/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:21:46,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:21:46,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:21:46,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:21:46,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:21:46,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:21:46,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:21:46,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:21:46,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:21:46,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:21:46,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:21:46,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:21:46,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:21:46,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:21:46,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:21:46,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:21:46,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:21:46,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:21:46,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:21:46,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:21:46,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:21:46,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:21:46,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:21:46,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:21:46,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:21:46,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:21:46,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:21:46,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:21:46,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:21:46,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:21:46,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:21:46,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:21:46,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:21:46,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:21:46,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:21:46,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:21:46,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:21:46,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:21:46,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:21:46,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:21:46,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:21:46,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:21:46,730 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:21:46,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:21:46,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:21:46,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:21:46,736 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:21:46,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:21:46,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:21:46,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:21:46,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:21:46,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:21:46,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:21:46,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:21:46,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:21:46,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:21:46,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:21:46,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:21:46,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:21:46,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:21:46,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:21:46,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:21:46,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:21:46,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:21:46,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:21:46,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:21:46,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:21:46,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:21:47,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:21:47,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:21:47,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:21:47,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:21:47,156 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:21:47,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2020-12-22 11:21:47,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bc16699d/7aed5d8b596b4d8fb5f026823c94d84c/FLAG81616e6fd [2020-12-22 11:21:48,016 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:21:48,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2020-12-22 11:21:48,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bc16699d/7aed5d8b596b4d8fb5f026823c94d84c/FLAG81616e6fd [2020-12-22 11:21:48,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bc16699d/7aed5d8b596b4d8fb5f026823c94d84c [2020-12-22 11:21:48,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:21:48,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:21:48,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:21:48,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:21:48,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:21:48,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:21:48" (1/1) ... [2020-12-22 11:21:48,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34bb4649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:48, skipping insertion in model container [2020-12-22 11:21:48,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:21:48" (1/1) ... [2020-12-22 11:21:48,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:21:48,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:21:48,590 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 11:21:48,961 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2020-12-22 11:21:48,969 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2020-12-22 11:21:48,972 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2020-12-22 11:21:48,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:21:48,995 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:21:49,015 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 11:21:49,082 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2020-12-22 11:21:49,083 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2020-12-22 11:21:49,084 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2020-12-22 11:21:49,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:21:49,275 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:21:49,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49 WrapperNode [2020-12-22 11:21:49,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:21:49,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:21:49,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:21:49,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:21:49,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:21:49,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:21:49,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:21:49,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:21:49,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (1/1) ... [2020-12-22 11:21:49,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:21:49,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:21:49,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:21:49,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:21:49,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (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 [2020-12-22 11:21:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2020-12-22 11:21:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2020-12-22 11:21:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:21:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:21:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:21:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:21:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:21:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:21:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:21:49,518 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:21:50,075 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:21:50,076 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-22 11:21:50,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:21:50 BoogieIcfgContainer [2020-12-22 11:21:50,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:21:50,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:21:50,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:21:50,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:21:50,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:21:48" (1/3) ... [2020-12-22 11:21:50,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563c07b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:21:50, skipping insertion in model container [2020-12-22 11:21:50,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:21:49" (2/3) ... [2020-12-22 11:21:50,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563c07b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:21:50, skipping insertion in model container [2020-12-22 11:21:50,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:21:50" (3/3) ... [2020-12-22 11:21:50,096 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2020-12-22 11:21:50,103 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:21:50,104 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:21:50,109 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 11:21:50,110 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:21:50,175 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,176 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,176 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,176 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,176 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,177 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,177 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,177 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,177 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,177 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,178 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,178 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,178 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,178 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,178 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,179 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,179 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,179 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,179 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,180 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,180 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,180 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,180 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,180 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,181 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,181 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,181 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,181 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,182 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,182 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,182 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,182 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,182 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,183 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,183 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,183 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,183 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,183 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,184 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,184 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,184 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,184 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,185 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,185 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,185 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,185 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,186 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,186 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,186 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,186 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,187 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,187 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,187 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,187 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,188 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,188 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,188 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,188 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,188 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,189 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,189 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,189 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,189 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,190 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,190 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,190 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,190 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,190 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,191 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,191 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,191 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,192 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,192 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,192 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,192 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,193 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,193 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,193 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,193 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,193 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,194 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,194 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,194 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,194 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,195 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,195 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,195 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,195 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,196 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,196 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,196 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,196 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,197 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,197 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,197 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,197 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,197 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,198 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,198 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,198 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,199 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,199 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,199 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,199 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,200 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,200 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,200 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,200 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,200 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,201 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,201 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,201 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,202 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,202 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,202 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,202 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,203 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,203 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,203 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,203 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,204 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,204 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,204 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,204 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,205 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,205 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,205 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,205 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,205 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,206 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,206 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,206 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,206 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,207 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,207 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,207 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,207 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,207 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,208 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,208 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,208 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,208 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,209 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,209 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,209 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,209 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,210 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,210 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,210 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,210 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,211 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,211 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,211 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,211 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,212 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,212 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,212 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,212 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,213 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,213 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,213 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,213 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,214 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,214 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,214 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,214 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,214 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,215 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,215 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,215 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,215 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,215 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,216 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,216 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,216 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,216 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,217 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,217 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,217 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,217 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,217 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,218 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,218 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,218 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,218 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,218 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,219 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,219 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,219 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,219 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,219 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,220 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,220 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,220 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,220 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,221 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,221 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,221 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,221 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,221 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,222 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,222 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,222 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,222 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,223 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,223 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,223 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,223 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,223 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,224 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,224 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,224 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,224 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,225 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,225 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,225 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,225 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,226 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,226 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,226 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,226 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,226 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,227 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,227 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,227 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,227 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,228 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,228 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,228 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,229 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,229 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,229 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,229 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,230 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,230 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,230 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,230 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,230 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,231 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,231 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,231 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,231 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,232 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,232 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,232 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,232 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,233 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,233 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,233 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,233 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,234 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,234 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,234 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,234 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,234 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,235 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,237 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,237 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,238 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,238 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,238 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,239 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,239 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,239 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,239 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,239 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,240 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,240 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,240 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,240 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,240 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,241 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,241 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,241 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,241 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,242 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,242 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,242 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,242 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,242 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,243 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,243 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,243 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,243 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,243 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:21:50,251 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-22 11:21:50,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 11:21:50,295 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:21:50,295 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:21:50,296 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:21:50,296 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:21:50,296 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:21:50,296 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:21:50,296 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:21:50,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:21:50,312 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:21:50,314 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 139 transitions, 286 flow [2020-12-22 11:21:50,318 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 139 transitions, 286 flow [2020-12-22 11:21:50,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 139 transitions, 286 flow [2020-12-22 11:21:50,421 INFO L129 PetriNetUnfolder]: 10/138 cut-off events. [2020-12-22 11:21:50,421 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-12-22 11:21:50,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 138 events. 10/138 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2020-12-22 11:21:50,434 INFO L116 LiptonReduction]: Number of co-enabled transitions 4968 [2020-12-22 11:21:51,266 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:21:54,383 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 11:21:54,535 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 11:21:55,993 WARN L197 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-12-22 11:21:56,184 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 11:21:56,595 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-12-22 11:21:56,755 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 11:21:57,055 INFO L131 LiptonReduction]: Checked pairs total: 6813 [2020-12-22 11:21:57,056 INFO L133 LiptonReduction]: Total number of compositions: 136 [2020-12-22 11:21:57,063 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 33 transitions, 74 flow [2020-12-22 11:21:57,078 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 130 states. [2020-12-22 11:21:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2020-12-22 11:21:57,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 11:21:57,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:21:57,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 11:21:57,088 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:21:57,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:21:57,094 INFO L82 PathProgramCache]: Analyzing trace with hash 530358716, now seen corresponding path program 1 times [2020-12-22 11:21:57,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:21:57,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658320633] [2020-12-22 11:21:57,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:21:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:21:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:21:57,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658320633] [2020-12-22 11:21:57,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:21:57,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:21:57,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834550592] [2020-12-22 11:21:57,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:21:57,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:21:57,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:21:57,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:21:57,329 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 2 states. [2020-12-22 11:21:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:21:57,367 INFO L93 Difference]: Finished difference Result 130 states and 279 transitions. [2020-12-22 11:21:57,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:21:57,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-12-22 11:21:57,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:21:57,389 INFO L225 Difference]: With dead ends: 130 [2020-12-22 11:21:57,389 INFO L226 Difference]: Without dead ends: 119 [2020-12-22 11:21:57,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:21:57,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-22 11:21:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-12-22 11:21:57,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-22 11:21:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 258 transitions. [2020-12-22 11:21:57,440 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 258 transitions. Word has length 5 [2020-12-22 11:21:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:21:57,440 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 258 transitions. [2020-12-22 11:21:57,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:21:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 258 transitions. [2020-12-22 11:21:57,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 11:21:57,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:21:57,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 11:21:57,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:21:57,442 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:21:57,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:21:57,443 INFO L82 PathProgramCache]: Analyzing trace with hash -738752377, now seen corresponding path program 1 times [2020-12-22 11:21:57,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:21:57,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128389480] [2020-12-22 11:21:57,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:21:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:21:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:21:57,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128389480] [2020-12-22 11:21:57,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:21:57,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:21:57,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113345846] [2020-12-22 11:21:57,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:21:57,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:21:57,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:21:57,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:21:57,534 INFO L87 Difference]: Start difference. First operand 119 states and 258 transitions. Second operand 3 states. [2020-12-22 11:21:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:21:57,568 INFO L93 Difference]: Finished difference Result 191 states and 419 transitions. [2020-12-22 11:21:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:21:57,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 11:21:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:21:57,576 INFO L225 Difference]: With dead ends: 191 [2020-12-22 11:21:57,576 INFO L226 Difference]: Without dead ends: 191 [2020-12-22 11:21:57,578 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 [2020-12-22 11:21:57,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-12-22 11:21:57,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 146. [2020-12-22 11:21:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-12-22 11:21:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 324 transitions. [2020-12-22 11:21:57,613 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 324 transitions. Word has length 6 [2020-12-22 11:21:57,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:21:57,614 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 324 transitions. [2020-12-22 11:21:57,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:21:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 324 transitions. [2020-12-22 11:21:57,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:21:57,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:21:57,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:21:57,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:21:57,620 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:21:57,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:21:57,624 INFO L82 PathProgramCache]: Analyzing trace with hash -869667689, now seen corresponding path program 1 times [2020-12-22 11:21:57,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:21:57,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344008681] [2020-12-22 11:21:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:21:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:21:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:21:57,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344008681] [2020-12-22 11:21:57,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:21:57,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:21:57,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016804434] [2020-12-22 11:21:57,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:21:57,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:21:57,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:21:57,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:21:57,841 INFO L87 Difference]: Start difference. First operand 146 states and 324 transitions. Second operand 7 states. [2020-12-22 11:21:58,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:21:58,155 INFO L93 Difference]: Finished difference Result 173 states and 374 transitions. [2020-12-22 11:21:58,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:21:58,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-22 11:21:58,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:21:58,158 INFO L225 Difference]: With dead ends: 173 [2020-12-22 11:21:58,158 INFO L226 Difference]: Without dead ends: 154 [2020-12-22 11:21:58,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:21:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-22 11:21:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-12-22 11:21:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-22 11:21:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 342 transitions. [2020-12-22 11:21:58,176 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 342 transitions. Word has length 10 [2020-12-22 11:21:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:21:58,176 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 342 transitions. [2020-12-22 11:21:58,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:21:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 342 transitions. [2020-12-22 11:21:58,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:21:58,181 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:21:58,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:21:58,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:21:58,181 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:21:58,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:21:58,182 INFO L82 PathProgramCache]: Analyzing trace with hash 348150037, now seen corresponding path program 1 times [2020-12-22 11:21:58,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:21:58,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367709534] [2020-12-22 11:21:58,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:21:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:21:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:21:58,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367709534] [2020-12-22 11:21:58,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:21:58,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 11:21:58,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783527920] [2020-12-22 11:21:58,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 11:21:58,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:21:58,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 11:21:58,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:21:58,577 INFO L87 Difference]: Start difference. First operand 154 states and 342 transitions. Second operand 12 states. [2020-12-22 11:21:59,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:21:59,414 INFO L93 Difference]: Finished difference Result 183 states and 398 transitions. [2020-12-22 11:21:59,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 11:21:59,414 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-12-22 11:21:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:21:59,416 INFO L225 Difference]: With dead ends: 183 [2020-12-22 11:21:59,416 INFO L226 Difference]: Without dead ends: 175 [2020-12-22 11:21:59,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-12-22 11:21:59,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-12-22 11:21:59,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 163. [2020-12-22 11:21:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-22 11:21:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 360 transitions. [2020-12-22 11:21:59,429 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 360 transitions. Word has length 16 [2020-12-22 11:21:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:21:59,430 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 360 transitions. [2020-12-22 11:21:59,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 11:21:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 360 transitions. [2020-12-22 11:21:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:21:59,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:21:59,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:21:59,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:21:59,433 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:21:59,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:21:59,434 INFO L82 PathProgramCache]: Analyzing trace with hash -483792453, now seen corresponding path program 2 times [2020-12-22 11:21:59,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:21:59,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211807764] [2020-12-22 11:21:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:21:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:21:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:21:59,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211807764] [2020-12-22 11:21:59,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:21:59,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 11:21:59,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945899771] [2020-12-22 11:21:59,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 11:21:59,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:21:59,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 11:21:59,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:21:59,977 INFO L87 Difference]: Start difference. First operand 163 states and 360 transitions. Second operand 12 states. [2020-12-22 11:22:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:01,001 INFO L93 Difference]: Finished difference Result 200 states and 435 transitions. [2020-12-22 11:22:01,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 11:22:01,002 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-12-22 11:22:01,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:01,004 INFO L225 Difference]: With dead ends: 200 [2020-12-22 11:22:01,004 INFO L226 Difference]: Without dead ends: 192 [2020-12-22 11:22:01,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:22:01,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-12-22 11:22:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 170. [2020-12-22 11:22:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-22 11:22:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 377 transitions. [2020-12-22 11:22:01,015 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 377 transitions. Word has length 16 [2020-12-22 11:22:01,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:01,016 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 377 transitions. [2020-12-22 11:22:01,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 11:22:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 377 transitions. [2020-12-22 11:22:01,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:22:01,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:01,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:01,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:22:01,018 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:01,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1411218197, now seen corresponding path program 3 times [2020-12-22 11:22:01,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:01,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174856574] [2020-12-22 11:22:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:01,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:01,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174856574] [2020-12-22 11:22:01,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:01,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 11:22:01,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242139660] [2020-12-22 11:22:01,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 11:22:01,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:01,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 11:22:01,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:22:01,506 INFO L87 Difference]: Start difference. First operand 170 states and 377 transitions. Second operand 12 states. [2020-12-22 11:22:02,741 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-22 11:22:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:03,081 INFO L93 Difference]: Finished difference Result 201 states and 432 transitions. [2020-12-22 11:22:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 11:22:03,083 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-12-22 11:22:03,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:03,088 INFO L225 Difference]: With dead ends: 201 [2020-12-22 11:22:03,088 INFO L226 Difference]: Without dead ends: 191 [2020-12-22 11:22:03,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=197, Invalid=453, Unknown=0, NotChecked=0, Total=650 [2020-12-22 11:22:03,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-12-22 11:22:03,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2020-12-22 11:22:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-22 11:22:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 384 transitions. [2020-12-22 11:22:03,099 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 384 transitions. Word has length 16 [2020-12-22 11:22:03,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:03,099 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 384 transitions. [2020-12-22 11:22:03,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 11:22:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 384 transitions. [2020-12-22 11:22:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:22:03,101 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:03,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:03,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:22:03,101 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:03,102 INFO L82 PathProgramCache]: Analyzing trace with hash -801537283, now seen corresponding path program 4 times [2020-12-22 11:22:03,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:03,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754336862] [2020-12-22 11:22:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:03,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:03,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754336862] [2020-12-22 11:22:03,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:03,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 11:22:03,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119370320] [2020-12-22 11:22:03,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 11:22:03,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:03,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 11:22:03,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:22:03,513 INFO L87 Difference]: Start difference. First operand 175 states and 384 transitions. Second operand 12 states. [2020-12-22 11:22:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:04,424 INFO L93 Difference]: Finished difference Result 200 states and 432 transitions. [2020-12-22 11:22:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 11:22:04,427 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-12-22 11:22:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:04,429 INFO L225 Difference]: With dead ends: 200 [2020-12-22 11:22:04,429 INFO L226 Difference]: Without dead ends: 192 [2020-12-22 11:22:04,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-12-22 11:22:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-12-22 11:22:04,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 188. [2020-12-22 11:22:04,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-12-22 11:22:04,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 413 transitions. [2020-12-22 11:22:04,443 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 413 transitions. Word has length 16 [2020-12-22 11:22:04,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:04,443 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 413 transitions. [2020-12-22 11:22:04,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 11:22:04,444 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 413 transitions. [2020-12-22 11:22:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:22:04,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:04,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:04,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:22:04,446 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:04,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:04,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1093473367, now seen corresponding path program 5 times [2020-12-22 11:22:04,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:04,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457340390] [2020-12-22 11:22:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:04,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457340390] [2020-12-22 11:22:04,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:04,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 11:22:04,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664307559] [2020-12-22 11:22:04,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 11:22:04,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:04,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 11:22:04,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:22:04,901 INFO L87 Difference]: Start difference. First operand 188 states and 413 transitions. Second operand 12 states. [2020-12-22 11:22:06,347 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-22 11:22:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:06,703 INFO L93 Difference]: Finished difference Result 216 states and 462 transitions. [2020-12-22 11:22:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 11:22:06,704 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-12-22 11:22:06,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:06,706 INFO L225 Difference]: With dead ends: 216 [2020-12-22 11:22:06,706 INFO L226 Difference]: Without dead ends: 206 [2020-12-22 11:22:06,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2020-12-22 11:22:06,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-12-22 11:22:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 178. [2020-12-22 11:22:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-22 11:22:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 393 transitions. [2020-12-22 11:22:06,715 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 393 transitions. Word has length 16 [2020-12-22 11:22:06,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:06,715 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 393 transitions. [2020-12-22 11:22:06,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 11:22:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 393 transitions. [2020-12-22 11:22:06,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:22:06,717 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:06,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:06,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:22:06,717 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:06,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:06,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1931279977, now seen corresponding path program 6 times [2020-12-22 11:22:06,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:06,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592783425] [2020-12-22 11:22:06,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:07,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592783425] [2020-12-22 11:22:07,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:07,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 11:22:07,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13155981] [2020-12-22 11:22:07,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 11:22:07,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:07,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 11:22:07,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:22:07,013 INFO L87 Difference]: Start difference. First operand 178 states and 393 transitions. Second operand 11 states. [2020-12-22 11:22:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:08,227 INFO L93 Difference]: Finished difference Result 196 states and 422 transitions. [2020-12-22 11:22:08,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:22:08,228 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-12-22 11:22:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:08,231 INFO L225 Difference]: With dead ends: 196 [2020-12-22 11:22:08,231 INFO L226 Difference]: Without dead ends: 186 [2020-12-22 11:22:08,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2020-12-22 11:22:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-12-22 11:22:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 174. [2020-12-22 11:22:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-22 11:22:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 385 transitions. [2020-12-22 11:22:08,239 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 385 transitions. Word has length 16 [2020-12-22 11:22:08,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:08,239 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 385 transitions. [2020-12-22 11:22:08,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 11:22:08,239 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 385 transitions. [2020-12-22 11:22:08,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:08,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:08,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:08,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:22:08,241 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:08,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:08,241 INFO L82 PathProgramCache]: Analyzing trace with hash -400480434, now seen corresponding path program 1 times [2020-12-22 11:22:08,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:08,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974307448] [2020-12-22 11:22:08,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:08,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974307448] [2020-12-22 11:22:08,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:08,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 11:22:08,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000789516] [2020-12-22 11:22:08,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 11:22:08,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:08,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 11:22:08,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:22:08,917 INFO L87 Difference]: Start difference. First operand 174 states and 385 transitions. Second operand 15 states. [2020-12-22 11:22:09,691 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-12-22 11:22:10,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:10,463 INFO L93 Difference]: Finished difference Result 250 states and 552 transitions. [2020-12-22 11:22:10,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:22:10,464 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2020-12-22 11:22:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:10,468 INFO L225 Difference]: With dead ends: 250 [2020-12-22 11:22:10,468 INFO L226 Difference]: Without dead ends: 250 [2020-12-22 11:22:10,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:22:10,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-12-22 11:22:10,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 227. [2020-12-22 11:22:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-12-22 11:22:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 503 transitions. [2020-12-22 11:22:10,477 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 503 transitions. Word has length 18 [2020-12-22 11:22:10,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:10,478 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 503 transitions. [2020-12-22 11:22:10,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 11:22:10,478 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 503 transitions. [2020-12-22 11:22:10,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:10,479 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:10,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:10,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:22:10,480 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:10,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:10,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1033296268, now seen corresponding path program 2 times [2020-12-22 11:22:10,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:10,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117666565] [2020-12-22 11:22:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:11,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117666565] [2020-12-22 11:22:11,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:11,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 11:22:11,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130518642] [2020-12-22 11:22:11,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 11:22:11,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:11,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 11:22:11,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:22:11,173 INFO L87 Difference]: Start difference. First operand 227 states and 503 transitions. Second operand 15 states. [2020-12-22 11:22:12,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:12,737 INFO L93 Difference]: Finished difference Result 381 states and 839 transitions. [2020-12-22 11:22:12,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:22:12,738 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2020-12-22 11:22:12,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:12,742 INFO L225 Difference]: With dead ends: 381 [2020-12-22 11:22:12,742 INFO L226 Difference]: Without dead ends: 381 [2020-12-22 11:22:12,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:22:12,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-12-22 11:22:12,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 233. [2020-12-22 11:22:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-22 11:22:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 515 transitions. [2020-12-22 11:22:12,753 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 515 transitions. Word has length 18 [2020-12-22 11:22:12,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:12,754 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 515 transitions. [2020-12-22 11:22:12,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 11:22:12,754 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 515 transitions. [2020-12-22 11:22:12,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:12,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:12,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:12,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:22:12,755 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:12,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:12,756 INFO L82 PathProgramCache]: Analyzing trace with hash -994195122, now seen corresponding path program 3 times [2020-12-22 11:22:12,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:12,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448672788] [2020-12-22 11:22:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:13,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448672788] [2020-12-22 11:22:13,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:13,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 11:22:13,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897319440] [2020-12-22 11:22:13,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 11:22:13,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:13,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 11:22:13,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:22:13,351 INFO L87 Difference]: Start difference. First operand 233 states and 515 transitions. Second operand 16 states. [2020-12-22 11:22:14,385 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-22 11:22:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:15,545 INFO L93 Difference]: Finished difference Result 398 states and 886 transitions. [2020-12-22 11:22:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 11:22:15,546 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-12-22 11:22:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:15,550 INFO L225 Difference]: With dead ends: 398 [2020-12-22 11:22:15,550 INFO L226 Difference]: Without dead ends: 398 [2020-12-22 11:22:15,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-12-22 11:22:15,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-12-22 11:22:15,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 238. [2020-12-22 11:22:15,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-12-22 11:22:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 526 transitions. [2020-12-22 11:22:15,561 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 526 transitions. Word has length 18 [2020-12-22 11:22:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:15,561 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 526 transitions. [2020-12-22 11:22:15,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 11:22:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 526 transitions. [2020-12-22 11:22:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:15,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:15,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:15,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 11:22:15,562 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:15,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:15,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1443399882, now seen corresponding path program 4 times [2020-12-22 11:22:15,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:15,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556359566] [2020-12-22 11:22:15,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:16,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556359566] [2020-12-22 11:22:16,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:16,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 11:22:16,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610524329] [2020-12-22 11:22:16,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 11:22:16,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:16,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 11:22:16,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:22:16,302 INFO L87 Difference]: Start difference. First operand 238 states and 526 transitions. Second operand 15 states. [2020-12-22 11:22:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:17,849 INFO L93 Difference]: Finished difference Result 311 states and 687 transitions. [2020-12-22 11:22:17,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:22:17,849 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2020-12-22 11:22:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:17,852 INFO L225 Difference]: With dead ends: 311 [2020-12-22 11:22:17,852 INFO L226 Difference]: Without dead ends: 311 [2020-12-22 11:22:17,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:22:17,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-12-22 11:22:17,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 239. [2020-12-22 11:22:17,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-22 11:22:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 529 transitions. [2020-12-22 11:22:17,861 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 529 transitions. Word has length 18 [2020-12-22 11:22:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:17,861 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 529 transitions. [2020-12-22 11:22:17,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 11:22:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 529 transitions. [2020-12-22 11:22:17,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:17,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:17,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:17,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 11:22:17,863 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:17,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:17,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1404298736, now seen corresponding path program 5 times [2020-12-22 11:22:17,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:17,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653082954] [2020-12-22 11:22:17,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:18,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653082954] [2020-12-22 11:22:18,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:18,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 11:22:18,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067916395] [2020-12-22 11:22:18,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 11:22:18,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:18,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 11:22:18,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:22:18,459 INFO L87 Difference]: Start difference. First operand 239 states and 529 transitions. Second operand 16 states. [2020-12-22 11:22:19,473 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-22 11:22:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:20,618 INFO L93 Difference]: Finished difference Result 457 states and 1018 transitions. [2020-12-22 11:22:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 11:22:20,619 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-12-22 11:22:20,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:20,622 INFO L225 Difference]: With dead ends: 457 [2020-12-22 11:22:20,623 INFO L226 Difference]: Without dead ends: 457 [2020-12-22 11:22:20,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2020-12-22 11:22:20,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-12-22 11:22:20,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 232. [2020-12-22 11:22:20,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-12-22 11:22:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 514 transitions. [2020-12-22 11:22:20,633 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 514 transitions. Word has length 18 [2020-12-22 11:22:20,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:20,633 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 514 transitions. [2020-12-22 11:22:20,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 11:22:20,634 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 514 transitions. [2020-12-22 11:22:20,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:20,635 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:20,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:20,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 11:22:20,635 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:20,636 INFO L82 PathProgramCache]: Analyzing trace with hash -499402928, now seen corresponding path program 6 times [2020-12-22 11:22:20,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:20,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691484735] [2020-12-22 11:22:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:21,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691484735] [2020-12-22 11:22:21,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:21,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 11:22:21,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653234328] [2020-12-22 11:22:21,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 11:22:21,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:21,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 11:22:21,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:22:21,368 INFO L87 Difference]: Start difference. First operand 232 states and 514 transitions. Second operand 16 states. [2020-12-22 11:22:22,358 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2020-12-22 11:22:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:23,212 INFO L93 Difference]: Finished difference Result 304 states and 667 transitions. [2020-12-22 11:22:23,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-22 11:22:23,213 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-12-22 11:22:23,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:23,216 INFO L225 Difference]: With dead ends: 304 [2020-12-22 11:22:23,216 INFO L226 Difference]: Without dead ends: 304 [2020-12-22 11:22:23,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2020-12-22 11:22:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-12-22 11:22:23,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 229. [2020-12-22 11:22:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-12-22 11:22:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 501 transitions. [2020-12-22 11:22:23,225 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 501 transitions. Word has length 18 [2020-12-22 11:22:23,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:23,225 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 501 transitions. [2020-12-22 11:22:23,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 11:22:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 501 transitions. [2020-12-22 11:22:23,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:23,226 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:23,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:23,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 11:22:23,227 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:23,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:23,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1858065982, now seen corresponding path program 7 times [2020-12-22 11:22:23,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:23,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596943853] [2020-12-22 11:22:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:23,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596943853] [2020-12-22 11:22:23,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:23,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 11:22:23,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632108140] [2020-12-22 11:22:23,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-22 11:22:23,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:23,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-22 11:22:23,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-12-22 11:22:23,807 INFO L87 Difference]: Start difference. First operand 229 states and 501 transitions. Second operand 14 states. [2020-12-22 11:22:24,541 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-12-22 11:22:25,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:25,481 INFO L93 Difference]: Finished difference Result 411 states and 917 transitions. [2020-12-22 11:22:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:22:25,482 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-12-22 11:22:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:25,486 INFO L225 Difference]: With dead ends: 411 [2020-12-22 11:22:25,486 INFO L226 Difference]: Without dead ends: 411 [2020-12-22 11:22:25,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:22:25,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-12-22 11:22:25,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 235. [2020-12-22 11:22:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-12-22 11:22:25,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 514 transitions. [2020-12-22 11:22:25,496 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 514 transitions. Word has length 18 [2020-12-22 11:22:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:25,496 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 514 transitions. [2020-12-22 11:22:25,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-22 11:22:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 514 transitions. [2020-12-22 11:22:25,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:25,497 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:25,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:25,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 11:22:25,498 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:25,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:25,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1065131066, now seen corresponding path program 8 times [2020-12-22 11:22:25,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:25,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458144604] [2020-12-22 11:22:25,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:26,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458144604] [2020-12-22 11:22:26,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:26,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 11:22:26,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691205561] [2020-12-22 11:22:26,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 11:22:26,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:26,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 11:22:26,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:22:26,224 INFO L87 Difference]: Start difference. First operand 235 states and 514 transitions. Second operand 16 states. [2020-12-22 11:22:26,870 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-12-22 11:22:27,029 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-12-22 11:22:27,241 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-12-22 11:22:28,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:28,290 INFO L93 Difference]: Finished difference Result 342 states and 755 transitions. [2020-12-22 11:22:28,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 11:22:28,291 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-12-22 11:22:28,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:28,294 INFO L225 Difference]: With dead ends: 342 [2020-12-22 11:22:28,294 INFO L226 Difference]: Without dead ends: 342 [2020-12-22 11:22:28,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2020-12-22 11:22:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-12-22 11:22:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 235. [2020-12-22 11:22:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-12-22 11:22:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 514 transitions. [2020-12-22 11:22:28,304 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 514 transitions. Word has length 18 [2020-12-22 11:22:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:28,304 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 514 transitions. [2020-12-22 11:22:28,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 11:22:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 514 transitions. [2020-12-22 11:22:28,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:28,305 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:28,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:28,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 11:22:28,306 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:28,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:28,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1669882158, now seen corresponding path program 9 times [2020-12-22 11:22:28,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:28,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29948396] [2020-12-22 11:22:28,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:28,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:28,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29948396] [2020-12-22 11:22:28,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:28,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 11:22:28,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010383385] [2020-12-22 11:22:28,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 11:22:28,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:28,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 11:22:28,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:22:28,916 INFO L87 Difference]: Start difference. First operand 235 states and 514 transitions. Second operand 15 states. [2020-12-22 11:22:29,575 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-12-22 11:22:29,807 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2020-12-22 11:22:29,969 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-12-22 11:22:30,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:30,566 INFO L93 Difference]: Finished difference Result 309 states and 676 transitions. [2020-12-22 11:22:30,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:22:30,567 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2020-12-22 11:22:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:30,570 INFO L225 Difference]: With dead ends: 309 [2020-12-22 11:22:30,570 INFO L226 Difference]: Without dead ends: 309 [2020-12-22 11:22:30,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:22:30,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-12-22 11:22:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 235. [2020-12-22 11:22:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-12-22 11:22:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 514 transitions. [2020-12-22 11:22:30,579 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 514 transitions. Word has length 18 [2020-12-22 11:22:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:30,579 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 514 transitions. [2020-12-22 11:22:30,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 11:22:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 514 transitions. [2020-12-22 11:22:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:30,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:30,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:30,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 11:22:30,581 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:30,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:30,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1037066324, now seen corresponding path program 10 times [2020-12-22 11:22:30,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:30,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606140104] [2020-12-22 11:22:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:31,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606140104] [2020-12-22 11:22:31,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:31,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 11:22:31,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045190696] [2020-12-22 11:22:31,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 11:22:31,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:31,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 11:22:31,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:22:31,239 INFO L87 Difference]: Start difference. First operand 235 states and 514 transitions. Second operand 15 states. [2020-12-22 11:22:32,100 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-12-22 11:22:32,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:32,826 INFO L93 Difference]: Finished difference Result 385 states and 842 transitions. [2020-12-22 11:22:32,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:22:32,827 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2020-12-22 11:22:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:32,830 INFO L225 Difference]: With dead ends: 385 [2020-12-22 11:22:32,830 INFO L226 Difference]: Without dead ends: 385 [2020-12-22 11:22:32,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:22:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-12-22 11:22:32,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 235. [2020-12-22 11:22:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-12-22 11:22:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 514 transitions. [2020-12-22 11:22:32,840 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 514 transitions. Word has length 18 [2020-12-22 11:22:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:32,840 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 514 transitions. [2020-12-22 11:22:32,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 11:22:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 514 transitions. [2020-12-22 11:22:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:22:32,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:32,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:32,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 11:22:32,841 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:32,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:32,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1076167470, now seen corresponding path program 11 times [2020-12-22 11:22:32,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:32,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218010633] [2020-12-22 11:22:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:33,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218010633] [2020-12-22 11:22:33,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:22:33,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 11:22:33,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743549682] [2020-12-22 11:22:33,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 11:22:33,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:33,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 11:22:33,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:22:33,435 INFO L87 Difference]: Start difference. First operand 235 states and 514 transitions. Second operand 16 states. [2020-12-22 11:22:34,468 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-12-22 11:22:35,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:35,569 INFO L93 Difference]: Finished difference Result 439 states and 975 transitions. [2020-12-22 11:22:35,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 11:22:35,570 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-12-22 11:22:35,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:35,575 INFO L225 Difference]: With dead ends: 439 [2020-12-22 11:22:35,575 INFO L226 Difference]: Without dead ends: 439 [2020-12-22 11:22:35,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2020-12-22 11:22:35,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-12-22 11:22:35,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 214. [2020-12-22 11:22:35,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 11:22:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 472 transitions. [2020-12-22 11:22:35,585 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 472 transitions. Word has length 18 [2020-12-22 11:22:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:35,585 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 472 transitions. [2020-12-22 11:22:35,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 11:22:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 472 transitions. [2020-12-22 11:22:35,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:22:35,586 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:35,586 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:35,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 11:22:35,587 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:35,587 INFO L82 PathProgramCache]: Analyzing trace with hash 706956213, now seen corresponding path program 1 times [2020-12-22 11:22:35,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:35,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324081791] [2020-12-22 11:22:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:35,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324081791] [2020-12-22 11:22:35,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928310383] [2020-12-22 11:22:35,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:22:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:35,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:22:35,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:22:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:35,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:22:35,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 11:22:35,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620029476] [2020-12-22 11:22:35,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:22:35,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:35,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:22:35,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:22:35,840 INFO L87 Difference]: Start difference. First operand 214 states and 472 transitions. Second operand 5 states. [2020-12-22 11:22:35,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:35,872 INFO L93 Difference]: Finished difference Result 318 states and 701 transitions. [2020-12-22 11:22:35,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:22:35,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-22 11:22:35,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:35,878 INFO L225 Difference]: With dead ends: 318 [2020-12-22 11:22:35,878 INFO L226 Difference]: Without dead ends: 318 [2020-12-22 11:22:35,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:22:35,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-12-22 11:22:35,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 270. [2020-12-22 11:22:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-12-22 11:22:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 607 transitions. [2020-12-22 11:22:35,899 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 607 transitions. Word has length 21 [2020-12-22 11:22:35,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:35,902 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 607 transitions. [2020-12-22 11:22:35,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:22:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 607 transitions. [2020-12-22 11:22:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:22:35,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:35,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:36,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-22 11:22:36,119 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:36,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:36,120 INFO L82 PathProgramCache]: Analyzing trace with hash 72330997, now seen corresponding path program 12 times [2020-12-22 11:22:36,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:36,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000654085] [2020-12-22 11:22:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:36,950 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-12-22 11:22:37,566 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:37,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000654085] [2020-12-22 11:22:37,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98646592] [2020-12-22 11:22:37,567 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:22:37,676 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2020-12-22 11:22:37,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:22:37,680 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 102 conjunts are in the unsatisfiable core [2020-12-22 11:22:37,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:22:37,747 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 93 [2020-12-22 11:22:37,755 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:37,798 INFO L625 ElimStorePlain]: treesize reduction 14, result has 79.1 percent of original size [2020-12-22 11:22:37,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:37,813 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:22:37,814 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:37,831 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:37,838 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:37,838 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:22:38,753 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-22 11:22:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:38,774 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:38,803 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:38,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:22:38,807 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:38,875 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2020-12-22 11:22:38,877 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:38,878 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-12-22 11:22:39,089 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:22:39,091 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:22:39,094 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:22:39,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:22:39,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:22:39,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,128 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:39,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,137 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:39,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,159 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:22:39,168 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:39,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,186 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:39,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,192 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:39,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,205 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:22:39,208 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:39,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,218 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:39,221 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:22:39,222 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:39,240 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:39,242 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:39,243 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:22:39,789 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:39,790 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:22:39,800 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:39,879 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:22:39,882 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:22:39,887 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:39,888 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:22:39,999 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:22:40,002 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:40,009 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:40,011 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:22:40,011 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:22:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:40,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:22:40,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 35 [2020-12-22 11:22:40,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947601404] [2020-12-22 11:22:40,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-22 11:22:40,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:40,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-22 11:22:40,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1218, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 11:22:40,136 INFO L87 Difference]: Start difference. First operand 270 states and 607 transitions. Second operand 37 states. [2020-12-22 11:22:40,647 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-12-22 11:22:41,039 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:22:41,327 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-12-22 11:22:41,537 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-12-22 11:22:41,834 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-12-22 11:22:42,045 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:22:42,349 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2020-12-22 11:22:42,588 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:22:42,913 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2020-12-22 11:22:43,157 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-12-22 11:22:43,484 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2020-12-22 11:22:43,931 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2020-12-22 11:22:44,841 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-12-22 11:22:45,174 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-12-22 11:22:45,392 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2020-12-22 11:22:45,727 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-12-22 11:22:46,058 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-12-22 11:22:46,368 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-12-22 11:22:46,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:46,987 INFO L93 Difference]: Finished difference Result 402 states and 888 transitions. [2020-12-22 11:22:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-22 11:22:46,989 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 23 [2020-12-22 11:22:46,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:46,991 INFO L225 Difference]: With dead ends: 402 [2020-12-22 11:22:46,991 INFO L226 Difference]: Without dead ends: 402 [2020-12-22 11:22:46,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=492, Invalid=3290, Unknown=0, NotChecked=0, Total=3782 [2020-12-22 11:22:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-12-22 11:22:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 305. [2020-12-22 11:22:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-12-22 11:22:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 684 transitions. [2020-12-22 11:22:47,003 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 684 transitions. Word has length 23 [2020-12-22 11:22:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:47,004 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 684 transitions. [2020-12-22 11:22:47,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-22 11:22:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 684 transitions. [2020-12-22 11:22:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:22:47,005 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:47,005 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:47,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:22:47,220 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:47,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:47,221 INFO L82 PathProgramCache]: Analyzing trace with hash -274164387, now seen corresponding path program 13 times [2020-12-22 11:22:47,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:47,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857798892] [2020-12-22 11:22:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:48,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857798892] [2020-12-22 11:22:48,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692197160] [2020-12-22 11:22:48,600 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:22:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:48,700 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 102 conjunts are in the unsatisfiable core [2020-12-22 11:22:48,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:22:48,733 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 93 [2020-12-22 11:22:48,736 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:48,774 INFO L625 ElimStorePlain]: treesize reduction 14, result has 79.1 percent of original size [2020-12-22 11:22:48,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:48,785 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:22:48,787 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:48,802 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:48,807 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:48,808 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:22:49,693 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-22 11:22:49,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:49,717 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:49,747 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:49,748 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:22:49,755 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:49,829 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2020-12-22 11:22:49,832 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:49,832 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-12-22 11:22:50,069 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:22:50,071 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:22:50,074 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:22:50,080 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:22:50,082 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:22:50,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,110 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:50,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,120 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:50,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,139 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:22:50,142 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:50,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,153 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:50,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,160 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:50,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,175 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:22:50,176 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:50,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,183 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:22:50,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:50,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:22:50,192 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:50,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:50,216 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:50,216 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:22:50,778 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:50,779 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:22:50,785 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:50,887 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2020-12-22 11:22:50,888 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:22:50,890 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:22:50,893 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:50,893 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:22:51,020 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:22:51,023 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:51,031 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:51,033 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:22:51,034 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:22:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:51,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:22:51,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 35 [2020-12-22 11:22:51,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646757807] [2020-12-22 11:22:51,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-22 11:22:51,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:22:51,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-22 11:22:51,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1222, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 11:22:51,179 INFO L87 Difference]: Start difference. First operand 305 states and 684 transitions. Second operand 37 states. [2020-12-22 11:22:51,731 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-12-22 11:22:51,947 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2020-12-22 11:22:52,140 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:22:52,428 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2020-12-22 11:22:52,650 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-12-22 11:22:52,953 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2020-12-22 11:22:53,155 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:22:53,433 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2020-12-22 11:22:53,656 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:22:53,958 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2020-12-22 11:22:54,171 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-12-22 11:22:54,483 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2020-12-22 11:22:54,966 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 59 [2020-12-22 11:22:55,613 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-12-22 11:22:56,022 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2020-12-22 11:22:56,300 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-12-22 11:22:56,575 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2020-12-22 11:22:56,818 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-12-22 11:22:57,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:22:57,388 INFO L93 Difference]: Finished difference Result 408 states and 900 transitions. [2020-12-22 11:22:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-22 11:22:57,389 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 23 [2020-12-22 11:22:57,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:22:57,391 INFO L225 Difference]: With dead ends: 408 [2020-12-22 11:22:57,391 INFO L226 Difference]: Without dead ends: 408 [2020-12-22 11:22:57,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=474, Invalid=3186, Unknown=0, NotChecked=0, Total=3660 [2020-12-22 11:22:57,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-12-22 11:22:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 319. [2020-12-22 11:22:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-12-22 11:22:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 721 transitions. [2020-12-22 11:22:57,404 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 721 transitions. Word has length 23 [2020-12-22 11:22:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:22:57,404 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 721 transitions. [2020-12-22 11:22:57,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-22 11:22:57,404 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 721 transitions. [2020-12-22 11:22:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:22:57,405 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:22:57,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:22:57,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-22 11:22:57,619 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:22:57,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:22:57,620 INFO L82 PathProgramCache]: Analyzing trace with hash 890303927, now seen corresponding path program 14 times [2020-12-22 11:22:57,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:22:57,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521111415] [2020-12-22 11:22:57,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:22:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:22:58,211 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2020-12-22 11:22:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:22:59,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521111415] [2020-12-22 11:22:59,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429791588] [2020-12-22 11:22:59,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:22:59,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 11:22:59,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:22:59,169 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 102 conjunts are in the unsatisfiable core [2020-12-22 11:22:59,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:22:59,188 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 194 [2020-12-22 11:22:59,190 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:59,202 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:59,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:22:59,210 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:22:59,210 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:22:59,222 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:22:59,224 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:22:59,225 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:23:00,026 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-22 11:23:00,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,062 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:00,094 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:00,095 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:23:00,098 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:00,178 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2020-12-22 11:23:00,180 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:00,180 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-12-22 11:23:00,402 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:23:00,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:00,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:00,410 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:00,412 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:23:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,439 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:00,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,447 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:00,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,466 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:23:00,468 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:00,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,479 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:00,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,485 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:00,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,499 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:23:00,501 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:00,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,507 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:00,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,510 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:23:00,511 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:00,534 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:00,538 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:00,538 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:23:00,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:00,924 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:00,924 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 150 [2020-12-22 11:23:00,928 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:01,002 INFO L625 ElimStorePlain]: treesize reduction 62, result has 50.8 percent of original size [2020-12-22 11:23:01,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:23:01,007 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:01,007 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:34 [2020-12-22 11:23:01,209 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:01,210 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 36 [2020-12-22 11:23:01,212 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:01,219 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:01,221 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:23:01,221 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:7 [2020-12-22 11:23:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:01,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:23:01,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 34 [2020-12-22 11:23:01,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706989877] [2020-12-22 11:23:01,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-12-22 11:23:01,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:23:01,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-12-22 11:23:01,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1140, Unknown=0, NotChecked=0, Total=1260 [2020-12-22 11:23:01,234 INFO L87 Difference]: Start difference. First operand 319 states and 721 transitions. Second operand 36 states. [2020-12-22 11:23:01,712 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-12-22 11:23:01,908 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2020-12-22 11:23:02,086 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:23:02,344 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-12-22 11:23:02,543 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-12-22 11:23:02,821 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2020-12-22 11:23:03,020 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:23:03,295 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-12-22 11:23:03,533 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-12-22 11:23:03,817 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2020-12-22 11:23:04,020 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-12-22 11:23:04,315 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-12-22 11:23:04,790 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 56 [2020-12-22 11:23:05,626 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-12-22 11:23:06,047 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2020-12-22 11:23:06,341 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2020-12-22 11:23:06,743 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-22 11:23:06,968 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-22 11:23:07,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:23:07,797 INFO L93 Difference]: Finished difference Result 411 states and 901 transitions. [2020-12-22 11:23:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-22 11:23:07,798 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 23 [2020-12-22 11:23:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:23:07,801 INFO L225 Difference]: With dead ends: 411 [2020-12-22 11:23:07,802 INFO L226 Difference]: Without dead ends: 411 [2020-12-22 11:23:07,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=572, Invalid=3718, Unknown=0, NotChecked=0, Total=4290 [2020-12-22 11:23:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-12-22 11:23:07,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 332. [2020-12-22 11:23:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-12-22 11:23:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 745 transitions. [2020-12-22 11:23:07,812 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 745 transitions. Word has length 23 [2020-12-22 11:23:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:23:07,813 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 745 transitions. [2020-12-22 11:23:07,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-12-22 11:23:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 745 transitions. [2020-12-22 11:23:07,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:23:07,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:23:07,814 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:23:08,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:23:08,029 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:23:08,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:23:08,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1391923213, now seen corresponding path program 15 times [2020-12-22 11:23:08,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:23:08,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010001630] [2020-12-22 11:23:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:23:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:23:08,771 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 44 [2020-12-22 11:23:09,048 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2020-12-22 11:23:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:09,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010001630] [2020-12-22 11:23:09,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389290803] [2020-12-22 11:23:09,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:23:09,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 11:23:09,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:23:09,738 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 102 conjunts are in the unsatisfiable core [2020-12-22 11:23:09,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:23:09,754 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 72 [2020-12-22 11:23:09,756 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:09,797 INFO L625 ElimStorePlain]: treesize reduction 14, result has 79.1 percent of original size [2020-12-22 11:23:09,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:09,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:23:09,805 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:09,821 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:09,824 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:09,824 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:23:10,667 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-22 11:23:10,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:10,682 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:10,712 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:10,712 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:23:10,715 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:10,781 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2020-12-22 11:23:10,782 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:10,783 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-12-22 11:23:11,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:23:11,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:11,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:11,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:11,022 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:23:11,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,042 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:11,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,051 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:11,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,071 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:23:11,073 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:11,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,082 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:11,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,089 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:11,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,103 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:23:11,105 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:11,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,115 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:11,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:11,118 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:23:11,119 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:11,142 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:11,144 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:11,144 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:23:11,651 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:11,652 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:23:11,656 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:11,741 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:23:11,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:23:11,745 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:11,745 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:23:11,851 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:23:11,853 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:11,859 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:11,860 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:23:11,860 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:23:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:11,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:23:11,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2020-12-22 11:23:11,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564826601] [2020-12-22 11:23:11,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-12-22 11:23:11,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:23:11,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-12-22 11:23:11,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 11:23:11,873 INFO L87 Difference]: Start difference. First operand 332 states and 745 transitions. Second operand 35 states. [2020-12-22 11:23:12,388 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2020-12-22 11:23:12,655 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2020-12-22 11:23:12,923 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2020-12-22 11:23:13,132 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2020-12-22 11:23:13,437 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2020-12-22 11:23:13,675 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2020-12-22 11:23:13,966 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-12-22 11:23:14,229 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-12-22 11:23:14,541 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 54 [2020-12-22 11:23:14,765 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2020-12-22 11:23:15,056 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 53 [2020-12-22 11:23:15,447 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 57 [2020-12-22 11:23:16,718 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2020-12-22 11:23:17,001 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2020-12-22 11:23:17,262 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-12-22 11:23:17,500 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-12-22 11:23:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:23:18,011 INFO L93 Difference]: Finished difference Result 456 states and 1010 transitions. [2020-12-22 11:23:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 11:23:18,012 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 23 [2020-12-22 11:23:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:23:18,015 INFO L225 Difference]: With dead ends: 456 [2020-12-22 11:23:18,015 INFO L226 Difference]: Without dead ends: 456 [2020-12-22 11:23:18,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=460, Invalid=2962, Unknown=0, NotChecked=0, Total=3422 [2020-12-22 11:23:18,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-12-22 11:23:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 360. [2020-12-22 11:23:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-22 11:23:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 808 transitions. [2020-12-22 11:23:18,026 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 808 transitions. Word has length 23 [2020-12-22 11:23:18,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:23:18,026 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 808 transitions. [2020-12-22 11:23:18,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-12-22 11:23:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 808 transitions. [2020-12-22 11:23:18,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:23:18,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:23:18,028 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:23:18,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-22 11:23:18,242 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:23:18,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:23:18,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1045427829, now seen corresponding path program 16 times [2020-12-22 11:23:18,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:23:18,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355178542] [2020-12-22 11:23:18,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:23:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:23:18,939 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-12-22 11:23:19,656 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:19,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355178542] [2020-12-22 11:23:19,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548257272] [2020-12-22 11:23:19,656 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:23:19,755 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 11:23:19,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:23:19,758 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-22 11:23:19,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:23:19,774 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2020-12-22 11:23:19,777 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 11:23:19,818 INFO L625 ElimStorePlain]: treesize reduction 22, result has 70.7 percent of original size [2020-12-22 11:23:19,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:19,824 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:23:19,825 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:19,841 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:19,843 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:19,844 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:23:20,665 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-22 11:23:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:20,679 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:20,709 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:20,709 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:23:20,712 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:20,786 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2020-12-22 11:23:20,788 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:20,788 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-12-22 11:23:21,001 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:23:21,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:21,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:21,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:21,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:23:21,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,029 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:21,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,037 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:21,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,052 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:23:21,054 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:21,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,064 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:21,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,071 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:21,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,084 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:23:21,089 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:21,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,098 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:21,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:21,102 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:23:21,103 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:21,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:21,132 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:21,133 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:23:21,654 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:21,655 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:23:21,658 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:21,733 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:23:21,735 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:23:21,737 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:21,737 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:23:21,843 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:23:21,845 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:21,852 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:21,854 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:23:21,854 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:23:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:21,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:23:21,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2020-12-22 11:23:21,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703412940] [2020-12-22 11:23:21,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-12-22 11:23:21,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:23:21,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-12-22 11:23:21,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1092, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 11:23:21,896 INFO L87 Difference]: Start difference. First operand 360 states and 808 transitions. Second operand 35 states. [2020-12-22 11:23:22,452 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-12-22 11:23:22,740 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2020-12-22 11:23:23,053 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2020-12-22 11:23:23,270 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2020-12-22 11:23:23,576 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2020-12-22 11:23:23,795 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2020-12-22 11:23:24,082 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2020-12-22 11:23:24,327 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-12-22 11:23:24,624 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2020-12-22 11:23:24,851 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2020-12-22 11:23:25,148 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2020-12-22 11:23:25,607 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 59 [2020-12-22 11:23:26,317 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-12-22 11:23:26,750 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2020-12-22 11:23:27,042 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2020-12-22 11:23:27,544 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-12-22 11:23:28,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:23:28,144 INFO L93 Difference]: Finished difference Result 462 states and 1022 transitions. [2020-12-22 11:23:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-22 11:23:28,145 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 23 [2020-12-22 11:23:28,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:23:28,148 INFO L225 Difference]: With dead ends: 462 [2020-12-22 11:23:28,148 INFO L226 Difference]: Without dead ends: 462 [2020-12-22 11:23:28,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=444, Invalid=2862, Unknown=0, NotChecked=0, Total=3306 [2020-12-22 11:23:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-12-22 11:23:28,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 374. [2020-12-22 11:23:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-12-22 11:23:28,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 845 transitions. [2020-12-22 11:23:28,158 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 845 transitions. Word has length 23 [2020-12-22 11:23:28,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:23:28,159 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 845 transitions. [2020-12-22 11:23:28,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-12-22 11:23:28,159 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 845 transitions. [2020-12-22 11:23:28,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:23:28,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:23:28,160 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:23:28,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:23:28,374 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:23:28,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:23:28,375 INFO L82 PathProgramCache]: Analyzing trace with hash -2085071153, now seen corresponding path program 17 times [2020-12-22 11:23:28,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:23:28,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868702551] [2020-12-22 11:23:28,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:23:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:23:29,066 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 43 [2020-12-22 11:23:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:29,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868702551] [2020-12-22 11:23:29,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967063975] [2020-12-22 11:23:29,793 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:23:29,894 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 11:23:29,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:23:29,897 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-22 11:23:29,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:23:29,923 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2020-12-22 11:23:29,925 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:29,977 INFO L625 ElimStorePlain]: treesize reduction 18, result has 74.6 percent of original size [2020-12-22 11:23:29,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:29,985 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:23:29,987 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:30,004 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:30,009 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:30,009 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:23:30,895 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-22 11:23:30,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:30,909 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:30,942 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:30,943 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:23:30,946 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:31,029 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2020-12-22 11:23:31,030 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:31,031 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-12-22 11:23:31,269 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:23:31,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:31,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:31,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:31,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:23:31,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,296 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:31,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,306 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:31,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,331 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:23:31,334 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:31,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,344 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:31,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,351 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,365 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:23:31,367 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:31,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,376 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:31,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,378 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:23:31,380 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:31,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:31,403 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:31,404 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:23:31,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:31,784 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:31,785 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 150 [2020-12-22 11:23:31,787 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:31,874 INFO L625 ElimStorePlain]: treesize reduction 62, result has 50.8 percent of original size [2020-12-22 11:23:31,876 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:23:31,878 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:31,878 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:34 [2020-12-22 11:23:32,075 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:32,076 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 36 [2020-12-22 11:23:32,086 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:32,092 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:32,093 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:23:32,094 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:7 [2020-12-22 11:23:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:32,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:23:32,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2020-12-22 11:23:32,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780942880] [2020-12-22 11:23:32,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-12-22 11:23:32,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:23:32,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-12-22 11:23:32,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 11:23:32,132 INFO L87 Difference]: Start difference. First operand 374 states and 845 transitions. Second operand 35 states. [2020-12-22 11:23:32,636 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2020-12-22 11:23:32,890 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2020-12-22 11:23:33,173 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2020-12-22 11:23:33,385 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2020-12-22 11:23:33,653 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2020-12-22 11:23:33,872 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2020-12-22 11:23:34,134 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-12-22 11:23:34,368 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-12-22 11:23:34,652 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 54 [2020-12-22 11:23:34,876 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2020-12-22 11:23:35,151 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 55 [2020-12-22 11:23:35,600 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 59 [2020-12-22 11:23:36,448 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-22 11:23:36,891 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-12-22 11:23:37,220 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-12-22 11:23:37,879 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-22 11:23:38,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:23:38,753 INFO L93 Difference]: Finished difference Result 465 states and 1023 transitions. [2020-12-22 11:23:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-12-22 11:23:38,754 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 23 [2020-12-22 11:23:38,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:23:38,757 INFO L225 Difference]: With dead ends: 465 [2020-12-22 11:23:38,757 INFO L226 Difference]: Without dead ends: 465 [2020-12-22 11:23:38,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 976 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=544, Invalid=3488, Unknown=0, NotChecked=0, Total=4032 [2020-12-22 11:23:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-12-22 11:23:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 332. [2020-12-22 11:23:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-12-22 11:23:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 745 transitions. [2020-12-22 11:23:38,769 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 745 transitions. Word has length 23 [2020-12-22 11:23:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:23:38,769 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 745 transitions. [2020-12-22 11:23:38,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-12-22 11:23:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 745 transitions. [2020-12-22 11:23:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:23:38,770 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:23:38,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:23:38,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-22 11:23:38,985 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:23:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:23:38,986 INFO L82 PathProgramCache]: Analyzing trace with hash 129552435, now seen corresponding path program 18 times [2020-12-22 11:23:38,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:23:38,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625880602] [2020-12-22 11:23:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:23:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:23:39,919 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 50 [2020-12-22 11:23:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:40,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625880602] [2020-12-22 11:23:40,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120343792] [2020-12-22 11:23:40,752 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:23:40,888 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2020-12-22 11:23:40,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:23:40,891 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-22 11:23:40,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:23:40,912 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 93 [2020-12-22 11:23:40,914 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:40,954 INFO L625 ElimStorePlain]: treesize reduction 14, result has 79.1 percent of original size [2020-12-22 11:23:40,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:40,963 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:23:40,964 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:40,979 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:40,982 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:40,982 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:23:41,760 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:23:41,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:41,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:41,781 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:41,810 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:41,810 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:23:41,813 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:41,877 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:23:41,879 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:41,879 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:23:42,245 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:23:42,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:42,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:42,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:42,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:23:42,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,271 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,283 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,308 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:23:42,310 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:42,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,322 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:42,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,331 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:42,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,351 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:23:42,352 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,361 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:42,364 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:23:42,366 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:42,390 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:42,392 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:42,392 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:23:42,970 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:42,971 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:23:42,974 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:43,059 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:23:43,062 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:23:43,064 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:43,064 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:23:43,167 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:23:43,169 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:43,176 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:43,177 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:23:43,177 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:23:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:43,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:23:43,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 36 [2020-12-22 11:23:43,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372245971] [2020-12-22 11:23:43,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-12-22 11:23:43,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:23:43,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-12-22 11:23:43,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2020-12-22 11:23:43,314 INFO L87 Difference]: Start difference. First operand 332 states and 745 transitions. Second operand 38 states. [2020-12-22 11:23:43,911 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2020-12-22 11:23:44,146 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-12-22 11:23:44,471 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-12-22 11:23:44,723 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-12-22 11:23:45,031 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2020-12-22 11:23:45,356 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2020-12-22 11:23:45,717 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2020-12-22 11:23:46,161 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 63 [2020-12-22 11:23:46,657 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 61 [2020-12-22 11:23:47,357 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-12-22 11:23:47,547 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2020-12-22 11:23:48,000 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 50 [2020-12-22 11:23:48,230 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 54 [2020-12-22 11:23:48,604 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 57 [2020-12-22 11:23:48,947 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2020-12-22 11:23:49,227 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2020-12-22 11:23:49,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:23:49,809 INFO L93 Difference]: Finished difference Result 436 states and 971 transitions. [2020-12-22 11:23:49,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-22 11:23:49,810 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 23 [2020-12-22 11:23:49,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:23:49,812 INFO L225 Difference]: With dead ends: 436 [2020-12-22 11:23:49,812 INFO L226 Difference]: Without dead ends: 436 [2020-12-22 11:23:49,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=438, Invalid=3102, Unknown=0, NotChecked=0, Total=3540 [2020-12-22 11:23:49,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-12-22 11:23:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 348. [2020-12-22 11:23:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-12-22 11:23:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 784 transitions. [2020-12-22 11:23:49,831 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 784 transitions. Word has length 23 [2020-12-22 11:23:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:23:49,832 INFO L481 AbstractCegarLoop]: Abstraction has 348 states and 784 transitions. [2020-12-22 11:23:49,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-12-22 11:23:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 784 transitions. [2020-12-22 11:23:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:23:49,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:23:49,833 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:23:50,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 11:23:50,044 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:23:50,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:23:50,045 INFO L82 PathProgramCache]: Analyzing trace with hash -216942949, now seen corresponding path program 19 times [2020-12-22 11:23:50,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:23:50,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423484374] [2020-12-22 11:23:50,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:23:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:23:50,933 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 50 [2020-12-22 11:23:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:51,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423484374] [2020-12-22 11:23:51,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805403384] [2020-12-22 11:23:51,568 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:23:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:23:51,684 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 102 conjunts are in the unsatisfiable core [2020-12-22 11:23:51,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:23:51,702 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2020-12-22 11:23:51,704 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 11:23:51,744 INFO L625 ElimStorePlain]: treesize reduction 22, result has 70.7 percent of original size [2020-12-22 11:23:51,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:51,751 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:23:51,752 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:51,769 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:51,772 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:51,772 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:23:52,518 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:23:52,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:52,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:52,532 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:52,565 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:52,566 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:23:52,568 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:52,633 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:23:52,634 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:52,634 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:23:52,990 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:23:52,991 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:52,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:52,996 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:23:52,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:23:53,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,014 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:53,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,023 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:53,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,047 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:23:53,049 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:53,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,060 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:53,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,067 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:53,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,080 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:23:53,081 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,090 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:23:53,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:23:53,092 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:23:53,097 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:53,124 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:53,126 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:53,126 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:23:53,681 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:53,682 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:23:53,686 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:53,780 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:23:53,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:23:53,784 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:23:53,784 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:23:53,903 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:23:53,907 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:23:53,913 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:23:53,914 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:23:53,915 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:23:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:23:54,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:23:54,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 36 [2020-12-22 11:23:54,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698122239] [2020-12-22 11:23:54,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-12-22 11:23:54,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:23:54,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-12-22 11:23:54,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1298, Unknown=0, NotChecked=0, Total=1406 [2020-12-22 11:23:54,063 INFO L87 Difference]: Start difference. First operand 348 states and 784 transitions. Second operand 38 states. [2020-12-22 11:23:54,716 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2020-12-22 11:23:54,968 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-12-22 11:23:55,321 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2020-12-22 11:23:55,598 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2020-12-22 11:23:55,941 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 53 [2020-12-22 11:23:56,301 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2020-12-22 11:23:56,697 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2020-12-22 11:23:57,258 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2020-12-22 11:23:57,808 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 61 [2020-12-22 11:23:58,293 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2020-12-22 11:23:58,551 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2020-12-22 11:23:58,853 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-12-22 11:23:59,098 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 50 [2020-12-22 11:23:59,423 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2020-12-22 11:23:59,787 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 49 [2020-12-22 11:24:00,066 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2020-12-22 11:24:00,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:00,712 INFO L93 Difference]: Finished difference Result 442 states and 983 transitions. [2020-12-22 11:24:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-22 11:24:00,713 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 23 [2020-12-22 11:24:00,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:00,715 INFO L225 Difference]: With dead ends: 442 [2020-12-22 11:24:00,715 INFO L226 Difference]: Without dead ends: 442 [2020-12-22 11:24:00,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=420, Invalid=3002, Unknown=0, NotChecked=0, Total=3422 [2020-12-22 11:24:00,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-12-22 11:24:00,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 362. [2020-12-22 11:24:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-12-22 11:24:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 821 transitions. [2020-12-22 11:24:00,723 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 821 transitions. Word has length 23 [2020-12-22 11:24:00,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:00,724 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 821 transitions. [2020-12-22 11:24:00,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-12-22 11:24:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 821 transitions. [2020-12-22 11:24:00,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:24:00,725 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:00,725 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:00,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-22 11:24:00,932 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:00,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:00,933 INFO L82 PathProgramCache]: Analyzing trace with hash 947525365, now seen corresponding path program 20 times [2020-12-22 11:24:00,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:00,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262090235] [2020-12-22 11:24:00,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:02,371 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-12-22 11:24:02,658 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:02,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262090235] [2020-12-22 11:24:02,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243386767] [2020-12-22 11:24:02,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:02,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 11:24:02,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:02,779 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 96 conjunts are in the unsatisfiable core [2020-12-22 11:24:02,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:02,798 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 113 [2020-12-22 11:24:02,801 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:02,850 INFO L625 ElimStorePlain]: treesize reduction 14, result has 79.1 percent of original size [2020-12-22 11:24:02,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:02,860 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:24:02,862 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:02,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:02,883 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:02,884 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:24:03,674 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:24:03,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:03,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:03,687 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:03,721 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:03,722 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:24:03,724 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:03,799 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:24:03,801 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:03,801 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:24:04,137 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:24:04,139 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:04,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:04,141 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:04,142 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:24:04,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,158 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:04,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,168 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:04,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:24:04,190 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:04,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,201 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:04,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,210 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:04,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,225 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:24:04,227 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:04,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,237 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:04,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,240 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:24:04,242 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:04,267 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:04,269 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:04,269 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:24:04,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:04,702 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:04,703 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 150 [2020-12-22 11:24:04,706 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:04,809 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-12-22 11:24:04,810 INFO L625 ElimStorePlain]: treesize reduction 62, result has 50.8 percent of original size [2020-12-22 11:24:04,811 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:24:04,814 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:04,814 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:34 [2020-12-22 11:24:05,043 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:05,043 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 36 [2020-12-22 11:24:05,046 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:05,057 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:05,064 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:24:05,064 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:7 [2020-12-22 11:24:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:05,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:05,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 36 [2020-12-22 11:24:05,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658689917] [2020-12-22 11:24:05,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-12-22 11:24:05,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:05,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-12-22 11:24:05,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1287, Unknown=0, NotChecked=0, Total=1406 [2020-12-22 11:24:05,208 INFO L87 Difference]: Start difference. First operand 362 states and 821 transitions. Second operand 38 states. [2020-12-22 11:24:05,629 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-12-22 11:24:05,829 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2020-12-22 11:24:06,066 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-12-22 11:24:06,364 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-12-22 11:24:06,615 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-12-22 11:24:06,887 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-12-22 11:24:07,197 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2020-12-22 11:24:07,532 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-12-22 11:24:07,841 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2020-12-22 11:24:08,231 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2020-12-22 11:24:08,756 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2020-12-22 11:24:09,255 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 61 [2020-12-22 11:24:09,847 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2020-12-22 11:24:10,009 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2020-12-22 11:24:10,471 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2020-12-22 11:24:10,909 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2020-12-22 11:24:11,149 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2020-12-22 11:24:11,735 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 58 [2020-12-22 11:24:12,097 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2020-12-22 11:24:12,326 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2020-12-22 11:24:12,645 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-12-22 11:24:12,913 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2020-12-22 11:24:13,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:13,339 INFO L93 Difference]: Finished difference Result 514 states and 1143 transitions. [2020-12-22 11:24:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-12-22 11:24:13,340 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 23 [2020-12-22 11:24:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:13,343 INFO L225 Difference]: With dead ends: 514 [2020-12-22 11:24:13,343 INFO L226 Difference]: Without dead ends: 514 [2020-12-22 11:24:13,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=599, Invalid=4093, Unknown=0, NotChecked=0, Total=4692 [2020-12-22 11:24:13,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-12-22 11:24:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 332. [2020-12-22 11:24:13,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-12-22 11:24:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 745 transitions. [2020-12-22 11:24:13,353 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 745 transitions. Word has length 23 [2020-12-22 11:24:13,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:13,353 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 745 transitions. [2020-12-22 11:24:13,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-12-22 11:24:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 745 transitions. [2020-12-22 11:24:13,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:24:13,354 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:13,355 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:13,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:13,563 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:13,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:13,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1966659077, now seen corresponding path program 21 times [2020-12-22 11:24:13,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:13,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762834508] [2020-12-22 11:24:13,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:14,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762834508] [2020-12-22 11:24:14,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272348334] [2020-12-22 11:24:14,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:15,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 11:24:15,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:15,009 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 98 conjunts are in the unsatisfiable core [2020-12-22 11:24:15,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:15,027 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 144 [2020-12-22 11:24:15,031 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:15,048 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:15,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:15,056 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:24:15,057 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:15,074 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:15,077 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:15,078 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:24:15,810 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:24:15,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:15,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:15,824 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:15,859 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:15,860 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:24:15,863 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:15,939 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:24:15,941 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:15,941 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:24:16,171 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:24:16,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:16,174 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:16,175 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:16,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:24:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,199 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:16,215 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:16,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,227 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:24:16,230 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:16,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,244 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:16,257 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:16,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,267 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:24:16,271 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:16,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:16,285 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:16,286 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:24:16,287 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:16,310 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:16,312 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:16,312 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:259, output treesize:46 [2020-12-22 11:24:16,961 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:16,962 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:24:16,964 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:17,061 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:24:17,063 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:24:17,066 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:17,066 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:24:17,278 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:24:17,281 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:17,288 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:17,292 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:24:17,292 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:24:17,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:17,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:17,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2020-12-22 11:24:17,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003195766] [2020-12-22 11:24:17,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-12-22 11:24:17,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:17,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-12-22 11:24:17,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1087, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 11:24:17,331 INFO L87 Difference]: Start difference. First operand 332 states and 745 transitions. Second operand 35 states. [2020-12-22 11:24:17,915 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-12-22 11:24:18,145 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 46 [2020-12-22 11:24:18,461 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2020-12-22 11:24:18,712 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-12-22 11:24:19,027 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-12-22 11:24:19,906 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-12-22 11:24:20,149 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-12-22 11:24:20,339 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2020-12-22 11:24:20,747 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2020-12-22 11:24:20,989 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-12-22 11:24:21,374 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2020-12-22 11:24:21,685 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2020-12-22 11:24:21,969 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2020-12-22 11:24:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:22,623 INFO L93 Difference]: Finished difference Result 432 states and 964 transitions. [2020-12-22 11:24:22,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-22 11:24:22,625 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 23 [2020-12-22 11:24:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:22,627 INFO L225 Difference]: With dead ends: 432 [2020-12-22 11:24:22,627 INFO L226 Difference]: Without dead ends: 432 [2020-12-22 11:24:22,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=354, Invalid=2402, Unknown=0, NotChecked=0, Total=2756 [2020-12-22 11:24:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-12-22 11:24:22,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 342. [2020-12-22 11:24:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-12-22 11:24:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 772 transitions. [2020-12-22 11:24:22,636 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 772 transitions. Word has length 23 [2020-12-22 11:24:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:22,636 INFO L481 AbstractCegarLoop]: Abstraction has 342 states and 772 transitions. [2020-12-22 11:24:22,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-12-22 11:24:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 772 transitions. [2020-12-22 11:24:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:24:22,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:22,637 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:22,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-12-22 11:24:22,853 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:22,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1620163693, now seen corresponding path program 22 times [2020-12-22 11:24:22,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:22,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871175386] [2020-12-22 11:24:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:23,498 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-12-22 11:24:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:24,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871175386] [2020-12-22 11:24:24,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288655704] [2020-12-22 11:24:24,063 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:24,181 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 11:24:24,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:24,184 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-22 11:24:24,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:24,210 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 231 [2020-12-22 11:24:24,213 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:24,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:24,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:24,235 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:24:24,236 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:24,255 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:24,258 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:24,258 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:24:25,014 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:24:25,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,028 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:25,064 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:25,064 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:24:25,066 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:25,144 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:24:25,146 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:25,146 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:24:25,361 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:24:25,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:25,364 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:25,367 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:25,368 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:24:25,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,389 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:25,409 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:25,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,423 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:24:25,425 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:25,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,441 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:25,456 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:25,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,466 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:24:25,468 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:25,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:25,482 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:25,483 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:24:25,484 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:25,504 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:25,506 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:25,506 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:259, output treesize:46 [2020-12-22 11:24:26,139 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:26,139 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:24:26,143 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:26,241 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:24:26,242 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:24:26,245 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:26,245 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:24:26,352 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:24:26,355 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:26,363 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:26,365 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:24:26,365 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:24:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:26,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:26,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2020-12-22 11:24:26,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557222665] [2020-12-22 11:24:26,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 11:24:26,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:26,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 11:24:26,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1024, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 11:24:26,409 INFO L87 Difference]: Start difference. First operand 342 states and 772 transitions. Second operand 34 states. [2020-12-22 11:24:26,790 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-12-22 11:24:26,994 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2020-12-22 11:24:27,230 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-12-22 11:24:27,527 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2020-12-22 11:24:27,775 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-12-22 11:24:28,086 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2020-12-22 11:24:29,057 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-12-22 11:24:29,328 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-12-22 11:24:29,528 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2020-12-22 11:24:29,707 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2020-12-22 11:24:30,127 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-12-22 11:24:30,351 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-12-22 11:24:30,574 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2020-12-22 11:24:30,815 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2020-12-22 11:24:31,115 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2020-12-22 11:24:31,478 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2020-12-22 11:24:31,827 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 56 [2020-12-22 11:24:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:32,432 INFO L93 Difference]: Finished difference Result 466 states and 1043 transitions. [2020-12-22 11:24:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-22 11:24:32,433 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 23 [2020-12-22 11:24:32,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:32,436 INFO L225 Difference]: With dead ends: 466 [2020-12-22 11:24:32,436 INFO L226 Difference]: Without dead ends: 466 [2020-12-22 11:24:32,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=406, Invalid=2674, Unknown=0, NotChecked=0, Total=3080 [2020-12-22 11:24:32,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-12-22 11:24:32,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 356. [2020-12-22 11:24:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-12-22 11:24:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 809 transitions. [2020-12-22 11:24:32,444 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 809 transitions. Word has length 23 [2020-12-22 11:24:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:32,444 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 809 transitions. [2020-12-22 11:24:32,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-22 11:24:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 809 transitions. [2020-12-22 11:24:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:24:32,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:32,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:32,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:32,650 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:32,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1510335289, now seen corresponding path program 23 times [2020-12-22 11:24:32,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:32,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70880379] [2020-12-22 11:24:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:33,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70880379] [2020-12-22 11:24:33,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424593100] [2020-12-22 11:24:33,754 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:33,861 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 11:24:33,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:33,863 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-22 11:24:33,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:33,877 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2020-12-22 11:24:33,880 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:33,949 INFO L625 ElimStorePlain]: treesize reduction 18, result has 74.6 percent of original size [2020-12-22 11:24:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:33,957 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:24:33,958 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:33,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:33,981 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:33,981 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:24:34,768 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:24:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:34,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:34,784 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:34,816 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:34,816 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:24:34,819 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:34,894 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:24:34,896 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:34,896 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:24:35,118 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:24:35,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:35,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:35,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:35,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:24:35,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,148 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:35,168 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:35,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,184 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:24:35,186 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:35,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,203 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:35,218 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:35,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,229 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:24:35,230 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:35,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:35,243 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:35,244 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:24:35,245 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:35,268 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:35,270 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:35,271 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:259, output treesize:46 [2020-12-22 11:24:35,796 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:35,797 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 127 [2020-12-22 11:24:35,810 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:35,901 INFO L625 ElimStorePlain]: treesize reduction 58, result has 50.4 percent of original size [2020-12-22 11:24:35,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:24:35,905 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:35,905 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:61, output treesize:32 [2020-12-22 11:24:36,128 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:36,128 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 36 [2020-12-22 11:24:36,130 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:36,138 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:36,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:24:36,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:7 [2020-12-22 11:24:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:36,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:36,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2020-12-22 11:24:36,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788464548] [2020-12-22 11:24:36,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 11:24:36,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:36,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 11:24:36,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 11:24:36,149 INFO L87 Difference]: Start difference. First operand 356 states and 809 transitions. Second operand 34 states. [2020-12-22 11:24:36,757 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2020-12-22 11:24:36,990 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-12-22 11:24:37,312 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2020-12-22 11:24:37,562 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-12-22 11:24:37,790 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-12-22 11:24:38,062 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-12-22 11:24:38,268 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2020-12-22 11:24:38,618 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2020-12-22 11:24:39,800 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2020-12-22 11:24:40,344 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-22 11:24:40,538 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-12-22 11:24:40,761 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-12-22 11:24:41,009 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-22 11:24:41,270 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-12-22 11:24:41,490 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-12-22 11:24:42,217 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-12-22 11:24:42,442 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 56 [2020-12-22 11:24:42,884 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-12-22 11:24:43,136 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2020-12-22 11:24:43,557 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2020-12-22 11:24:43,796 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-12-22 11:24:44,247 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2020-12-22 11:24:44,694 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2020-12-22 11:24:45,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:45,569 INFO L93 Difference]: Finished difference Result 557 states and 1245 transitions. [2020-12-22 11:24:45,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-12-22 11:24:45,570 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 23 [2020-12-22 11:24:45,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:45,574 INFO L225 Difference]: With dead ends: 557 [2020-12-22 11:24:45,574 INFO L226 Difference]: Without dead ends: 557 [2020-12-22 11:24:45,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=596, Invalid=3826, Unknown=0, NotChecked=0, Total=4422 [2020-12-22 11:24:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-12-22 11:24:45,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 332. [2020-12-22 11:24:45,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-12-22 11:24:45,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 745 transitions. [2020-12-22 11:24:45,582 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 745 transitions. Word has length 23 [2020-12-22 11:24:45,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:45,582 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 745 transitions. [2020-12-22 11:24:45,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-22 11:24:45,582 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 745 transitions. [2020-12-22 11:24:45,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:24:45,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:45,583 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:45,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-12-22 11:24:45,784 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:45,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:45,785 INFO L82 PathProgramCache]: Analyzing trace with hash -70004981, now seen corresponding path program 24 times [2020-12-22 11:24:45,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:45,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469999506] [2020-12-22 11:24:45,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:46,179 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-12-22 11:24:46,423 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-12-22 11:24:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:47,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469999506] [2020-12-22 11:24:47,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057181913] [2020-12-22 11:24:47,317 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:47,480 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2020-12-22 11:24:47,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:47,483 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 101 conjunts are in the unsatisfiable core [2020-12-22 11:24:47,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:47,500 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 72 [2020-12-22 11:24:47,502 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:47,553 INFO L625 ElimStorePlain]: treesize reduction 14, result has 79.1 percent of original size [2020-12-22 11:24:47,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:47,561 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:24:47,562 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:47,581 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:47,584 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:47,584 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:24:48,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,066 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:48,102 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:48,103 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:24:48,106 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:48,181 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:24:48,183 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:48,184 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:24:48,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:24:48,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 11:24:48,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:24:48,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 11:24:48,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:24:48,444 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 11:24:48,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:24:48,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:24:48,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 11:24:48,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 11:24:48,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,485 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:48,495 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:48,509 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2020-12-22 11:24:48,511 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:48,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,525 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:48,537 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:48,551 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2020-12-22 11:24:48,553 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:48,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:48,566 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:48,575 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2020-12-22 11:24:48,577 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:48,667 INFO L625 ElimStorePlain]: treesize reduction 134, result has 28.3 percent of original size [2020-12-22 11:24:48,670 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:48,670 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:244, output treesize:55 [2020-12-22 11:24:49,497 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2020-12-22 11:24:49,510 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 11:24:49,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:49,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:24:49,870 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:24:49,924 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:49,925 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 145 [2020-12-22 11:24:49,929 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:24:49,934 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:50,046 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2020-12-22 11:24:50,046 INFO L625 ElimStorePlain]: treesize reduction 69, result has 57.1 percent of original size [2020-12-22 11:24:50,051 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:24:50,051 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:89, output treesize:72 [2020-12-22 11:24:50,192 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:24:50,195 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:24:50,203 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:24:50,205 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:24:50,206 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:24:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:50,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:50,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 34 [2020-12-22 11:24:50,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194145763] [2020-12-22 11:24:50,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-12-22 11:24:50,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:50,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-12-22 11:24:50,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2020-12-22 11:24:50,253 INFO L87 Difference]: Start difference. First operand 332 states and 745 transitions. Second operand 36 states. [2020-12-22 11:24:50,691 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-12-22 11:24:50,895 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-12-22 11:24:51,287 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2020-12-22 11:24:51,547 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-12-22 11:24:51,823 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2020-12-22 11:24:52,060 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-12-22 11:24:52,383 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2020-12-22 11:24:52,850 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-12-22 11:24:53,033 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-12-22 11:24:53,479 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 72 [2020-12-22 11:24:53,809 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-12-22 11:24:54,425 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-12-22 11:24:54,746 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-12-22 11:24:55,071 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 59 [2020-12-22 11:24:55,449 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2020-12-22 11:24:55,780 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 62 [2020-12-22 11:24:56,335 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-12-22 11:24:56,706 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 61 [2020-12-22 11:24:57,359 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 64 [2020-12-22 11:24:58,001 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2020-12-22 11:24:58,515 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 66 [2020-12-22 11:24:59,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:59,372 INFO L93 Difference]: Finished difference Result 509 states and 1138 transitions. [2020-12-22 11:24:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 11:24:59,373 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 23 [2020-12-22 11:24:59,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:59,377 INFO L225 Difference]: With dead ends: 509 [2020-12-22 11:24:59,377 INFO L226 Difference]: Without dead ends: 506 [2020-12-22 11:24:59,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=527, Invalid=3133, Unknown=0, NotChecked=0, Total=3660 [2020-12-22 11:24:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-12-22 11:24:59,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 411. [2020-12-22 11:24:59,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-12-22 11:24:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 926 transitions. [2020-12-22 11:24:59,386 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 926 transitions. Word has length 23 [2020-12-22 11:24:59,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:59,386 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 926 transitions. [2020-12-22 11:24:59,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-12-22 11:24:59,387 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 926 transitions. [2020-12-22 11:24:59,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:24:59,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:59,388 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:59,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:59,595 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:59,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:59,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1094463333, now seen corresponding path program 25 times [2020-12-22 11:24:59,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:59,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848167889] [2020-12-22 11:24:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:00,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848167889] [2020-12-22 11:25:00,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721408381] [2020-12-22 11:25:00,782 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:00,893 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-22 11:25:00,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:00,911 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 164 [2020-12-22 11:25:00,913 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:00,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:00,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:00,941 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:25:00,942 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:00,963 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:00,967 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:00,967 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:25:01,817 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:25:01,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:01,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:01,834 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:01,868 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:01,869 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:25:01,872 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:01,954 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:25:01,956 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:01,956 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2020-12-22 11:25:02,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:25:02,184 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:02,186 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:02,190 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:02,191 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:25:02,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,227 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:02,249 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:02,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,267 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:25:02,272 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:02,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,288 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:02,306 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:02,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,316 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:25:02,319 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:02,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,331 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:02,332 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:25:02,333 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:02,355 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:02,357 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:02,358 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:259, output treesize:46 [2020-12-22 11:25:02,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:02,892 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:02,893 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 150 [2020-12-22 11:25:02,896 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:02,993 INFO L625 ElimStorePlain]: treesize reduction 62, result has 50.8 percent of original size [2020-12-22 11:25:02,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:25:02,998 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:02,998 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:34 [2020-12-22 11:25:03,277 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:03,278 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 36 [2020-12-22 11:25:03,280 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:03,289 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:03,291 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:25:03,291 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:7 [2020-12-22 11:25:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:03,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:03,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2020-12-22 11:25:03,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874523484] [2020-12-22 11:25:03,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 11:25:03,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:03,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 11:25:03,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 11:25:03,305 INFO L87 Difference]: Start difference. First operand 411 states and 926 transitions. Second operand 34 states. [2020-12-22 11:25:03,899 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2020-12-22 11:25:04,127 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-12-22 11:25:04,437 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2020-12-22 11:25:04,680 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-12-22 11:25:04,908 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-12-22 11:25:05,169 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-12-22 11:25:05,380 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2020-12-22 11:25:05,704 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-12-22 11:25:06,821 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-12-22 11:25:07,293 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2020-12-22 11:25:07,527 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-12-22 11:25:07,702 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-22 11:25:07,954 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2020-12-22 11:25:08,225 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-12-22 11:25:08,963 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2020-12-22 11:25:09,479 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2020-12-22 11:25:09,836 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-12-22 11:25:10,074 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2020-12-22 11:25:10,500 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2020-12-22 11:25:10,937 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-22 11:25:11,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:11,741 INFO L93 Difference]: Finished difference Result 672 states and 1497 transitions. [2020-12-22 11:25:11,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-22 11:25:11,742 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 23 [2020-12-22 11:25:11,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:11,745 INFO L225 Difference]: With dead ends: 672 [2020-12-22 11:25:11,746 INFO L226 Difference]: Without dead ends: 672 [2020-12-22 11:25:11,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=546, Invalid=3486, Unknown=0, NotChecked=0, Total=4032 [2020-12-22 11:25:11,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-12-22 11:25:11,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 421. [2020-12-22 11:25:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-22 11:25:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 957 transitions. [2020-12-22 11:25:11,755 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 957 transitions. Word has length 23 [2020-12-22 11:25:11,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:11,756 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 957 transitions. [2020-12-22 11:25:11,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-22 11:25:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 957 transitions. [2020-12-22 11:25:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:25:11,757 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:11,757 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:11,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-12-22 11:25:11,971 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:11,972 INFO L82 PathProgramCache]: Analyzing trace with hash -104877979, now seen corresponding path program 26 times [2020-12-22 11:25:11,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:11,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919641904] [2020-12-22 11:25:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:12,418 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 33 [2020-12-22 11:25:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:13,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919641904] [2020-12-22 11:25:13,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414529405] [2020-12-22 11:25:13,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:13,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 11:25:13,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:13,330 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 94 conjunts are in the unsatisfiable core [2020-12-22 11:25:13,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:13,349 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 206 [2020-12-22 11:25:13,352 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:13,371 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:13,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:13,380 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:25:13,381 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:13,402 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:13,405 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:13,406 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:58, output treesize:31 [2020-12-22 11:25:14,224 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-12-22 11:25:14,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,238 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:14,277 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:14,277 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:25:14,280 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:14,362 INFO L625 ElimStorePlain]: treesize reduction 42, result has 55.3 percent of original size [2020-12-22 11:25:14,364 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:14,364 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:52 [2020-12-22 11:25:14,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:25:14,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:14,581 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:14,582 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:14,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:25:14,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,604 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:14,633 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:14,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,642 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:25:14,647 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:14,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,660 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:14,680 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:14,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,687 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:25:14,689 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:14,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:14,702 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:14,703 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:25:14,704 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:14,728 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:14,729 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:14,729 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:259, output treesize:46 [2020-12-22 11:25:15,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:15,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:15,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:15,109 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:15,110 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 150 [2020-12-22 11:25:15,113 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:15,193 INFO L625 ElimStorePlain]: treesize reduction 62, result has 49.6 percent of original size [2020-12-22 11:25:15,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:25:15,197 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:15,198 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:65, output treesize:31 [2020-12-22 11:25:15,507 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:15,507 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 36 [2020-12-22 11:25:15,509 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:15,517 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:15,519 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:25:15,519 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:7 [2020-12-22 11:25:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:15,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:15,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 34 [2020-12-22 11:25:15,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228426578] [2020-12-22 11:25:15,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-12-22 11:25:15,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:15,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-12-22 11:25:15,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1146, Unknown=0, NotChecked=0, Total=1260 [2020-12-22 11:25:15,650 INFO L87 Difference]: Start difference. First operand 421 states and 957 transitions. Second operand 36 states. [2020-12-22 11:25:16,245 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-12-22 11:25:16,483 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-12-22 11:25:16,811 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-12-22 11:25:17,052 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-12-22 11:25:17,339 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-12-22 11:25:17,533 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-12-22 11:25:17,824 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-12-22 11:25:18,801 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-12-22 11:25:19,327 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-12-22 11:25:19,512 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-22 11:25:19,825 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-12-22 11:25:20,284 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-22 11:25:20,546 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-12-22 11:25:21,051 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-12-22 11:25:21,404 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2020-12-22 11:25:21,649 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-12-22 11:25:22,026 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2020-12-22 11:25:22,459 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-12-22 11:25:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:23,462 INFO L93 Difference]: Finished difference Result 545 states and 1195 transitions. [2020-12-22 11:25:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-22 11:25:23,463 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 23 [2020-12-22 11:25:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:23,466 INFO L225 Difference]: With dead ends: 545 [2020-12-22 11:25:23,466 INFO L226 Difference]: Without dead ends: 545 [2020-12-22 11:25:23,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=550, Invalid=3482, Unknown=0, NotChecked=0, Total=4032 [2020-12-22 11:25:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-12-22 11:25:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 373. [2020-12-22 11:25:23,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-12-22 11:25:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 826 transitions. [2020-12-22 11:25:23,475 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 826 transitions. Word has length 23 [2020-12-22 11:25:23,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:23,476 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 826 transitions. [2020-12-22 11:25:23,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-12-22 11:25:23,476 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 826 transitions. [2020-12-22 11:25:23,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:25:23,477 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:23,477 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:23,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:23,692 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:23,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1833669239, now seen corresponding path program 27 times [2020-12-22 11:25:23,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:23,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512041530] [2020-12-22 11:25:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:24,263 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2020-12-22 11:25:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:25,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512041530] [2020-12-22 11:25:25,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517266131] [2020-12-22 11:25:25,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:25,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 11:25:25,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:25,584 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-22 11:25:25,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:25,606 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2020-12-22 11:25:25,609 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 11:25:25,671 INFO L625 ElimStorePlain]: treesize reduction 22, result has 70.7 percent of original size [2020-12-22 11:25:25,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:25,680 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-12-22 11:25:25,681 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:25,703 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:25,707 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:25,707 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:58, output treesize:31 [2020-12-22 11:25:26,555 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-22 11:25:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:26,679 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:26,714 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:26,715 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-12-22 11:25:26,718 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:26,804 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2020-12-22 11:25:26,806 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:26,807 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-12-22 11:25:27,091 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 11:25:27,092 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:27,093 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:27,095 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 11:25:27,096 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 11:25:27,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,114 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:27,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,124 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:27,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,145 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2020-12-22 11:25:27,147 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:27,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,160 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:27,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,170 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:27,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,195 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-22 11:25:27,197 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:27,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,207 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 11:25:27,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:25:27,210 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-12-22 11:25:27,212 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:27,237 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:27,239 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:27,240 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:268, output treesize:49 [2020-12-22 11:25:27,936 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:27,937 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 130 [2020-12-22 11:25:27,940 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:28,046 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2020-12-22 11:25:28,047 INFO L625 ElimStorePlain]: treesize reduction 58, result has 51.7 percent of original size [2020-12-22 11:25:28,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:25:28,058 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:25:28,058 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:68, output treesize:35 [2020-12-22 11:25:28,181 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-22 11:25:28,184 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:25:28,191 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:25:28,193 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:25:28,193 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:7 [2020-12-22 11:25:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:28,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:28,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 34 [2020-12-22 11:25:28,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582687654] [2020-12-22 11:25:28,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-12-22 11:25:28,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:28,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-12-22 11:25:28,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1156, Unknown=0, NotChecked=0, Total=1260 [2020-12-22 11:25:28,203 INFO L87 Difference]: Start difference. First operand 373 states and 826 transitions. Second operand 36 states. [2020-12-22 11:25:28,680 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-12-22 11:25:28,918 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2020-12-22 11:25:29,217 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-12-22 11:25:29,586 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2020-12-22 11:25:29,939 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 52 [2020-12-22 11:25:30,292 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2020-12-22 11:25:30,652 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-12-22 11:25:31,031 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2020-12-22 11:25:31,476 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 63 [2020-12-22 11:25:31,999 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 61 [2020-12-22 11:25:32,474 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2020-12-22 11:25:32,879 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-12-22 11:25:33,110 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 47 [2020-12-22 11:25:33,469 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-12-22 11:25:33,876 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2020-12-22 11:25:34,119 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 53 [2020-12-22 11:25:34,397 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-12-22 11:25:34,597 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2020-12-22 11:25:34,987 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 55 [2020-12-22 11:25:35,301 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53