/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/queue_ok_longest.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 20:07:33,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 20:07:33,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 20:07:33,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 20:07:33,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 20:07:33,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 20:07:33,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 20:07:33,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 20:07:33,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 20:07:33,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 20:07:33,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 20:07:33,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 20:07:33,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 20:07:33,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 20:07:33,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 20:07:33,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 20:07:33,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 20:07:33,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 20:07:33,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 20:07:33,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 20:07:33,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 20:07:33,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 20:07:33,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 20:07:33,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 20:07:33,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 20:07:33,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 20:07:33,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 20:07:33,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 20:07:33,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 20:07:33,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 20:07:33,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 20:07:33,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 20:07:33,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 20:07:33,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 20:07:33,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 20:07:33,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 20:07:33,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 20:07:33,277 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 20:07:33,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 20:07:33,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 20:07:33,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 20:07:33,280 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 20:07:33,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 20:07:33,280 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 20:07:33,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 20:07:33,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 20:07:33,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 20:07:33,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 20:07:33,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 20:07:33,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 20:07:33,282 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 20:07:33,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 20:07:33,283 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 20:07:33,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 20:07:33,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 20:07:33,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 20:07:33,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 20:07:33,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 20:07:33,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 20:07:33,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 20:07:33,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 20:07:33,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 20:07:33,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 20:07:33,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 20:07:33,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 20:07:33,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 20:07:33,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 20:07:33,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 20:07:33,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 20:07:33,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 20:07:33,606 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 20:07:33,607 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longest.i [2020-10-15 20:07:33,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854dfbc27/11d810d93d104f6a9edd40c3f824c552/FLAGfbdd82b90 [2020-10-15 20:07:34,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 20:07:34,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i [2020-10-15 20:07:34,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854dfbc27/11d810d93d104f6a9edd40c3f824c552/FLAGfbdd82b90 [2020-10-15 20:07:34,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854dfbc27/11d810d93d104f6a9edd40c3f824c552 [2020-10-15 20:07:34,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 20:07:34,530 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 20:07:34,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 20:07:34,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 20:07:34,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 20:07:34,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:07:34" (1/1) ... [2020-10-15 20:07:34,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd10c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:34, skipping insertion in model container [2020-10-15 20:07:34,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:07:34" (1/1) ... [2020-10-15 20:07:34,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 20:07:34,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 20:07:35,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:07:35,219 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 20:07:35,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:07:35,427 INFO L208 MainTranslator]: Completed translation [2020-10-15 20:07:35,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35 WrapperNode [2020-10-15 20:07:35,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 20:07:35,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 20:07:35,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 20:07:35,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 20:07:35,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 20:07:35,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 20:07:35,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 20:07:35,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 20:07:35,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... [2020-10-15 20:07:35,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 20:07:35,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 20:07:35,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 20:07:35,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 20:07:35,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 20:07:35,626 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-15 20:07:35,626 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-15 20:07:35,627 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-15 20:07:35,627 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-15 20:07:35,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 20:07:35,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 20:07:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 20:07:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 20:07:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 20:07:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 20:07:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 20:07:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 20:07:35,631 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 20:07:36,474 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 20:07:36,474 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-15 20:07:36,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:07:36 BoogieIcfgContainer [2020-10-15 20:07:36,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 20:07:36,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 20:07:36,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 20:07:36,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 20:07:36,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:07:34" (1/3) ... [2020-10-15 20:07:36,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d1830d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:07:36, skipping insertion in model container [2020-10-15 20:07:36,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:35" (2/3) ... [2020-10-15 20:07:36,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d1830d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:07:36, skipping insertion in model container [2020-10-15 20:07:36,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:07:36" (3/3) ... [2020-10-15 20:07:36,487 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2020-10-15 20:07:36,498 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 20:07:36,499 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 20:07:36,506 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 20:07:36,507 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 20:07:36,590 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,590 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,590 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,591 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,591 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,591 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,592 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,592 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,592 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,592 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,593 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,593 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,593 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,594 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,594 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,594 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,594 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,595 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,596 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,596 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,596 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,596 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,596 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,596 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,597 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,597 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,597 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,597 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,597 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,598 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,598 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,598 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,598 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,598 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,599 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,599 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,599 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,599 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,600 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,600 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,601 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,602 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,602 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,603 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,603 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,603 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,603 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,604 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,605 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,605 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,605 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,605 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,606 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,606 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,606 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,606 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,607 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,608 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,608 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,608 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,608 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,609 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,609 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,609 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,609 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,610 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,610 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,610 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,610 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,611 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,612 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,612 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,613 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,613 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,613 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,613 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,614 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,614 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,614 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,615 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,615 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,615 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,615 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,617 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,617 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,618 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,618 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,618 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,618 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,618 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,619 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,619 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,619 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,620 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,620 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,620 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,620 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,625 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,626 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,626 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,626 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,626 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,627 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,627 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,627 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,627 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,627 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,627 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,628 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,628 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,628 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,628 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,629 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,629 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,629 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,629 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,629 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,630 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,630 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,630 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,630 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,630 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,631 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,631 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,631 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,631 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,632 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,632 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,632 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,632 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,632 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,633 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,633 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,633 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,633 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,633 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,634 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,634 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,634 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,634 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,635 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,635 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,635 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,635 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,635 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,636 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,636 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,636 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,636 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,636 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,637 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,637 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,637 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,637 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,638 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,638 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,639 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,641 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,641 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,641 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,641 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,645 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,645 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,645 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,646 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,646 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,646 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,646 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,647 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,648 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,648 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,648 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,649 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,649 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,649 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,649 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,658 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,659 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,660 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,660 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,661 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,662 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,662 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,664 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:36,710 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 20:07:36,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:07:36,731 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:07:36,731 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:07:36,731 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:07:36,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:07:36,731 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:07:36,731 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:07:36,731 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:07:36,748 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:07:36,751 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 204 transitions, 430 flow [2020-10-15 20:07:36,754 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 204 transitions, 430 flow [2020-10-15 20:07:36,756 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 196 places, 204 transitions, 430 flow [2020-10-15 20:07:36,837 INFO L129 PetriNetUnfolder]: 14/204 cut-off events. [2020-10-15 20:07:36,837 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-15 20:07:36,845 INFO L80 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 204 events. 14/204 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 365 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 139. Up to 3 conditions per place. [2020-10-15 20:07:36,854 INFO L117 LiptonReduction]: Number of co-enabled transitions 9440 [2020-10-15 20:07:39,974 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-15 20:07:40,882 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 20:07:41,084 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-15 20:07:41,698 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 122 [2020-10-15 20:07:41,886 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 20:07:42,693 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2020-10-15 20:07:43,377 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 20:07:43,399 INFO L132 LiptonReduction]: Checked pairs total: 22061 [2020-10-15 20:07:43,399 INFO L134 LiptonReduction]: Total number of compositions: 184 [2020-10-15 20:07:43,406 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 55 transitions, 132 flow [2020-10-15 20:07:43,454 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 716 states. [2020-10-15 20:07:43,456 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states. [2020-10-15 20:07:43,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-15 20:07:43,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:43,463 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-15 20:07:43,464 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:43,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:43,470 INFO L82 PathProgramCache]: Analyzing trace with hash 810, now seen corresponding path program 1 times [2020-10-15 20:07:43,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:43,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493048289] [2020-10-15 20:07:43,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:43,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493048289] [2020-10-15 20:07:43,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:43,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-15 20:07:43,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843683339] [2020-10-15 20:07:43,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 20:07:43,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:43,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 20:07:43,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 20:07:43,631 INFO L87 Difference]: Start difference. First operand 716 states. Second operand 2 states. [2020-10-15 20:07:43,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:43,677 INFO L93 Difference]: Finished difference Result 715 states and 1901 transitions. [2020-10-15 20:07:43,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 20:07:43,679 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-15 20:07:43,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:43,717 INFO L225 Difference]: With dead ends: 715 [2020-10-15 20:07:43,717 INFO L226 Difference]: Without dead ends: 524 [2020-10-15 20:07:43,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 20:07:43,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-10-15 20:07:43,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2020-10-15 20:07:43,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-15 20:07:43,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1400 transitions. [2020-10-15 20:07:43,811 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1400 transitions. Word has length 1 [2020-10-15 20:07:43,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:43,812 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 1400 transitions. [2020-10-15 20:07:43,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 20:07:43,812 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1400 transitions. [2020-10-15 20:07:43,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 20:07:43,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:43,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:43,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 20:07:43,817 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:43,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:43,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1385599744, now seen corresponding path program 1 times [2020-10-15 20:07:43,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:43,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671468134] [2020-10-15 20:07:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:44,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671468134] [2020-10-15 20:07:44,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:44,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 20:07:44,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568382209] [2020-10-15 20:07:44,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 20:07:44,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:44,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 20:07:44,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:44,035 INFO L87 Difference]: Start difference. First operand 524 states and 1400 transitions. Second operand 3 states. [2020-10-15 20:07:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:44,052 INFO L93 Difference]: Finished difference Result 236 states and 509 transitions. [2020-10-15 20:07:44,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 20:07:44,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-15 20:07:44,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:44,054 INFO L225 Difference]: With dead ends: 236 [2020-10-15 20:07:44,055 INFO L226 Difference]: Without dead ends: 212 [2020-10-15 20:07:44,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:44,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-15 20:07:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-15 20:07:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-15 20:07:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 464 transitions. [2020-10-15 20:07:44,068 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 464 transitions. Word has length 15 [2020-10-15 20:07:44,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:44,068 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 464 transitions. [2020-10-15 20:07:44,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 20:07:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 464 transitions. [2020-10-15 20:07:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 20:07:44,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:44,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:44,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 20:07:44,071 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:44,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:44,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1061498615, now seen corresponding path program 1 times [2020-10-15 20:07:44,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:44,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528355798] [2020-10-15 20:07:44,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:44,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528355798] [2020-10-15 20:07:44,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:44,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:07:44,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093201948] [2020-10-15 20:07:44,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 20:07:44,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:44,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 20:07:44,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:44,212 INFO L87 Difference]: Start difference. First operand 212 states and 464 transitions. Second operand 3 states. [2020-10-15 20:07:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:44,233 INFO L93 Difference]: Finished difference Result 272 states and 590 transitions. [2020-10-15 20:07:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 20:07:44,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-15 20:07:44,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:44,236 INFO L225 Difference]: With dead ends: 272 [2020-10-15 20:07:44,236 INFO L226 Difference]: Without dead ends: 272 [2020-10-15 20:07:44,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-15 20:07:44,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 218. [2020-10-15 20:07:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 20:07:44,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 476 transitions. [2020-10-15 20:07:44,249 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 476 transitions. Word has length 19 [2020-10-15 20:07:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:44,249 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 476 transitions. [2020-10-15 20:07:44,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 20:07:44,249 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 476 transitions. [2020-10-15 20:07:44,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 20:07:44,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:44,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:44,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 20:07:44,253 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:44,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:44,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1197878433, now seen corresponding path program 1 times [2020-10-15 20:07:44,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:44,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945974521] [2020-10-15 20:07:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:44,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945974521] [2020-10-15 20:07:44,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:44,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:07:44,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042365421] [2020-10-15 20:07:44,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 20:07:44,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:44,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 20:07:44,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:44,317 INFO L87 Difference]: Start difference. First operand 218 states and 476 transitions. Second operand 3 states. [2020-10-15 20:07:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:44,338 INFO L93 Difference]: Finished difference Result 166 states and 334 transitions. [2020-10-15 20:07:44,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 20:07:44,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-15 20:07:44,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:44,340 INFO L225 Difference]: With dead ends: 166 [2020-10-15 20:07:44,340 INFO L226 Difference]: Without dead ends: 164 [2020-10-15 20:07:44,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-15 20:07:44,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-15 20:07:44,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-15 20:07:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 331 transitions. [2020-10-15 20:07:44,347 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 331 transitions. Word has length 26 [2020-10-15 20:07:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:44,348 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 331 transitions. [2020-10-15 20:07:44,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 20:07:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 331 transitions. [2020-10-15 20:07:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 20:07:44,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:44,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:44,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 20:07:44,350 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:44,351 INFO L82 PathProgramCache]: Analyzing trace with hash -969107883, now seen corresponding path program 1 times [2020-10-15 20:07:44,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:44,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631718317] [2020-10-15 20:07:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:44,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:44,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631718317] [2020-10-15 20:07:44,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713421665] [2020-10-15 20:07:44,448 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 [2020-10-15 20:07:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:44,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-15 20:07:44,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:44,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:44,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:44,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-15 20:07:44,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913990901] [2020-10-15 20:07:44,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:07:44,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:44,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:07:44,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:07:44,605 INFO L87 Difference]: Start difference. First operand 164 states and 331 transitions. Second operand 4 states. [2020-10-15 20:07:44,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:44,641 INFO L93 Difference]: Finished difference Result 240 states and 472 transitions. [2020-10-15 20:07:44,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:07:44,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-15 20:07:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:44,644 INFO L225 Difference]: With dead ends: 240 [2020-10-15 20:07:44,644 INFO L226 Difference]: Without dead ends: 240 [2020-10-15 20:07:44,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:07:44,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-15 20:07:44,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 204. [2020-10-15 20:07:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-15 20:07:44,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 405 transitions. [2020-10-15 20:07:44,653 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 405 transitions. Word has length 27 [2020-10-15 20:07:44,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:44,654 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 405 transitions. [2020-10-15 20:07:44,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:07:44,654 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 405 transitions. [2020-10-15 20:07:44,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-15 20:07:44,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:44,655 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:44,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:44,871 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:44,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1561383711, now seen corresponding path program 2 times [2020-10-15 20:07:44,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:44,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695171013] [2020-10-15 20:07:44,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:44,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695171013] [2020-10-15 20:07:44,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294047394] [2020-10-15 20:07:44,988 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 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 [2020-10-15 20:07:45,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 20:07:45,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:45,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 20:07:45,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:45,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:45,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:45,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-15 20:07:45,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442260356] [2020-10-15 20:07:45,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:07:45,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:45,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:07:45,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:07:45,169 INFO L87 Difference]: Start difference. First operand 204 states and 405 transitions. Second operand 5 states. [2020-10-15 20:07:45,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:45,219 INFO L93 Difference]: Finished difference Result 280 states and 546 transitions. [2020-10-15 20:07:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:07:45,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-15 20:07:45,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:45,222 INFO L225 Difference]: With dead ends: 280 [2020-10-15 20:07:45,223 INFO L226 Difference]: Without dead ends: 280 [2020-10-15 20:07:45,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:07:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-15 20:07:45,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 244. [2020-10-15 20:07:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-15 20:07:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 479 transitions. [2020-10-15 20:07:45,232 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 479 transitions. Word has length 34 [2020-10-15 20:07:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:45,232 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 479 transitions. [2020-10-15 20:07:45,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:07:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 479 transitions. [2020-10-15 20:07:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 20:07:45,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:45,236 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:45,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:45,450 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:45,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:45,451 INFO L82 PathProgramCache]: Analyzing trace with hash -303137003, now seen corresponding path program 3 times [2020-10-15 20:07:45,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:45,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889381723] [2020-10-15 20:07:45,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:45,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889381723] [2020-10-15 20:07:45,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457056449] [2020-10-15 20:07:45,529 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 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 [2020-10-15 20:07:46,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 20:07:46,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:46,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 20:07:46,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:46,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:46,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-15 20:07:46,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300808051] [2020-10-15 20:07:46,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 20:07:46,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:46,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 20:07:46,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:07:46,149 INFO L87 Difference]: Start difference. First operand 244 states and 479 transitions. Second operand 6 states. [2020-10-15 20:07:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:46,204 INFO L93 Difference]: Finished difference Result 320 states and 620 transitions. [2020-10-15 20:07:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 20:07:46,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-15 20:07:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:46,211 INFO L225 Difference]: With dead ends: 320 [2020-10-15 20:07:46,211 INFO L226 Difference]: Without dead ends: 320 [2020-10-15 20:07:46,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:07:46,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-15 20:07:46,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 284. [2020-10-15 20:07:46,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-15 20:07:46,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 553 transitions. [2020-10-15 20:07:46,223 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 553 transitions. Word has length 41 [2020-10-15 20:07:46,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:46,223 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 553 transitions. [2020-10-15 20:07:46,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 20:07:46,223 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 553 transitions. [2020-10-15 20:07:46,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-15 20:07:46,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:46,225 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:46,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:46,439 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1439404639, now seen corresponding path program 4 times [2020-10-15 20:07:46,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:46,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295261253] [2020-10-15 20:07:46,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:46,575 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:46,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295261253] [2020-10-15 20:07:46,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272119988] [2020-10-15 20:07:46,577 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 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 [2020-10-15 20:07:46,738 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 20:07:46,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:46,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 20:07:46,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:46,759 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:46,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:46,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-10-15 20:07:46,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037428714] [2020-10-15 20:07:46,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 20:07:46,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:46,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 20:07:46,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-15 20:07:46,762 INFO L87 Difference]: Start difference. First operand 284 states and 553 transitions. Second operand 7 states. [2020-10-15 20:07:46,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:46,806 INFO L93 Difference]: Finished difference Result 360 states and 694 transitions. [2020-10-15 20:07:46,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 20:07:46,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-10-15 20:07:46,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:46,809 INFO L225 Difference]: With dead ends: 360 [2020-10-15 20:07:46,810 INFO L226 Difference]: Without dead ends: 360 [2020-10-15 20:07:46,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-15 20:07:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-15 20:07:46,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 324. [2020-10-15 20:07:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-15 20:07:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 627 transitions. [2020-10-15 20:07:46,820 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 627 transitions. Word has length 48 [2020-10-15 20:07:46,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:46,821 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 627 transitions. [2020-10-15 20:07:46,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 20:07:46,821 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 627 transitions. [2020-10-15 20:07:46,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 20:07:46,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:46,822 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:47,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:47,036 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:47,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:47,036 INFO L82 PathProgramCache]: Analyzing trace with hash -2001070123, now seen corresponding path program 5 times [2020-10-15 20:07:47,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:47,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295092711] [2020-10-15 20:07:47,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:47,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295092711] [2020-10-15 20:07:47,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522436139] [2020-10-15 20:07:47,129 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 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 [2020-10-15 20:07:47,313 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-15 20:07:47,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:47,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 40 conjunts are in the unsatisfiable core [2020-10-15 20:07:47,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:47,376 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-15 20:07:47,377 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:47,384 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,384 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-15 20:07:47,431 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:47,431 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 65 [2020-10-15 20:07:47,432 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,457 INFO L625 ElimStorePlain]: treesize reduction 25, result has 59.7 percent of original size [2020-10-15 20:07:47,458 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:07:47,458 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:24 [2020-10-15 20:07:47,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:47,551 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:47,551 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-10-15 20:07:47,553 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:47,555 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,560 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:07:47,576 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:47,576 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:07:47,577 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,655 INFO L625 ElimStorePlain]: treesize reduction 50, result has 61.5 percent of original size [2020-10-15 20:07:47,664 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:07:47,664 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:84, output treesize:36 [2020-10-15 20:07:47,703 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:07:47,719 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:07:47,720 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,727 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:07:47,728 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,766 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:47,769 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:07:47,770 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:66, output treesize:36 [2020-10-15 20:07:47,844 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 23 treesize of output 13 [2020-10-15 20:07:47,846 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,853 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:47,854 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,854 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:22 [2020-10-15 20:07:47,966 INFO L350 Elim1Store]: treesize reduction 77, result has 10.5 percent of original size [2020-10-15 20:07:47,966 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 47 [2020-10-15 20:07:47,967 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:47,975 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:47,976 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:9 [2020-10-15 20:07:48,011 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:48,011 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:07:48,012 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:48,027 INFO L625 ElimStorePlain]: treesize reduction 30, result has 44.4 percent of original size [2020-10-15 20:07:48,029 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:48,030 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-10-15 20:07:48,058 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-15 20:07:48,059 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:07:48,059 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:48,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:48,065 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:48,066 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-10-15 20:07:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 63 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 20:07:48,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:48,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2020-10-15 20:07:48,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114781122] [2020-10-15 20:07:48,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 20:07:48,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:48,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 20:07:48,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-10-15 20:07:48,077 INFO L87 Difference]: Start difference. First operand 324 states and 627 transitions. Second operand 17 states. [2020-10-15 20:07:50,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:50,534 INFO L93 Difference]: Finished difference Result 928 states and 1761 transitions. [2020-10-15 20:07:50,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-15 20:07:50,535 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-10-15 20:07:50,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:50,543 INFO L225 Difference]: With dead ends: 928 [2020-10-15 20:07:50,543 INFO L226 Difference]: Without dead ends: 928 [2020-10-15 20:07:50,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=718, Invalid=2362, Unknown=0, NotChecked=0, Total=3080 [2020-10-15 20:07:50,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-10-15 20:07:50,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 592. [2020-10-15 20:07:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-10-15 20:07:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1128 transitions. [2020-10-15 20:07:50,566 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1128 transitions. Word has length 55 [2020-10-15 20:07:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:50,566 INFO L481 AbstractCegarLoop]: Abstraction has 592 states and 1128 transitions. [2020-10-15 20:07:50,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 20:07:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1128 transitions. [2020-10-15 20:07:50,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 20:07:50,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:50,569 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:50,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:50,784 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:50,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:50,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1766070037, now seen corresponding path program 1 times [2020-10-15 20:07:50,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:50,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234346647] [2020-10-15 20:07:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:50,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234346647] [2020-10-15 20:07:50,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638247002] [2020-10-15 20:07:50,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-15 20:07:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:51,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 20:07:51,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:51,148 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:51,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:51,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2020-10-15 20:07:51,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431296963] [2020-10-15 20:07:51,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 20:07:51,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:51,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 20:07:51,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-10-15 20:07:51,151 INFO L87 Difference]: Start difference. First operand 592 states and 1128 transitions. Second operand 9 states. [2020-10-15 20:07:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:51,219 INFO L93 Difference]: Finished difference Result 756 states and 1431 transitions. [2020-10-15 20:07:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 20:07:51,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-15 20:07:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:51,224 INFO L225 Difference]: With dead ends: 756 [2020-10-15 20:07:51,224 INFO L226 Difference]: Without dead ends: 756 [2020-10-15 20:07:51,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-10-15 20:07:51,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-15 20:07:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 680. [2020-10-15 20:07:51,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2020-10-15 20:07:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1290 transitions. [2020-10-15 20:07:51,245 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1290 transitions. Word has length 63 [2020-10-15 20:07:51,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:51,246 INFO L481 AbstractCegarLoop]: Abstraction has 680 states and 1290 transitions. [2020-10-15 20:07:51,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 20:07:51,246 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1290 transitions. [2020-10-15 20:07:51,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 20:07:51,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:51,248 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:51,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:51,461 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:51,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:51,462 INFO L82 PathProgramCache]: Analyzing trace with hash -89386411, now seen corresponding path program 2 times [2020-10-15 20:07:51,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:51,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241772443] [2020-10-15 20:07:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:51,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241772443] [2020-10-15 20:07:51,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310800573] [2020-10-15 20:07:51,622 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 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 [2020-10-15 20:07:51,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 20:07:51,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:51,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-15 20:07:51,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:51,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:51,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2020-10-15 20:07:51,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930834957] [2020-10-15 20:07:51,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 20:07:51,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:51,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 20:07:51,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-10-15 20:07:51,806 INFO L87 Difference]: Start difference. First operand 680 states and 1290 transitions. Second operand 10 states. [2020-10-15 20:07:51,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:51,874 INFO L93 Difference]: Finished difference Result 844 states and 1593 transitions. [2020-10-15 20:07:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 20:07:51,875 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-15 20:07:51,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:51,879 INFO L225 Difference]: With dead ends: 844 [2020-10-15 20:07:51,880 INFO L226 Difference]: Without dead ends: 844 [2020-10-15 20:07:51,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-10-15 20:07:51,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-15 20:07:51,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 768. [2020-10-15 20:07:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-15 20:07:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1452 transitions. [2020-10-15 20:07:51,897 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1452 transitions. Word has length 71 [2020-10-15 20:07:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:51,898 INFO L481 AbstractCegarLoop]: Abstraction has 768 states and 1452 transitions. [2020-10-15 20:07:51,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 20:07:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1452 transitions. [2020-10-15 20:07:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 20:07:51,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:51,900 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:52,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:52,113 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:52,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:52,114 INFO L82 PathProgramCache]: Analyzing trace with hash 796776223, now seen corresponding path program 3 times [2020-10-15 20:07:52,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:52,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029511006] [2020-10-15 20:07:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:52,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029511006] [2020-10-15 20:07:52,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582286729] [2020-10-15 20:07:52,289 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 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 [2020-10-15 20:07:52,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 20:07:52,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:52,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 32 conjunts are in the unsatisfiable core [2020-10-15 20:07:52,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:52,841 INFO L384 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 92 treesize of output 88 [2020-10-15 20:07:52,844 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:52,876 INFO L625 ElimStorePlain]: treesize reduction 65, result has 20.7 percent of original size [2020-10-15 20:07:52,884 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:52,885 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:20, output treesize:4 [2020-10-15 20:07:52,922 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-15 20:07:52,922 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:52,926 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:52,927 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:52,927 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-15 20:07:52,954 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:07:52,955 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:52,960 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:52,963 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:52,964 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-15 20:07:52,999 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:07:53,018 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:53,018 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:07:53,019 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:53,046 INFO L625 ElimStorePlain]: treesize reduction 30, result has 50.0 percent of original size [2020-10-15 20:07:53,047 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:53,048 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:16 [2020-10-15 20:07:53,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:07:53,073 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:07:53,073 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:53,081 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:53,082 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:53,082 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-10-15 20:07:53,087 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 7 [2020-10-15 20:07:53,088 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:53,089 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:53,090 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:53,090 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:1 [2020-10-15 20:07:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 50 proven. 35 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-15 20:07:53,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:53,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 17 [2020-10-15 20:07:53,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443280400] [2020-10-15 20:07:53,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 20:07:53,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:53,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 20:07:53,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-15 20:07:53,102 INFO L87 Difference]: Start difference. First operand 768 states and 1452 transitions. Second operand 17 states. [2020-10-15 20:07:54,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:54,351 INFO L93 Difference]: Finished difference Result 948 states and 1754 transitions. [2020-10-15 20:07:54,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-15 20:07:54,352 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 78 [2020-10-15 20:07:54,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:54,357 INFO L225 Difference]: With dead ends: 948 [2020-10-15 20:07:54,357 INFO L226 Difference]: Without dead ends: 948 [2020-10-15 20:07:54,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=634, Invalid=1436, Unknown=0, NotChecked=0, Total=2070 [2020-10-15 20:07:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2020-10-15 20:07:54,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 648. [2020-10-15 20:07:54,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-15 20:07:54,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1214 transitions. [2020-10-15 20:07:54,374 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1214 transitions. Word has length 78 [2020-10-15 20:07:54,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:54,374 INFO L481 AbstractCegarLoop]: Abstraction has 648 states and 1214 transitions. [2020-10-15 20:07:54,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 20:07:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1214 transitions. [2020-10-15 20:07:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 20:07:54,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:54,377 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:54,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-15 20:07:54,592 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:54,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:54,592 INFO L82 PathProgramCache]: Analyzing trace with hash -118973483, now seen corresponding path program 4 times [2020-10-15 20:07:54,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:54,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615772271] [2020-10-15 20:07:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:54,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615772271] [2020-10-15 20:07:54,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453577195] [2020-10-15 20:07:54,733 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 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 [2020-10-15 20:07:58,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 20:07:58,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:58,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-15 20:07:58,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:58,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:07:58,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2020-10-15 20:07:58,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884026796] [2020-10-15 20:07:58,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 20:07:58,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:58,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 20:07:58,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-10-15 20:07:58,068 INFO L87 Difference]: Start difference. First operand 648 states and 1214 transitions. Second operand 12 states. [2020-10-15 20:07:58,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:58,142 INFO L93 Difference]: Finished difference Result 760 states and 1418 transitions. [2020-10-15 20:07:58,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 20:07:58,143 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2020-10-15 20:07:58,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:58,146 INFO L225 Difference]: With dead ends: 760 [2020-10-15 20:07:58,147 INFO L226 Difference]: Without dead ends: 760 [2020-10-15 20:07:58,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-10-15 20:07:58,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-15 20:07:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 708. [2020-10-15 20:07:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2020-10-15 20:07:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1323 transitions. [2020-10-15 20:07:58,162 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1323 transitions. Word has length 87 [2020-10-15 20:07:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:58,163 INFO L481 AbstractCegarLoop]: Abstraction has 708 states and 1323 transitions. [2020-10-15 20:07:58,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 20:07:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1323 transitions. [2020-10-15 20:07:58,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 20:07:58,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:58,165 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:58,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:07:58,381 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:58,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:58,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1791613077, now seen corresponding path program 5 times [2020-10-15 20:07:58,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:58,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857647079] [2020-10-15 20:07:58,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:58,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857647079] [2020-10-15 20:07:58,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590517108] [2020-10-15 20:07:58,541 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 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 [2020-10-15 20:07:59,271 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2020-10-15 20:07:59,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:07:59,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 84 conjunts are in the unsatisfiable core [2020-10-15 20:07:59,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:07:59,319 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 23 treesize of output 13 [2020-10-15 20:07:59,320 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,321 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,322 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,322 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:9 [2020-10-15 20:07:59,364 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,364 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-15 20:07:59,365 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,400 INFO L625 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-10-15 20:07:59,402 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:59,411 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:07:59,412 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:35 [2020-10-15 20:07:59,487 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:59,520 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,520 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-10-15 20:07:59,521 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:59,528 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,542 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:07:59,560 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,560 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:07:59,561 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,644 INFO L625 ElimStorePlain]: treesize reduction 50, result has 64.8 percent of original size [2020-10-15 20:07:59,647 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:07:59,647 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-15 20:07:59,690 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:59,701 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:07:59,701 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:07:59,714 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:07:59,715 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,743 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,744 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:07:59,745 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-15 20:07:59,819 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-10-15 20:07:59,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:59,827 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 11 [2020-10-15 20:07:59,828 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,843 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,848 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 31 treesize of output 15 [2020-10-15 20:07:59,848 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,859 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,859 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:07:59,859 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:35 [2020-10-15 20:07:59,897 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:07:59,936 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:07:59,936 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-15 20:07:59,937 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:07:59,977 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:07:59,977 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,040 INFO L625 ElimStorePlain]: treesize reduction 24, result has 77.4 percent of original size [2020-10-15 20:08:00,042 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:08:00,052 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-15 20:08:00,052 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:60 [2020-10-15 20:08:00,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:08:00,150 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:00,151 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:00,170 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,170 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2020-10-15 20:08:00,171 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,190 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,190 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 46 [2020-10-15 20:08:00,191 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-10-15 20:08:00,192 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:08:00,192 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-10-15 20:08:00,265 INFO L625 ElimStorePlain]: treesize reduction 53, result has 61.3 percent of original size [2020-10-15 20:08:00,267 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:08:00,267 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:90, output treesize:48 [2020-10-15 20:08:00,320 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:08:00,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:00,338 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:00,339 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,345 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:08:00,346 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,385 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:08:00,386 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-15 20:08:00,473 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 23 treesize of output 13 [2020-10-15 20:08:00,474 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,482 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,482 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,483 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-10-15 20:08:00,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:00,547 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:00,548 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,560 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,562 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,562 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-10-15 20:08:00,666 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:00,678 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,679 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:08:00,679 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,722 INFO L625 ElimStorePlain]: treesize reduction 30, result has 64.3 percent of original size [2020-10-15 20:08:00,723 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,724 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-10-15 20:08:00,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:00,792 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:00,792 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,808 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,809 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,810 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-10-15 20:08:00,881 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 18 [2020-10-15 20:08:00,881 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,894 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,894 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,895 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-10-15 20:08:00,967 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:00,968 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 75 [2020-10-15 20:08:00,968 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:08:00,970 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:00,997 INFO L625 ElimStorePlain]: treesize reduction 44, result has 49.4 percent of original size [2020-10-15 20:08:01,002 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:01,003 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:9 [2020-10-15 20:08:01,082 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:01,082 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:08:01,083 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:08:01,084 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:01,105 INFO L625 ElimStorePlain]: treesize reduction 35, result has 46.2 percent of original size [2020-10-15 20:08:01,107 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:01,107 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-10-15 20:08:01,146 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-15 20:08:01,146 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:01,147 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:01,151 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:01,153 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:01,153 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-10-15 20:08:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 229 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-15 20:08:01,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:08:01,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 22] total 33 [2020-10-15 20:08:01,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880316619] [2020-10-15 20:08:01,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-15 20:08:01,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:08:01,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-15 20:08:01,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=865, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 20:08:01,186 INFO L87 Difference]: Start difference. First operand 708 states and 1323 transitions. Second operand 33 states. [2020-10-15 20:08:08,767 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-15 20:08:12,237 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-15 20:08:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:08:16,721 INFO L93 Difference]: Finished difference Result 2722 states and 5016 transitions. [2020-10-15 20:08:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2020-10-15 20:08:16,722 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 95 [2020-10-15 20:08:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:08:16,733 INFO L225 Difference]: With dead ends: 2722 [2020-10-15 20:08:16,733 INFO L226 Difference]: Without dead ends: 2722 [2020-10-15 20:08:16,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 253 SyntacticMatches, 2 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19528 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=6650, Invalid=38082, Unknown=0, NotChecked=0, Total=44732 [2020-10-15 20:08:16,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2020-10-15 20:08:16,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1838. [2020-10-15 20:08:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-10-15 20:08:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 3358 transitions. [2020-10-15 20:08:16,791 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 3358 transitions. Word has length 95 [2020-10-15 20:08:16,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:08:16,791 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 3358 transitions. [2020-10-15 20:08:16,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-15 20:08:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 3358 transitions. [2020-10-15 20:08:16,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 20:08:16,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:08:16,796 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 7, 7, 7, 7, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:08:17,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:08:17,010 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:08:17,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:08:17,011 INFO L82 PathProgramCache]: Analyzing trace with hash 342552351, now seen corresponding path program 6 times [2020-10-15 20:08:17,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:08:17,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986354269] [2020-10-15 20:08:17,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:08:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:08:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:08:17,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986354269] [2020-10-15 20:08:17,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418932635] [2020-10-15 20:08:17,213 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 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 [2020-10-15 20:08:20,598 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-10-15 20:08:20,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:08:20,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 65 conjunts are in the unsatisfiable core [2020-10-15 20:08:20,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:08:20,628 INFO L384 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 47 treesize of output 45 [2020-10-15 20:08:20,629 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-15 20:08:20,652 INFO L625 ElimStorePlain]: treesize reduction 25, result has 40.5 percent of original size [2020-10-15 20:08:20,654 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,654 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:20, output treesize:4 [2020-10-15 20:08:20,710 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2020-10-15 20:08:20,711 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,715 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:20,715 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,715 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:14 [2020-10-15 20:08:20,749 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:20,750 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,757 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:20,758 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,758 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2020-10-15 20:08:20,794 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:20,813 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:20,814 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:08:20,814 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,845 INFO L625 ElimStorePlain]: treesize reduction 30, result has 53.1 percent of original size [2020-10-15 20:08:20,847 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,847 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:20 [2020-10-15 20:08:20,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:20,881 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:20,881 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,892 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:20,893 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,894 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-10-15 20:08:20,939 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2020-10-15 20:08:20,940 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,946 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:20,947 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,947 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:14 [2020-10-15 20:08:20,980 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:20,980 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:20,990 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:20,991 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-15 20:08:21,043 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:21,059 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:21,060 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:08:21,061 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:08:21,062 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:21,097 INFO L625 ElimStorePlain]: treesize reduction 35, result has 50.7 percent of original size [2020-10-15 20:08:21,099 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:21,099 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:16 [2020-10-15 20:08:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:21,133 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:21,134 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:21,143 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:21,145 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:21,146 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-10-15 20:08:21,149 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 7 [2020-10-15 20:08:21,155 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:21,157 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:21,157 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:21,157 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:1 [2020-10-15 20:08:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 197 proven. 15 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-15 20:08:21,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:08:21,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25 [2020-10-15 20:08:21,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985695544] [2020-10-15 20:08:21,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-15 20:08:21,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:08:21,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-15 20:08:21,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2020-10-15 20:08:21,175 INFO L87 Difference]: Start difference. First operand 1838 states and 3358 transitions. Second operand 25 states. [2020-10-15 20:08:25,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:08:25,259 INFO L93 Difference]: Finished difference Result 1949 states and 3507 transitions. [2020-10-15 20:08:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2020-10-15 20:08:25,260 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 104 [2020-10-15 20:08:25,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:08:25,270 INFO L225 Difference]: With dead ends: 1949 [2020-10-15 20:08:25,271 INFO L226 Difference]: Without dead ends: 1949 [2020-10-15 20:08:25,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4446 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2730, Invalid=9042, Unknown=0, NotChecked=0, Total=11772 [2020-10-15 20:08:25,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2020-10-15 20:08:25,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1161. [2020-10-15 20:08:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2020-10-15 20:08:25,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 2122 transitions. [2020-10-15 20:08:25,308 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 2122 transitions. Word has length 104 [2020-10-15 20:08:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:08:25,308 INFO L481 AbstractCegarLoop]: Abstraction has 1161 states and 2122 transitions. [2020-10-15 20:08:25,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-15 20:08:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 2122 transitions. [2020-10-15 20:08:25,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-15 20:08:25,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:08:25,314 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 8, 8, 8, 8, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:08:25,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-15 20:08:25,528 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:08:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:08:25,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1599378849, now seen corresponding path program 7 times [2020-10-15 20:08:25,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:08:25,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123423221] [2020-10-15 20:08:25,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:08:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:08:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:08:25,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123423221] [2020-10-15 20:08:25,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951208758] [2020-10-15 20:08:25,781 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 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 [2020-10-15 20:08:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:08:25,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-15 20:08:25,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:08:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:08:25,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:08:25,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2020-10-15 20:08:25,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958554406] [2020-10-15 20:08:25,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 20:08:25,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:08:25,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 20:08:25,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2020-10-15 20:08:25,961 INFO L87 Difference]: Start difference. First operand 1161 states and 2122 transitions. Second operand 15 states. [2020-10-15 20:08:26,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:08:26,079 INFO L93 Difference]: Finished difference Result 1333 states and 2431 transitions. [2020-10-15 20:08:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 20:08:26,082 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 112 [2020-10-15 20:08:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:08:26,087 INFO L225 Difference]: With dead ends: 1333 [2020-10-15 20:08:26,088 INFO L226 Difference]: Without dead ends: 1333 [2020-10-15 20:08:26,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2020-10-15 20:08:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2020-10-15 20:08:26,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1253. [2020-10-15 20:08:26,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-10-15 20:08:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2287 transitions. [2020-10-15 20:08:26,109 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2287 transitions. Word has length 112 [2020-10-15 20:08:26,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:08:26,109 INFO L481 AbstractCegarLoop]: Abstraction has 1253 states and 2287 transitions. [2020-10-15 20:08:26,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 20:08:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2287 transitions. [2020-10-15 20:08:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-15 20:08:26,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:08:26,113 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:08:26,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-15 20:08:26,328 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:08:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:08:26,328 INFO L82 PathProgramCache]: Analyzing trace with hash 2027519917, now seen corresponding path program 8 times [2020-10-15 20:08:26,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:08:26,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837006093] [2020-10-15 20:08:26,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:08:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:08:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:08:26,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837006093] [2020-10-15 20:08:26,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856366076] [2020-10-15 20:08:26,569 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 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 [2020-10-15 20:08:26,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 20:08:26,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:08:26,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-15 20:08:26,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:08:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:08:26,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:08:26,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2020-10-15 20:08:26,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030558714] [2020-10-15 20:08:26,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 20:08:26,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:08:26,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 20:08:26,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2020-10-15 20:08:26,978 INFO L87 Difference]: Start difference. First operand 1253 states and 2287 transitions. Second operand 16 states. [2020-10-15 20:08:27,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:08:27,165 INFO L93 Difference]: Finished difference Result 1425 states and 2596 transitions. [2020-10-15 20:08:27,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 20:08:27,166 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 119 [2020-10-15 20:08:27,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:08:27,174 INFO L225 Difference]: With dead ends: 1425 [2020-10-15 20:08:27,174 INFO L226 Difference]: Without dead ends: 1425 [2020-10-15 20:08:27,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2020-10-15 20:08:27,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2020-10-15 20:08:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1345. [2020-10-15 20:08:27,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2020-10-15 20:08:27,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2452 transitions. [2020-10-15 20:08:27,211 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2452 transitions. Word has length 119 [2020-10-15 20:08:27,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:08:27,212 INFO L481 AbstractCegarLoop]: Abstraction has 1345 states and 2452 transitions. [2020-10-15 20:08:27,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 20:08:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2452 transitions. [2020-10-15 20:08:27,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-15 20:08:27,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:08:27,219 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 9, 9, 9, 9, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:08:27,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-15 20:08:27,433 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:08:27,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:08:27,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1964403435, now seen corresponding path program 9 times [2020-10-15 20:08:27,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:08:27,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844043853] [2020-10-15 20:08:27,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:08:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:08:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 0 proven. 597 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:08:27,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844043853] [2020-10-15 20:08:27,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186389963] [2020-10-15 20:08:27,725 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 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 [2020-10-15 20:08:29,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-10-15 20:08:29,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:08:29,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 84 conjunts are in the unsatisfiable core [2020-10-15 20:08:29,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:08:29,147 INFO L384 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 47 treesize of output 45 [2020-10-15 20:08:29,148 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-15 20:08:29,172 INFO L625 ElimStorePlain]: treesize reduction 25, result has 40.5 percent of original size [2020-10-15 20:08:29,174 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,175 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:20, output treesize:4 [2020-10-15 20:08:29,211 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-15 20:08:29,211 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,217 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,217 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,218 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-15 20:08:29,246 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:29,247 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,253 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,255 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,255 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2020-10-15 20:08:29,297 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:29,313 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,314 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:08:29,315 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,349 INFO L625 ElimStorePlain]: treesize reduction 30, result has 53.1 percent of original size [2020-10-15 20:08:29,351 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,351 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:20 [2020-10-15 20:08:29,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:29,393 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:29,393 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,403 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,404 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,404 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-10-15 20:08:29,469 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2020-10-15 20:08:29,470 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,475 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,475 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,475 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:16 [2020-10-15 20:08:29,510 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:29,511 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,517 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,518 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,518 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2020-10-15 20:08:29,578 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:29,593 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,593 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2020-10-15 20:08:29,594 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,623 INFO L625 ElimStorePlain]: treesize reduction 26, result has 52.7 percent of original size [2020-10-15 20:08:29,624 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,625 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:20 [2020-10-15 20:08:29,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:29,668 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:29,669 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,681 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,683 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,683 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-10-15 20:08:29,751 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2020-10-15 20:08:29,752 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,757 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,787 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:14 [2020-10-15 20:08:29,821 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:29,822 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,829 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,831 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,831 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-15 20:08:29,896 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:08:29,912 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,912 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2020-10-15 20:08:29,913 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,940 INFO L625 ElimStorePlain]: treesize reduction 26, result has 49.0 percent of original size [2020-10-15 20:08:29,941 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,941 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:16 [2020-10-15 20:08:29,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:08:29,982 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:08:29,983 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,992 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:29,993 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:29,993 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-10-15 20:08:29,997 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 7 [2020-10-15 20:08:29,998 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:08:30,000 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:08:30,000 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:08:30,000 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:1 [2020-10-15 20:08:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 220 proven. 73 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-15 20:08:30,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:08:30,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 31 [2020-10-15 20:08:30,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381716135] [2020-10-15 20:08:30,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-15 20:08:30,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:08:30,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-15 20:08:30,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=736, Unknown=0, NotChecked=0, Total=930 [2020-10-15 20:08:30,038 INFO L87 Difference]: Start difference. First operand 1345 states and 2452 transitions. Second operand 31 states. [2020-10-15 20:08:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:08:36,892 INFO L93 Difference]: Finished difference Result 2480 states and 4491 transitions. [2020-10-15 20:08:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2020-10-15 20:08:36,893 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 127 [2020-10-15 20:08:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:08:36,903 INFO L225 Difference]: With dead ends: 2480 [2020-10-15 20:08:36,903 INFO L226 Difference]: Without dead ends: 2480 [2020-10-15 20:08:36,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 111 SyntacticMatches, 3 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9730 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=4011, Invalid=20481, Unknown=0, NotChecked=0, Total=24492 [2020-10-15 20:08:36,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2020-10-15 20:08:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1829. [2020-10-15 20:08:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2020-10-15 20:08:36,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 3305 transitions. [2020-10-15 20:08:36,940 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 3305 transitions. Word has length 127 [2020-10-15 20:08:36,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:08:36,941 INFO L481 AbstractCegarLoop]: Abstraction has 1829 states and 3305 transitions. [2020-10-15 20:08:36,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-15 20:08:36,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 3305 transitions. [2020-10-15 20:08:36,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-15 20:08:36,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:08:36,946 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 11, 11, 11, 11, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:08:37,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:08:37,160 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:08:37,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:08:37,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1655608223, now seen corresponding path program 10 times [2020-10-15 20:08:37,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:08:37,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354795797] [2020-10-15 20:08:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:08:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:08:37,619 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 717 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:08:37,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354795797] [2020-10-15 20:08:37,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245509483] [2020-10-15 20:08:37,620 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 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 [2020-10-15 20:09:25,183 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 20:09:25,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:09:26,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-15 20:09:26,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:09:26,273 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 717 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:09:26,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:09:26,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2020-10-15 20:09:26,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161974742] [2020-10-15 20:09:26,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 20:09:26,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:09:26,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 20:09:26,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2020-10-15 20:09:26,275 INFO L87 Difference]: Start difference. First operand 1829 states and 3305 transitions. Second operand 18 states. [2020-10-15 20:09:26,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:09:26,431 INFO L93 Difference]: Finished difference Result 2061 states and 3719 transitions. [2020-10-15 20:09:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 20:09:26,432 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 136 [2020-10-15 20:09:26,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:09:26,444 INFO L225 Difference]: With dead ends: 2061 [2020-10-15 20:09:26,444 INFO L226 Difference]: Without dead ends: 2061 [2020-10-15 20:09:26,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2020-10-15 20:09:26,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2020-10-15 20:09:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 1953. [2020-10-15 20:09:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1953 states. [2020-10-15 20:09:26,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 3526 transitions. [2020-10-15 20:09:26,491 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 3526 transitions. Word has length 136 [2020-10-15 20:09:26,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:09:26,492 INFO L481 AbstractCegarLoop]: Abstraction has 1953 states and 3526 transitions. [2020-10-15 20:09:26,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 20:09:26,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 3526 transitions. [2020-10-15 20:09:26,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-15 20:09:26,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:09:26,500 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 11, 11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:09:26,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:09:26,713 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:09:26,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:09:26,714 INFO L82 PathProgramCache]: Analyzing trace with hash -227267987, now seen corresponding path program 11 times [2020-10-15 20:09:26,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:09:26,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322198811] [2020-10-15 20:09:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:09:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:09:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:09:27,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322198811] [2020-10-15 20:09:27,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231803641] [2020-10-15 20:09:27,051 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 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 [2020-10-15 20:09:29,296 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2020-10-15 20:09:29,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 20:09:29,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 148 conjunts are in the unsatisfiable core [2020-10-15 20:09:29,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:09:29,340 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-15 20:09:29,340 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:29,342 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:29,343 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:29,343 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-15 20:09:29,386 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:29,386 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-15 20:09:29,387 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:29,423 INFO L625 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-10-15 20:09:29,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:29,425 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:29,426 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:35 [2020-10-15 20:09:29,536 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:29,584 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:29,585 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 46 [2020-10-15 20:09:29,586 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-10-15 20:09:29,586 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:29,587 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-15 20:09:29,602 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:29,624 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:29,624 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2020-10-15 20:09:29,625 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:29,739 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-10-15 20:09:29,739 INFO L625 ElimStorePlain]: treesize reduction 53, result has 61.3 percent of original size [2020-10-15 20:09:29,741 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:29,742 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:90, output treesize:48 [2020-10-15 20:09:29,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:29,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:29,877 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2020-10-15 20:09:29,881 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:29,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:29,894 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2020-10-15 20:09:29,896 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:29,920 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:29,921 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:29,921 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:90, output treesize:48 [2020-10-15 20:09:30,078 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 5, 1] term [2020-10-15 20:09:30,078 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:30,103 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 35 treesize of output 19 [2020-10-15 20:09:30,105 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,153 INFO L625 ElimStorePlain]: treesize reduction 10, result has 87.7 percent of original size [2020-10-15 20:09:30,159 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 18 [2020-10-15 20:09:30,160 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,188 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:30,189 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:30,190 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:104, output treesize:35 [2020-10-15 20:09:30,231 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:30,244 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:09:30,244 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,280 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:30,281 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-15 20:09:30,282 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:30,283 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,392 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-10-15 20:09:30,393 INFO L625 ElimStorePlain]: treesize reduction 24, result has 77.4 percent of original size [2020-10-15 20:09:30,395 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:30,398 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-15 20:09:30,399 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:60 [2020-10-15 20:09:30,537 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:30,581 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:30,581 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-10-15 20:09:30,582 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:30,586 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,594 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:30,624 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:30,625 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:09:30,626 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:30,627 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,751 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-10-15 20:09:30,752 INFO L625 ElimStorePlain]: treesize reduction 55, result has 64.1 percent of original size [2020-10-15 20:09:30,754 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:30,754 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-15 20:09:30,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:30,823 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:09:30,824 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:30,836 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:30,836 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,871 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:30,872 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:30,873 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-15 20:09:30,950 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 1] term [2020-10-15 20:09:30,950 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:30,967 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 25 treesize of output 15 [2020-10-15 20:09:30,969 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:30,990 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:30,995 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 18 [2020-10-15 20:09:30,996 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,016 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:31,017 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:31,017 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:84, output treesize:35 [2020-10-15 20:09:31,064 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:31,084 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:09:31,084 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,120 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:31,121 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-15 20:09:31,122 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:31,123 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,199 INFO L625 ElimStorePlain]: treesize reduction 24, result has 77.4 percent of original size [2020-10-15 20:09:31,200 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:31,202 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-15 20:09:31,202 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:60 [2020-10-15 20:09:31,316 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:31,329 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:31,331 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:31,349 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:31,349 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:09:31,350 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:31,352 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,374 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:31,375 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-10-15 20:09:31,376 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:31,377 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,478 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-15 20:09:31,479 INFO L625 ElimStorePlain]: treesize reduction 55, result has 64.1 percent of original size [2020-10-15 20:09:31,482 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:31,482 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-15 20:09:31,545 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:31,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:31,565 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:31,565 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,571 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:09:31,571 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,608 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:31,609 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:31,609 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-15 20:09:31,810 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 5, 1] term [2020-10-15 20:09:31,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:31,827 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 44 treesize of output 22 [2020-10-15 20:09:31,829 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,884 INFO L625 ElimStorePlain]: treesize reduction 3, result has 96.2 percent of original size [2020-10-15 20:09:31,890 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 35 treesize of output 19 [2020-10-15 20:09:31,891 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:31,909 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:31,911 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:31,911 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:104, output treesize:35 [2020-10-15 20:09:31,960 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:31,977 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:09:31,978 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,008 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:32,009 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-15 20:09:32,010 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:32,011 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,097 INFO L625 ElimStorePlain]: treesize reduction 24, result has 77.4 percent of original size [2020-10-15 20:09:32,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:32,106 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-15 20:09:32,107 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:60 [2020-10-15 20:09:32,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:32,257 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:32,257 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-10-15 20:09:32,258 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:32,259 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,264 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:32,287 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:32,287 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:09:32,288 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:32,289 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,440 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-15 20:09:32,441 INFO L625 ElimStorePlain]: treesize reduction 55, result has 64.1 percent of original size [2020-10-15 20:09:32,444 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:32,445 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-15 20:09:32,525 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 20:09:32,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:32,546 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:32,547 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,555 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-15 20:09:32,555 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,595 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:32,597 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-15 20:09:32,597 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-15 20:09:32,728 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 23 treesize of output 13 [2020-10-15 20:09:32,729 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,746 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:32,747 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,747 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-10-15 20:09:32,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:32,806 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:32,806 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,823 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:32,824 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:32,825 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-10-15 20:09:32,950 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:32,968 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:32,968 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:09:32,969 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,014 INFO L625 ElimStorePlain]: treesize reduction 30, result has 64.3 percent of original size [2020-10-15 20:09:33,020 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,020 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-10-15 20:09:33,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:33,105 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:33,105 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,121 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:33,122 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,122 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-10-15 20:09:33,205 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 18 [2020-10-15 20:09:33,206 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:33,226 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,226 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-10-15 20:09:33,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:33,286 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:33,287 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,308 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:33,309 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,309 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-10-15 20:09:33,457 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:33,471 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:33,472 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:09:33,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:33,473 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,540 INFO L625 ElimStorePlain]: treesize reduction 35, result has 63.2 percent of original size [2020-10-15 20:09:33,541 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,541 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-10-15 20:09:33,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:33,627 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:33,627 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,644 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:33,645 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,646 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-10-15 20:09:33,744 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 18 [2020-10-15 20:09:33,745 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,758 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:33,759 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,759 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-10-15 20:09:33,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:33,833 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:33,833 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,849 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:33,850 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:33,851 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-10-15 20:09:34,005 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-15 20:09:34,021 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:34,021 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:09:34,022 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:34,023 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,074 INFO L625 ElimStorePlain]: treesize reduction 35, result has 63.2 percent of original size [2020-10-15 20:09:34,076 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,076 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-10-15 20:09:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:34,177 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:34,177 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:34,199 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,200 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-10-15 20:09:34,306 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 18 [2020-10-15 20:09:34,307 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,319 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:34,320 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,320 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-10-15 20:09:34,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 20:09:34,402 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2020-10-15 20:09:34,402 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,418 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:34,419 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,419 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:40, output treesize:9 [2020-10-15 20:09:34,530 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:34,531 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 57 [2020-10-15 20:09:34,532 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 20:09:34,533 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,557 INFO L625 ElimStorePlain]: treesize reduction 35, result has 46.2 percent of original size [2020-10-15 20:09:34,558 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,558 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-10-15 20:09:34,619 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-15 20:09:34,620 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-10-15 20:09:34,621 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,625 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 20:09:34,626 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 20:09:34,626 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-10-15 20:09:34,738 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 588 proven. 107 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-10-15 20:09:34,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:09:34,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 42] total 59 [2020-10-15 20:09:34,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474018299] [2020-10-15 20:09:34,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-10-15 20:09:34,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:09:34,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-10-15 20:09:34,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=590, Invalid=2832, Unknown=0, NotChecked=0, Total=3422 [2020-10-15 20:09:34,740 INFO L87 Difference]: Start difference. First operand 1953 states and 3526 transitions. Second operand 59 states. [2020-10-15 20:09:37,278 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-15 20:09:38,291 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-15 20:09:39,803 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-10-15 20:09:40,210 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-15 20:09:42,149 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:09:42,676 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:09:45,095 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:09:45,805 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:09:48,791 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:09:49,425 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:09:50,682 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:09:54,031 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:09:55,511 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:09:58,635 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:09:59,443 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:00,628 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:02,843 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:03,845 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:04,681 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:06,850 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:09,435 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:10,369 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:13,022 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:14,857 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-15 20:10:15,354 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:16,255 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:17,981 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:21,354 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-15 20:10:21,735 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:22,706 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:24,730 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:28,175 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-10-15 20:10:29,278 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:30,488 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:32,075 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:36,674 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:38,048 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:40,498 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:42,392 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-15 20:10:44,710 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:46,055 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-15 20:10:48,574 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-15 20:10:49,328 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2020-10-15 20:10:50,710 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-10-15 20:10:51,015 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 20:10:52,633 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-10-15 20:10:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:10:54,567 INFO L93 Difference]: Finished difference Result 8387 states and 14946 transitions. [2020-10-15 20:10:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 571 states. [2020-10-15 20:10:54,568 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 143 [2020-10-15 20:10:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:10:54,595 INFO L225 Difference]: With dead ends: 8387 [2020-10-15 20:10:54,596 INFO L226 Difference]: Without dead ends: 8387 [2020-10-15 20:10:54,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1184 GetRequests, 578 SyntacticMatches, 3 SemanticMatches, 603 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179211 ImplicationChecksByTransitivity, 69.5s TimeCoverageRelationStatistics Valid=46076, Invalid=319344, Unknown=0, NotChecked=0, Total=365420 [2020-10-15 20:10:54,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8387 states. [2020-10-15 20:10:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8387 to 5881. [2020-10-15 20:10:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5881 states. [2020-10-15 20:10:54,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5881 states to 5881 states and 10481 transitions. [2020-10-15 20:10:54,743 INFO L78 Accepts]: Start accepts. Automaton has 5881 states and 10481 transitions. Word has length 143 [2020-10-15 20:10:54,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:10:54,744 INFO L481 AbstractCegarLoop]: Abstraction has 5881 states and 10481 transitions. [2020-10-15 20:10:54,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-10-15 20:10:54,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5881 states and 10481 transitions. [2020-10-15 20:10:54,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 20:10:54,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:10:54,755 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 13, 13, 13, 13, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:10:54,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:10:54,969 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:10:54,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:10:54,969 INFO L82 PathProgramCache]: Analyzing trace with hash 475333023, now seen corresponding path program 12 times [2020-10-15 20:10:54,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:10:54,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757208790] [2020-10-15 20:10:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:10:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:10:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 0 proven. 943 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:10:55,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757208790] [2020-10-15 20:10:55,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561192018] [2020-10-15 20:10:55,467 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 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 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown