 transitions. Second operand 12 states. [2020-10-21 22:07:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:06,626 INFO L93 Difference]: Finished difference Result 98 states and 157 transitions. [2020-10-21 22:07:06,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:06,626 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:06,627 INFO L225 Difference]: With dead ends: 98 [2020-10-21 22:07:06,627 INFO L226 Difference]: Without dead ends: 81 [2020-10-21 22:07:06,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:06,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-21 22:07:06,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2020-10-21 22:07:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-21 22:07:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 122 transitions. [2020-10-21 22:07:06,631 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 122 transitions. Word has length 16 [2020-10-21 22:07:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:06,632 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 122 transitions. [2020-10-21 22:07:06,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:06,632 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 122 transitions. [2020-10-21 22:07:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:06,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:06,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:06,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-21 22:07:06,633 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:06,633 INFO L82 PathProgramCache]: Analyzing trace with hash 322652610, now seen corresponding path program 14 times [2020-10-21 22:07:06,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:06,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494088034] [2020-10-21 22:07:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:07,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494088034] [2020-10-21 22:07:07,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:07,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:07,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035674699] [2020-10-21 22:07:07,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:07,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:07,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:07,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:07,211 INFO L87 Difference]: Start difference. First operand 75 states and 122 transitions. Second operand 12 states. [2020-10-21 22:07:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:07,822 INFO L93 Difference]: Finished difference Result 95 states and 148 transitions. [2020-10-21 22:07:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:07,823 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:07,824 INFO L225 Difference]: With dead ends: 95 [2020-10-21 22:07:07,824 INFO L226 Difference]: Without dead ends: 82 [2020-10-21 22:07:07,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:07,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-21 22:07:07,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2020-10-21 22:07:07,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-21 22:07:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 125 transitions. [2020-10-21 22:07:07,827 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 125 transitions. Word has length 16 [2020-10-21 22:07:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:07,828 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 125 transitions. [2020-10-21 22:07:07,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 125 transitions. [2020-10-21 22:07:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:07,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:07,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:07,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-21 22:07:07,829 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:07,829 INFO L82 PathProgramCache]: Analyzing trace with hash 2058525760, now seen corresponding path program 15 times [2020-10-21 22:07:07,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:07,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265178019] [2020-10-21 22:07:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:08,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:08,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265178019] [2020-10-21 22:07:08,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:08,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:08,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132868607] [2020-10-21 22:07:08,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:08,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:08,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:08,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:08,314 INFO L87 Difference]: Start difference. First operand 77 states and 125 transitions. Second operand 12 states. [2020-10-21 22:07:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:08,784 INFO L93 Difference]: Finished difference Result 88 states and 136 transitions. [2020-10-21 22:07:08,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:08,784 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:08,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:08,785 INFO L225 Difference]: With dead ends: 88 [2020-10-21 22:07:08,785 INFO L226 Difference]: Without dead ends: 69 [2020-10-21 22:07:08,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-21 22:07:08,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-21 22:07:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-21 22:07:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 112 transitions. [2020-10-21 22:07:08,788 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 112 transitions. Word has length 16 [2020-10-21 22:07:08,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:08,788 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 112 transitions. [2020-10-21 22:07:08,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 112 transitions. [2020-10-21 22:07:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:08,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:08,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:08,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-21 22:07:08,789 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:08,789 INFO L82 PathProgramCache]: Analyzing trace with hash 185049416, now seen corresponding path program 16 times [2020-10-21 22:07:08,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:08,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212010159] [2020-10-21 22:07:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:09,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:09,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212010159] [2020-10-21 22:07:09,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:09,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:09,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810078671] [2020-10-21 22:07:09,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:09,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:09,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:09,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:09,397 INFO L87 Difference]: Start difference. First operand 69 states and 112 transitions. Second operand 12 states. [2020-10-21 22:07:09,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:09,982 INFO L93 Difference]: Finished difference Result 89 states and 142 transitions. [2020-10-21 22:07:09,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:09,982 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:09,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:09,983 INFO L225 Difference]: With dead ends: 89 [2020-10-21 22:07:09,983 INFO L226 Difference]: Without dead ends: 75 [2020-10-21 22:07:09,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-21 22:07:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2020-10-21 22:07:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-21 22:07:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 113 transitions. [2020-10-21 22:07:09,986 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 113 transitions. Word has length 16 [2020-10-21 22:07:09,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:09,986 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 113 transitions. [2020-10-21 22:07:09,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:09,986 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 113 transitions. [2020-10-21 22:07:09,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:09,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:09,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:09,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-21 22:07:09,987 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:09,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:09,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1500555548, now seen corresponding path program 5 times [2020-10-21 22:07:09,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:09,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64903577] [2020-10-21 22:07:09,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:10,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64903577] [2020-10-21 22:07:10,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:10,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-21 22:07:10,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413418480] [2020-10-21 22:07:10,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 22:07:10,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:10,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 22:07:10,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:07:10,482 INFO L87 Difference]: Start difference. First operand 70 states and 113 transitions. Second operand 11 states. [2020-10-21 22:07:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:11,283 INFO L93 Difference]: Finished difference Result 111 states and 169 transitions. [2020-10-21 22:07:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-21 22:07:11,283 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-10-21 22:07:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:11,284 INFO L225 Difference]: With dead ends: 111 [2020-10-21 22:07:11,284 INFO L226 Difference]: Without dead ends: 111 [2020-10-21 22:07:11,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:07:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-21 22:07:11,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 74. [2020-10-21 22:07:11,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-21 22:07:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 119 transitions. [2020-10-21 22:07:11,288 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 119 transitions. Word has length 16 [2020-10-21 22:07:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:11,288 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 119 transitions. [2020-10-21 22:07:11,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 22:07:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 119 transitions. [2020-10-21 22:07:11,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:11,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:11,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:11,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-21 22:07:11,290 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:11,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:11,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1500555526, now seen corresponding path program 17 times [2020-10-21 22:07:11,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:11,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939837625] [2020-10-21 22:07:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:11,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939837625] [2020-10-21 22:07:11,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:11,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:11,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438748951] [2020-10-21 22:07:11,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:11,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:11,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:11,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:11,894 INFO L87 Difference]: Start difference. First operand 74 states and 119 transitions. Second operand 12 states. [2020-10-21 22:07:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:12,489 INFO L93 Difference]: Finished difference Result 87 states and 136 transitions. [2020-10-21 22:07:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:12,490 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:12,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:12,490 INFO L225 Difference]: With dead ends: 87 [2020-10-21 22:07:12,491 INFO L226 Difference]: Without dead ends: 77 [2020-10-21 22:07:12,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:12,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-21 22:07:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2020-10-21 22:07:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-21 22:07:12,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 120 transitions. [2020-10-21 22:07:12,493 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 120 transitions. Word has length 16 [2020-10-21 22:07:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:12,494 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 120 transitions. [2020-10-21 22:07:12,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:12,494 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 120 transitions. [2020-10-21 22:07:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:12,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:12,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:12,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-21 22:07:12,495 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:12,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:12,495 INFO L82 PathProgramCache]: Analyzing trace with hash 887849992, now seen corresponding path program 18 times [2020-10-21 22:07:12,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:12,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024562764] [2020-10-21 22:07:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:13,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:13,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024562764] [2020-10-21 22:07:13,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:13,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:13,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758441231] [2020-10-21 22:07:13,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:13,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:13,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:13,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:13,022 INFO L87 Difference]: Start difference. First operand 75 states and 120 transitions. Second operand 12 states. [2020-10-21 22:07:13,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:13,693 INFO L93 Difference]: Finished difference Result 91 states and 142 transitions. [2020-10-21 22:07:13,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:13,694 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:13,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:13,695 INFO L225 Difference]: With dead ends: 91 [2020-10-21 22:07:13,695 INFO L226 Difference]: Without dead ends: 82 [2020-10-21 22:07:13,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-21 22:07:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73. [2020-10-21 22:07:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-21 22:07:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 117 transitions. [2020-10-21 22:07:13,700 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 117 transitions. Word has length 16 [2020-10-21 22:07:13,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:13,701 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 117 transitions. [2020-10-21 22:07:13,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:13,701 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 117 transitions. [2020-10-21 22:07:13,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:13,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:13,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:13,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-21 22:07:13,701 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:13,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:13,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1175593484, now seen corresponding path program 19 times [2020-10-21 22:07:13,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:13,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895584094] [2020-10-21 22:07:13,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:14,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895584094] [2020-10-21 22:07:14,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:14,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:14,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926442562] [2020-10-21 22:07:14,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:14,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:14,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:14,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:14,285 INFO L87 Difference]: Start difference. First operand 73 states and 117 transitions. Second operand 12 states. [2020-10-21 22:07:15,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:15,013 INFO L93 Difference]: Finished difference Result 85 states and 132 transitions. [2020-10-21 22:07:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:15,014 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:15,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:15,015 INFO L225 Difference]: With dead ends: 85 [2020-10-21 22:07:15,016 INFO L226 Difference]: Without dead ends: 75 [2020-10-21 22:07:15,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-21 22:07:15,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2020-10-21 22:07:15,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-21 22:07:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 116 transitions. [2020-10-21 22:07:15,019 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 116 transitions. Word has length 16 [2020-10-21 22:07:15,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:15,020 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 116 transitions. [2020-10-21 22:07:15,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:15,020 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 116 transitions. [2020-10-21 22:07:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:15,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:15,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:15,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-21 22:07:15,021 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:15,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:15,022 INFO L82 PathProgramCache]: Analyzing trace with hash -730968294, now seen corresponding path program 20 times [2020-10-21 22:07:15,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:15,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863571488] [2020-10-21 22:07:15,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:15,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863571488] [2020-10-21 22:07:15,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:15,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:15,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983655478] [2020-10-21 22:07:15,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:15,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:15,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:15,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:15,685 INFO L87 Difference]: Start difference. First operand 73 states and 116 transitions. Second operand 12 states. [2020-10-21 22:07:16,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:16,398 INFO L93 Difference]: Finished difference Result 81 states and 124 transitions. [2020-10-21 22:07:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:16,398 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:16,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:16,399 INFO L225 Difference]: With dead ends: 81 [2020-10-21 22:07:16,399 INFO L226 Difference]: Without dead ends: 73 [2020-10-21 22:07:16,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:16,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-21 22:07:16,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2020-10-21 22:07:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-21 22:07:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 114 transitions. [2020-10-21 22:07:16,403 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 114 transitions. Word has length 16 [2020-10-21 22:07:16,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:16,403 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 114 transitions. [2020-10-21 22:07:16,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:16,404 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 114 transitions. [2020-10-21 22:07:16,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:16,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:16,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:16,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-21 22:07:16,405 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:16,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:16,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1260067276, now seen corresponding path program 21 times [2020-10-21 22:07:16,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:16,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204972857] [2020-10-21 22:07:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:17,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204972857] [2020-10-21 22:07:17,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:17,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:17,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965465030] [2020-10-21 22:07:17,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:17,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:17,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:17,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:17,007 INFO L87 Difference]: Start difference. First operand 72 states and 114 transitions. Second operand 12 states. [2020-10-21 22:07:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:17,507 INFO L93 Difference]: Finished difference Result 80 states and 122 transitions. [2020-10-21 22:07:17,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:17,508 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:17,509 INFO L225 Difference]: With dead ends: 80 [2020-10-21 22:07:17,509 INFO L226 Difference]: Without dead ends: 70 [2020-10-21 22:07:17,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-21 22:07:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-21 22:07:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-21 22:07:17,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 109 transitions. [2020-10-21 22:07:17,511 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 109 transitions. Word has length 16 [2020-10-21 22:07:17,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:17,512 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 109 transitions. [2020-10-21 22:07:17,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:17,512 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 109 transitions. [2020-10-21 22:07:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:17,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:17,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:17,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-21 22:07:17,513 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:17,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1921734704, now seen corresponding path program 22 times [2020-10-21 22:07:17,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:17,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150532708] [2020-10-21 22:07:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:18,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:18,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150532708] [2020-10-21 22:07:18,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:18,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:18,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640178820] [2020-10-21 22:07:18,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:18,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:18,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:18,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:18,124 INFO L87 Difference]: Start difference. First operand 68 states and 109 transitions. Second operand 12 states. [2020-10-21 22:07:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:18,687 INFO L93 Difference]: Finished difference Result 84 states and 132 transitions. [2020-10-21 22:07:18,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:18,687 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:18,688 INFO L225 Difference]: With dead ends: 84 [2020-10-21 22:07:18,688 INFO L226 Difference]: Without dead ends: 70 [2020-10-21 22:07:18,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:18,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-21 22:07:18,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2020-10-21 22:07:18,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-21 22:07:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 103 transitions. [2020-10-21 22:07:18,692 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 103 transitions. Word has length 16 [2020-10-21 22:07:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:18,693 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 103 transitions. [2020-10-21 22:07:18,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 103 transitions. [2020-10-21 22:07:18,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:18,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:18,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:18,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-21 22:07:18,694 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:18,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:18,694 INFO L82 PathProgramCache]: Analyzing trace with hash 687627628, now seen corresponding path program 6 times [2020-10-21 22:07:18,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:18,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134463474] [2020-10-21 22:07:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:19,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134463474] [2020-10-21 22:07:19,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:19,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-21 22:07:19,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58540139] [2020-10-21 22:07:19,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 22:07:19,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:19,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 22:07:19,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:07:19,225 INFO L87 Difference]: Start difference. First operand 65 states and 103 transitions. Second operand 11 states. [2020-10-21 22:07:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:19,988 INFO L93 Difference]: Finished difference Result 99 states and 144 transitions. [2020-10-21 22:07:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:19,989 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-10-21 22:07:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:19,990 INFO L225 Difference]: With dead ends: 99 [2020-10-21 22:07:19,990 INFO L226 Difference]: Without dead ends: 99 [2020-10-21 22:07:19,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:07:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-21 22:07:19,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 69. [2020-10-21 22:07:19,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-21 22:07:19,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 109 transitions. [2020-10-21 22:07:19,993 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 109 transitions. Word has length 16 [2020-10-21 22:07:19,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:19,993 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 109 transitions. [2020-10-21 22:07:19,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 22:07:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 109 transitions. [2020-10-21 22:07:19,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:19,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:19,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:19,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-21 22:07:19,994 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:19,994 INFO L82 PathProgramCache]: Analyzing trace with hash 687627650, now seen corresponding path program 23 times [2020-10-21 22:07:19,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:19,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496029154] [2020-10-21 22:07:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:20,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496029154] [2020-10-21 22:07:20,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:20,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:20,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586828150] [2020-10-21 22:07:20,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:20,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:20,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:20,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:20,582 INFO L87 Difference]: Start difference. First operand 69 states and 109 transitions. Second operand 12 states. [2020-10-21 22:07:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:21,237 INFO L93 Difference]: Finished difference Result 79 states and 121 transitions. [2020-10-21 22:07:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:21,238 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:21,239 INFO L225 Difference]: With dead ends: 79 [2020-10-21 22:07:21,239 INFO L226 Difference]: Without dead ends: 69 [2020-10-21 22:07:21,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:21,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-21 22:07:21,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2020-10-21 22:07:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-21 22:07:21,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 106 transitions. [2020-10-21 22:07:21,242 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 106 transitions. Word has length 16 [2020-10-21 22:07:21,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:21,242 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 106 transitions. [2020-10-21 22:07:21,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 106 transitions. [2020-10-21 22:07:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:21,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:21,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:21,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-21 22:07:21,243 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:21,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:21,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1218934128, now seen corresponding path program 24 times [2020-10-21 22:07:21,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:21,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783261266] [2020-10-21 22:07:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:21,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783261266] [2020-10-21 22:07:21,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:21,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:21,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804880795] [2020-10-21 22:07:21,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:21,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:21,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:21,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:21,869 INFO L87 Difference]: Start difference. First operand 68 states and 106 transitions. Second operand 12 states. [2020-10-21 22:07:22,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:22,506 INFO L93 Difference]: Finished difference Result 78 states and 119 transitions. [2020-10-21 22:07:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:22,507 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:22,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:22,507 INFO L225 Difference]: With dead ends: 78 [2020-10-21 22:07:22,508 INFO L226 Difference]: Without dead ends: 69 [2020-10-21 22:07:22,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-21 22:07:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 64. [2020-10-21 22:07:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-21 22:07:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 101 transitions. [2020-10-21 22:07:22,510 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 101 transitions. Word has length 16 [2020-10-21 22:07:22,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:22,510 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 101 transitions. [2020-10-21 22:07:22,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:22,511 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 101 transitions. [2020-10-21 22:07:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:22,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:22,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:22,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-21 22:07:22,512 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:22,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:22,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1940115136, now seen corresponding path program 25 times [2020-10-21 22:07:22,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:22,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109811] [2020-10-21 22:07:22,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:23,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:23,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109811] [2020-10-21 22:07:23,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:23,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:23,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098750448] [2020-10-21 22:07:23,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:23,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:23,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:23,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:23,090 INFO L87 Difference]: Start difference. First operand 64 states and 101 transitions. Second operand 12 states. [2020-10-21 22:07:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:23,621 INFO L93 Difference]: Finished difference Result 80 states and 122 transitions. [2020-10-21 22:07:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:23,622 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:23,623 INFO L225 Difference]: With dead ends: 80 [2020-10-21 22:07:23,623 INFO L226 Difference]: Without dead ends: 63 [2020-10-21 22:07:23,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-21 22:07:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2020-10-21 22:07:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-21 22:07:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 93 transitions. [2020-10-21 22:07:23,626 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 93 transitions. Word has length 16 [2020-10-21 22:07:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:23,626 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 93 transitions. [2020-10-21 22:07:23,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:23,627 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2020-10-21 22:07:23,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:23,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:23,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:23,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-21 22:07:23,628 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:23,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1915580290, now seen corresponding path program 26 times [2020-10-21 22:07:23,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:23,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48455308] [2020-10-21 22:07:23,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:24,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48455308] [2020-10-21 22:07:24,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:24,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:24,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286287845] [2020-10-21 22:07:24,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:24,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:24,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:24,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:24,177 INFO L87 Difference]: Start difference. First operand 60 states and 93 transitions. Second operand 12 states. [2020-10-21 22:07:24,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:24,738 INFO L93 Difference]: Finished difference Result 69 states and 102 transitions. [2020-10-21 22:07:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:24,739 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:24,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:24,739 INFO L225 Difference]: With dead ends: 69 [2020-10-21 22:07:24,739 INFO L226 Difference]: Without dead ends: 56 [2020-10-21 22:07:24,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:24,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-21 22:07:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-21 22:07:24,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-21 22:07:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 85 transitions. [2020-10-21 22:07:24,742 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 85 transitions. Word has length 16 [2020-10-21 22:07:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:24,742 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 85 transitions. [2020-10-21 22:07:24,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 85 transitions. [2020-10-21 22:07:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:24,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:24,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:24,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-21 22:07:24,743 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:24,743 INFO L82 PathProgramCache]: Analyzing trace with hash -643513856, now seen corresponding path program 27 times [2020-10-21 22:07:24,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:24,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887326795] [2020-10-21 22:07:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:25,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887326795] [2020-10-21 22:07:25,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:25,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:25,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151827971] [2020-10-21 22:07:25,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:25,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:25,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:25,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:25,264 INFO L87 Difference]: Start difference. First operand 56 states and 85 transitions. Second operand 12 states. [2020-10-21 22:07:25,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:25,699 INFO L93 Difference]: Finished difference Result 56 states and 84 transitions. [2020-10-21 22:07:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:25,700 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:25,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:25,700 INFO L225 Difference]: With dead ends: 56 [2020-10-21 22:07:25,700 INFO L226 Difference]: Without dead ends: 41 [2020-10-21 22:07:25,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:25,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-21 22:07:25,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-21 22:07:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-21 22:07:25,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 65 transitions. [2020-10-21 22:07:25,702 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 65 transitions. Word has length 16 [2020-10-21 22:07:25,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:25,702 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 65 transitions. [2020-10-21 22:07:25,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:25,703 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 65 transitions. [2020-10-21 22:07:25,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:25,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:25,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:25,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-21 22:07:25,703 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:25,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:25,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1217605878, now seen corresponding path program 7 times [2020-10-21 22:07:25,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:25,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024740051] [2020-10-21 22:07:25,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:26,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024740051] [2020-10-21 22:07:26,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:26,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-21 22:07:26,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252854071] [2020-10-21 22:07:26,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 22:07:26,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:26,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 22:07:26,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:07:26,206 INFO L87 Difference]: Start difference. First operand 41 states and 65 transitions. Second operand 11 states. [2020-10-21 22:07:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:27,020 INFO L93 Difference]: Finished difference Result 67 states and 104 transitions. [2020-10-21 22:07:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:27,020 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-10-21 22:07:27,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:27,021 INFO L225 Difference]: With dead ends: 67 [2020-10-21 22:07:27,021 INFO L226 Difference]: Without dead ends: 67 [2020-10-21 22:07:27,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:07:27,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-21 22:07:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2020-10-21 22:07:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-21 22:07:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 104 transitions. [2020-10-21 22:07:27,025 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 104 transitions. Word has length 16 [2020-10-21 22:07:27,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:27,025 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 104 transitions. [2020-10-21 22:07:27,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 22:07:27,025 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 104 transitions. [2020-10-21 22:07:27,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:27,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:27,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:27,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-21 22:07:27,026 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:27,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:27,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1217605900, now seen corresponding path program 28 times [2020-10-21 22:07:27,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:27,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011104864] [2020-10-21 22:07:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:27,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011104864] [2020-10-21 22:07:27,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:27,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:27,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132677487] [2020-10-21 22:07:27,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:27,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:27,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:27,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:27,593 INFO L87 Difference]: Start difference. First operand 66 states and 104 transitions. Second operand 12 states. [2020-10-21 22:07:28,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:28,210 INFO L93 Difference]: Finished difference Result 76 states and 115 transitions. [2020-10-21 22:07:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:28,210 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:28,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:28,211 INFO L225 Difference]: With dead ends: 76 [2020-10-21 22:07:28,211 INFO L226 Difference]: Without dead ends: 66 [2020-10-21 22:07:28,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-21 22:07:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2020-10-21 22:07:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-21 22:07:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 101 transitions. [2020-10-21 22:07:28,214 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 101 transitions. Word has length 16 [2020-10-21 22:07:28,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:28,214 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 101 transitions. [2020-10-21 22:07:28,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 101 transitions. [2020-10-21 22:07:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:28,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:28,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:28,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-21 22:07:28,215 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:28,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:28,216 INFO L82 PathProgramCache]: Analyzing trace with hash -688955878, now seen corresponding path program 29 times [2020-10-21 22:07:28,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:28,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364226285] [2020-10-21 22:07:28,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:28,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364226285] [2020-10-21 22:07:28,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:28,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:28,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732808009] [2020-10-21 22:07:28,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:28,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:28,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:28,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:28,730 INFO L87 Difference]: Start difference. First operand 65 states and 101 transitions. Second operand 12 states. [2020-10-21 22:07:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:29,296 INFO L93 Difference]: Finished difference Result 72 states and 107 transitions. [2020-10-21 22:07:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:29,297 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:29,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:29,298 INFO L225 Difference]: With dead ends: 72 [2020-10-21 22:07:29,298 INFO L226 Difference]: Without dead ends: 64 [2020-10-21 22:07:29,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:29,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-21 22:07:29,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-21 22:07:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-21 22:07:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 99 transitions. [2020-10-21 22:07:29,301 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 99 transitions. Word has length 16 [2020-10-21 22:07:29,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:29,301 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 99 transitions. [2020-10-21 22:07:29,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 99 transitions. [2020-10-21 22:07:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:29,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:29,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:29,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-21 22:07:29,303 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:29,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:29,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1831028324, now seen corresponding path program 30 times [2020-10-21 22:07:29,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:29,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330046545] [2020-10-21 22:07:29,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:29,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330046545] [2020-10-21 22:07:29,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:29,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:29,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311889613] [2020-10-21 22:07:29,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:29,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:29,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:29,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:29,938 INFO L87 Difference]: Start difference. First operand 64 states and 99 transitions. Second operand 12 states. [2020-10-21 22:07:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:30,515 INFO L93 Difference]: Finished difference Result 78 states and 114 transitions. [2020-10-21 22:07:30,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:30,516 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:30,517 INFO L225 Difference]: With dead ends: 78 [2020-10-21 22:07:30,517 INFO L226 Difference]: Without dead ends: 65 [2020-10-21 22:07:30,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:30,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-21 22:07:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 60. [2020-10-21 22:07:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-21 22:07:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 91 transitions. [2020-10-21 22:07:30,520 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 91 transitions. Word has length 16 [2020-10-21 22:07:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:30,520 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 91 transitions. [2020-10-21 22:07:30,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 91 transitions. [2020-10-21 22:07:30,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:30,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:30,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:30,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-21 22:07:30,521 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:30,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash -95155174, now seen corresponding path program 31 times [2020-10-21 22:07:30,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:30,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104941138] [2020-10-21 22:07:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:31,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104941138] [2020-10-21 22:07:31,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:31,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:31,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070952980] [2020-10-21 22:07:31,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:31,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:31,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:31,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:31,093 INFO L87 Difference]: Start difference. First operand 60 states and 91 transitions. Second operand 12 states. [2020-10-21 22:07:31,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:31,653 INFO L93 Difference]: Finished difference Result 71 states and 102 transitions. [2020-10-21 22:07:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:31,654 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:31,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:31,654 INFO L225 Difference]: With dead ends: 71 [2020-10-21 22:07:31,654 INFO L226 Difference]: Without dead ends: 58 [2020-10-21 22:07:31,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-21 22:07:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-21 22:07:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-21 22:07:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 86 transitions. [2020-10-21 22:07:31,658 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 86 transitions. Word has length 16 [2020-10-21 22:07:31,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:31,658 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 86 transitions. [2020-10-21 22:07:31,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 86 transitions. [2020-10-21 22:07:31,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:31,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:31,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:31,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-21 22:07:31,659 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:31,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:31,659 INFO L82 PathProgramCache]: Analyzing trace with hash -14077612, now seen corresponding path program 32 times [2020-10-21 22:07:31,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:31,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558233562] [2020-10-21 22:07:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:32,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:32,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558233562] [2020-10-21 22:07:32,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:32,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:32,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850507071] [2020-10-21 22:07:32,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:32,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:32,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:32,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:32,282 INFO L87 Difference]: Start difference. First operand 58 states and 86 transitions. Second operand 12 states. [2020-10-21 22:07:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:32,884 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-10-21 22:07:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:32,885 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:32,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:32,885 INFO L225 Difference]: With dead ends: 66 [2020-10-21 22:07:32,886 INFO L226 Difference]: Without dead ends: 59 [2020-10-21 22:07:32,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:32,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-21 22:07:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2020-10-21 22:07:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-21 22:07:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 83 transitions. [2020-10-21 22:07:32,888 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 83 transitions. Word has length 16 [2020-10-21 22:07:32,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:32,888 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 83 transitions. [2020-10-21 22:07:32,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions. [2020-10-21 22:07:32,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:32,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:32,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:32,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-21 22:07:32,889 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:32,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:32,890 INFO L82 PathProgramCache]: Analyzing trace with hash -666609980, now seen corresponding path program 33 times [2020-10-21 22:07:32,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:32,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424814387] [2020-10-21 22:07:32,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:33,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424814387] [2020-10-21 22:07:33,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:33,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:33,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751253366] [2020-10-21 22:07:33,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:33,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:33,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:33,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:33,380 INFO L87 Difference]: Start difference. First operand 56 states and 83 transitions. Second operand 12 states. [2020-10-21 22:07:33,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:33,866 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2020-10-21 22:07:33,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:33,867 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:33,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:33,868 INFO L225 Difference]: With dead ends: 56 [2020-10-21 22:07:33,868 INFO L226 Difference]: Without dead ends: 39 [2020-10-21 22:07:33,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:33,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-21 22:07:33,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-21 22:07:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-21 22:07:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 60 transitions. [2020-10-21 22:07:33,871 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 60 transitions. Word has length 16 [2020-10-21 22:07:33,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:33,871 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 60 transitions. [2020-10-21 22:07:33,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2020-10-21 22:07:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:33,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:33,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:33,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-21 22:07:33,872 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:33,873 INFO L82 PathProgramCache]: Analyzing trace with hash 425050028, now seen corresponding path program 8 times [2020-10-21 22:07:33,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:33,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113176572] [2020-10-21 22:07:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:34,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113176572] [2020-10-21 22:07:34,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:34,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:34,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217805643] [2020-10-21 22:07:34,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:34,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:34,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:34,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:34,371 INFO L87 Difference]: Start difference. First operand 39 states and 60 transitions. Second operand 12 states. [2020-10-21 22:07:35,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:35,068 INFO L93 Difference]: Finished difference Result 51 states and 76 transitions. [2020-10-21 22:07:35,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:35,069 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:35,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:35,069 INFO L225 Difference]: With dead ends: 51 [2020-10-21 22:07:35,069 INFO L226 Difference]: Without dead ends: 51 [2020-10-21 22:07:35,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:07:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-21 22:07:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-21 22:07:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-21 22:07:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 76 transitions. [2020-10-21 22:07:35,072 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 76 transitions. Word has length 16 [2020-10-21 22:07:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:35,072 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 76 transitions. [2020-10-21 22:07:35,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2020-10-21 22:07:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:35,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:35,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:35,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-21 22:07:35,073 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:35,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:35,074 INFO L82 PathProgramCache]: Analyzing trace with hash 425050050, now seen corresponding path program 34 times [2020-10-21 22:07:35,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:35,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8980354] [2020-10-21 22:07:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:35,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8980354] [2020-10-21 22:07:35,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:35,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:35,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025284811] [2020-10-21 22:07:35,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:35,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:35,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:35,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:35,678 INFO L87 Difference]: Start difference. First operand 51 states and 76 transitions. Second operand 12 states. [2020-10-21 22:07:36,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:36,295 INFO L93 Difference]: Finished difference Result 60 states and 84 transitions. [2020-10-21 22:07:36,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:36,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:36,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:36,296 INFO L225 Difference]: With dead ends: 60 [2020-10-21 22:07:36,296 INFO L226 Difference]: Without dead ends: 50 [2020-10-21 22:07:36,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:36,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-21 22:07:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2020-10-21 22:07:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-21 22:07:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-10-21 22:07:36,299 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 16 [2020-10-21 22:07:36,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:36,299 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-10-21 22:07:36,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-10-21 22:07:36,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:36,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:36,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:36,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-21 22:07:36,300 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:36,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:36,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1481511728, now seen corresponding path program 35 times [2020-10-21 22:07:36,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:36,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607756745] [2020-10-21 22:07:36,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:36,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:36,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607756745] [2020-10-21 22:07:36,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:36,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:36,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715665505] [2020-10-21 22:07:36,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:36,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:36,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:36,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:36,830 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 12 states. [2020-10-21 22:07:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:37,410 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-10-21 22:07:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:37,410 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:37,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:37,411 INFO L225 Difference]: With dead ends: 54 [2020-10-21 22:07:37,411 INFO L226 Difference]: Without dead ends: 46 [2020-10-21 22:07:37,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:37,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-21 22:07:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-21 22:07:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-21 22:07:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2020-10-21 22:07:37,414 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 16 [2020-10-21 22:07:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:37,414 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2020-10-21 22:07:37,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2020-10-21 22:07:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:37,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:37,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:37,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-21 22:07:37,415 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:37,416 INFO L82 PathProgramCache]: Analyzing trace with hash 509523842, now seen corresponding path program 36 times [2020-10-21 22:07:37,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:37,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260197667] [2020-10-21 22:07:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:37,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260197667] [2020-10-21 22:07:37,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:37,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:37,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564833721] [2020-10-21 22:07:37,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:37,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:37,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:37,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:37,985 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand 12 states. [2020-10-21 22:07:38,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:38,486 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2020-10-21 22:07:38,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:38,487 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:38,487 INFO L225 Difference]: With dead ends: 55 [2020-10-21 22:07:38,487 INFO L226 Difference]: Without dead ends: 46 [2020-10-21 22:07:38,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-21 22:07:38,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2020-10-21 22:07:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-21 22:07:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-10-21 22:07:38,489 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 16 [2020-10-21 22:07:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:38,490 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-10-21 22:07:38,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-10-21 22:07:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:38,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:38,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:38,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-21 22:07:38,490 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:38,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:38,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1721120732, now seen corresponding path program 9 times [2020-10-21 22:07:38,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:38,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71019969] [2020-10-21 22:07:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:39,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71019969] [2020-10-21 22:07:39,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:39,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:39,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288646618] [2020-10-21 22:07:39,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:39,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:39,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:39,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:39,145 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 12 states. [2020-10-21 22:07:39,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:39,622 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2020-10-21 22:07:39,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:07:39,623 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:39,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:39,624 INFO L225 Difference]: With dead ends: 45 [2020-10-21 22:07:39,624 INFO L226 Difference]: Without dead ends: 45 [2020-10-21 22:07:39,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-21 22:07:39,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-21 22:07:39,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2020-10-21 22:07:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-21 22:07:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 56 transitions. [2020-10-21 22:07:39,626 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 56 transitions. Word has length 16 [2020-10-21 22:07:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:39,627 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 56 transitions. [2020-10-21 22:07:39,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 56 transitions. [2020-10-21 22:07:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:39,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:39,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:39,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-21 22:07:39,628 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:39,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:39,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1721120710, now seen corresponding path program 37 times [2020-10-21 22:07:39,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:39,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281022515] [2020-10-21 22:07:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:40,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281022515] [2020-10-21 22:07:40,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:40,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:40,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476682755] [2020-10-21 22:07:40,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:40,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:40,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:40,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:40,227 INFO L87 Difference]: Start difference. First operand 37 states and 56 transitions. Second operand 12 states. [2020-10-21 22:07:40,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:40,811 INFO L93 Difference]: Finished difference Result 47 states and 67 transitions. [2020-10-21 22:07:40,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:40,812 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:40,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:40,812 INFO L225 Difference]: With dead ends: 47 [2020-10-21 22:07:40,812 INFO L226 Difference]: Without dead ends: 37 [2020-10-21 22:07:40,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:40,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-21 22:07:40,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2020-10-21 22:07:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-21 22:07:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2020-10-21 22:07:40,814 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 16 [2020-10-21 22:07:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:40,814 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2020-10-21 22:07:40,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2020-10-21 22:07:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:40,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:40,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:40,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-21 22:07:40,815 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:40,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:40,815 INFO L82 PathProgramCache]: Analyzing trace with hash 667284808, now seen corresponding path program 38 times [2020-10-21 22:07:40,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:40,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446848024] [2020-10-21 22:07:40,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:41,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446848024] [2020-10-21 22:07:41,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:41,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:41,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678323458] [2020-10-21 22:07:41,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:41,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:41,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:41,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:41,384 INFO L87 Difference]: Start difference. First operand 36 states and 53 transitions. Second operand 12 states. [2020-10-21 22:07:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:41,937 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2020-10-21 22:07:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:41,938 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:41,938 INFO L225 Difference]: With dead ends: 43 [2020-10-21 22:07:41,939 INFO L226 Difference]: Without dead ends: 35 [2020-10-21 22:07:41,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-21 22:07:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-21 22:07:41,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-21 22:07:41,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 51 transitions. [2020-10-21 22:07:41,940 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 51 transitions. Word has length 16 [2020-10-21 22:07:41,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:41,940 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 51 transitions. [2020-10-21 22:07:41,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2020-10-21 22:07:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:41,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:41,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:41,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-21 22:07:41,941 INFO L429 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:41,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:41,941 INFO L82 PathProgramCache]: Analyzing trace with hash -474787638, now seen corresponding path program 39 times [2020-10-21 22:07:41,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:41,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398253649] [2020-10-21 22:07:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:42,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398253649] [2020-10-21 22:07:42,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:42,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:42,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572643547] [2020-10-21 22:07:42,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:42,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:42,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:42,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:42,523 INFO L87 Difference]: Start difference. First operand 35 states and 51 transitions. Second operand 12 states. [2020-10-21 22:07:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:43,054 INFO L93 Difference]: Finished difference Result 49 states and 66 transitions. [2020-10-21 22:07:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:43,055 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:43,055 INFO L225 Difference]: With dead ends: 49 [2020-10-21 22:07:43,055 INFO L226 Difference]: Without dead ends: 36 [2020-10-21 22:07:43,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:43,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-21 22:07:43,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-10-21 22:07:43,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-21 22:07:43,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-21 22:07:43,057 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 16 [2020-10-21 22:07:43,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:43,058 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-21 22:07:43,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:43,058 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-10-21 22:07:43,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:43,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:43,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:43,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-21 22:07:43,059 INFO L429 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:43,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:43,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1261085512, now seen corresponding path program 40 times [2020-10-21 22:07:43,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:43,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4412268] [2020-10-21 22:07:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:43,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4412268] [2020-10-21 22:07:43,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:43,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:43,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783182889] [2020-10-21 22:07:43,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:43,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:43,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:43,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:43,621 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 12 states. [2020-10-21 22:07:44,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:44,114 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2020-10-21 22:07:44,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:44,115 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:44,116 INFO L225 Difference]: With dead ends: 42 [2020-10-21 22:07:44,116 INFO L226 Difference]: Without dead ends: 29 [2020-10-21 22:07:44,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:44,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-21 22:07:44,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-21 22:07:44,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-21 22:07:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2020-10-21 22:07:44,117 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 16 [2020-10-21 22:07:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:44,118 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-10-21 22:07:44,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2020-10-21 22:07:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:44,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:44,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:44,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-21 22:07:44,118 INFO L429 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:44,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:44,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1342163074, now seen corresponding path program 41 times [2020-10-21 22:07:44,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:44,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571431614] [2020-10-21 22:07:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:44,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571431614] [2020-10-21 22:07:44,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:44,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:44,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815126119] [2020-10-21 22:07:44,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:44,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:44,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:44,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:44,649 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand 12 states. [2020-10-21 22:07:45,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:45,128 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-10-21 22:07:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:45,128 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:45,129 INFO L225 Difference]: With dead ends: 43 [2020-10-21 22:07:45,129 INFO L226 Difference]: Without dead ends: 36 [2020-10-21 22:07:45,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:45,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-21 22:07:45,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-10-21 22:07:45,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-21 22:07:45,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2020-10-21 22:07:45,130 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 16 [2020-10-21 22:07:45,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:45,131 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2020-10-21 22:07:45,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:45,131 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2020-10-21 22:07:45,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:45,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:45,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:45,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-21 22:07:45,131 INFO L429 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:45,132 INFO L82 PathProgramCache]: Analyzing trace with hash 689630706, now seen corresponding path program 42 times [2020-10-21 22:07:45,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:45,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003882279] [2020-10-21 22:07:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:45,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:45,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003882279] [2020-10-21 22:07:45,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:45,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:45,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790656392] [2020-10-21 22:07:45,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:45,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:45,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:45,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:45,629 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand 12 states. [2020-10-21 22:07:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:46,093 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-10-21 22:07:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:46,093 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:46,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:46,094 INFO L225 Difference]: With dead ends: 42 [2020-10-21 22:07:46,094 INFO L226 Difference]: Without dead ends: 27 [2020-10-21 22:07:46,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:46,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-21 22:07:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-21 22:07:46,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-21 22:07:46,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2020-10-21 22:07:46,097 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 16 [2020-10-21 22:07:46,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:46,097 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-10-21 22:07:46,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:46,097 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-10-21 22:07:46,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:46,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:46,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:46,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-21 22:07:46,098 INFO L429 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:46,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:46,099 INFO L82 PathProgramCache]: Analyzing trace with hash -44086392, now seen corresponding path program 43 times [2020-10-21 22:07:46,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:46,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281118406] [2020-10-21 22:07:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:46,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281118406] [2020-10-21 22:07:46,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:46,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:46,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269644330] [2020-10-21 22:07:46,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:46,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:46,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:46,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:46,807 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 12 states. [2020-10-21 22:07:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:47,449 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-10-21 22:07:47,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:47,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:47,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:47,450 INFO L225 Difference]: With dead ends: 34 [2020-10-21 22:07:47,450 INFO L226 Difference]: Without dead ends: 26 [2020-10-21 22:07:47,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:47,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-21 22:07:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-21 22:07:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-21 22:07:47,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-10-21 22:07:47,454 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 16 [2020-10-21 22:07:47,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:47,454 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-10-21 22:07:47,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-10-21 22:07:47,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:47,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:47,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:47,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-21 22:07:47,456 INFO L429 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:47,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:47,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1360243696, now seen corresponding path program 44 times [2020-10-21 22:07:47,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:47,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340715437] [2020-10-21 22:07:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:48,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:48,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340715437] [2020-10-21 22:07:48,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:48,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:48,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199548289] [2020-10-21 22:07:48,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:48,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:48,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:48,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:48,139 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 12 states. [2020-10-21 22:07:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:48,612 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2020-10-21 22:07:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:07:48,613 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:48,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:48,614 INFO L225 Difference]: With dead ends: 31 [2020-10-21 22:07:48,614 INFO L226 Difference]: Without dead ends: 24 [2020-10-21 22:07:48,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-21 22:07:48,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-21 22:07:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-21 22:07:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-10-21 22:07:48,616 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 16 [2020-10-21 22:07:48,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:48,617 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-10-21 22:07:48,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-10-21 22:07:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:07:48,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:48,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:48,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-21 22:07:48,618 INFO L429 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:48,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:48,618 INFO L82 PathProgramCache]: Analyzing trace with hash -2012776064, now seen corresponding path program 45 times [2020-10-21 22:07:48,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:48,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063210225] [2020-10-21 22:07:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:49,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063210225] [2020-10-21 22:07:49,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:49,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-21 22:07:49,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338727084] [2020-10-21 22:07:49,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 22:07:49,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:49,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 22:07:49,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:07:49,156 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 12 states. [2020-10-21 22:07:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:49,499 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2020-10-21 22:07:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:49,499 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-10-21 22:07:49,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:49,500 INFO L225 Difference]: With dead ends: 23 [2020-10-21 22:07:49,500 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:07:49,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:07:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:07:49,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:07:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:07:49,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:07:49,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-21 22:07:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:49,502 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:07:49,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 22:07:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:07:49,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:07:49,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-10-21 22:07:49,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:07:49 BasicIcfg [2020-10-21 22:07:49,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:07:49,508 INFO L168 Benchmark]: Toolchain (without parser) took 105460.13 ms. Allocated memory was 143.7 MB in the beginning and 507.5 MB in the end (delta: 363.9 MB). Free memory was 101.2 MB in the beginning and 407.8 MB in the end (delta: -306.6 MB). Peak memory consumption was 57.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:49,509 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 143.7 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:07:49,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1313.00 ms. Allocated memory was 143.7 MB in the beginning and 235.9 MB in the end (delta: 92.3 MB). Free memory was 100.4 MB in the beginning and 171.0 MB in the end (delta: -70.7 MB). Peak memory consumption was 71.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:49,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 150.56 ms. Allocated memory is still 235.9 MB. Free memory was 171.0 MB in the beginning and 167.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:49,510 INFO L168 Benchmark]: Boogie Preprocessor took 71.67 ms. Allocated memory is still 235.9 MB. Free memory was 167.7 MB in the beginning and 164.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:49,510 INFO L168 Benchmark]: RCFGBuilder took 773.40 ms. Allocated memory is still 235.9 MB. Free memory was 164.3 MB in the beginning and 114.7 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:49,511 INFO L168 Benchmark]: TraceAbstraction took 103141.20 ms. Allocated memory was 235.9 MB in the beginning and 507.5 MB in the end (delta: 271.6 MB). Free memory was 113.0 MB in the beginning and 407.8 MB in the end (delta: -294.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 22:07:49,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 143.7 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1313.00 ms. Allocated memory was 143.7 MB in the beginning and 235.9 MB in the end (delta: 92.3 MB). Free memory was 100.4 MB in the beginning and 171.0 MB in the end (delta: -70.7 MB). Peak memory consumption was 71.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 150.56 ms. Allocated memory is still 235.9 MB. Free memory was 171.0 MB in the beginning and 167.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.67 ms. Allocated memory is still 235.9 MB. Free memory was 167.7 MB in the beginning and 164.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 773.40 ms. Allocated memory is still 235.9 MB. Free memory was 164.3 MB in the beginning and 114.7 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 103141.20 ms. Allocated memory was 235.9 MB in the beginning and 507.5 MB in the end (delta: 271.6 MB). Free memory was 113.0 MB in the beginning and 407.8 MB in the end (delta: -294.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1409 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 13 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 29.5s, 34 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 38.3s, 145 PlacesBefore, 32 PlacesAfterwards, 151 TransitionsBefore, 30 TransitionsAfterwards, 2124 CoEnabledTransitionPairs, 7 FixpointIterations, 77 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 22 ConcurrentYvCompositions, 8 ChoiceCompositions, 178 TotalNumberOfCompositions, 3461 MoverChecksTotal - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 129 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 103.0s, OverallIterations: 60, TraceHistogramMax: 1, AutomataDifference: 32.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 38.4s, HoareTripleCheckerStatistics: 819 SDtfs, 1455 SDslu, 3629 SDs, 0 SdLazy, 10977 SolverSat, 1301 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 853 GetRequests, 32 SyntacticMatches, 27 SemanticMatches, 794 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 975 ImplicationChecksByTransitivity, 40.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 60 MinimizatonAttempts, 432 StatesRemovedByMinimization, 42 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 29.5s InterpolantComputationTime, 930 NumberOfCodeBlocks, 930 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 870 ConstructedInterpolants, 0 QuantifiedInterpolants, 315200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 60 InterpolantComputations, 60 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...