/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/queue_ok_longer.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:41:51,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:41:51,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:41:51,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:41:51,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:41:51,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:41:51,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:41:51,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:41:51,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:41:51,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:41:51,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:41:51,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:41:51,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:41:51,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:41:51,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:41:51,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:41:51,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:41:51,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:41:51,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:41:51,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:41:51,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:41:51,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:41:51,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:41:51,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:41:51,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:41:51,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:41:51,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:41:51,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:41:51,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:41:51,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:41:51,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:41:51,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:41:51,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:41:51,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:41:51,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:41:51,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:41:51,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:41:51,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:41:51,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:41:51,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:41:51,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:41:51,929 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 [2020-04-17 18:41:51,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:41:51,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:41:51,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:41:51,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:41:51,955 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:41:51,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:41:51,956 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:41:51,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:41:51,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:41:51,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:41:51,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:41:51,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:41:51,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:41:51,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:41:51,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:41:51,959 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:41:51,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:41:51,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:41:51,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:41:51,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:41:51,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:41:51,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:41:51,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:41:51,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:41:51,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:41:51,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:41:51,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:41:51,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:41:51,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:41:52,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:41:52,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:41:52,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:41:52,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:41:52,299 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:41:52,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longer.i [2020-04-17 18:41:52,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75edd5182/e5f35d48968a464f963a0eae434b7c8e/FLAG99cd8f7fb [2020-04-17 18:41:52,918 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:41:52,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i [2020-04-17 18:41:52,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75edd5182/e5f35d48968a464f963a0eae434b7c8e/FLAG99cd8f7fb [2020-04-17 18:41:53,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75edd5182/e5f35d48968a464f963a0eae434b7c8e [2020-04-17 18:41:53,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:41:53,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:41:53,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:41:53,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:41:53,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:41:53,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:41:53" (1/1) ... [2020-04-17 18:41:53,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710ba30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:53, skipping insertion in model container [2020-04-17 18:41:53,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:41:53" (1/1) ... [2020-04-17 18:41:53,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:41:53,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:41:53,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:41:53,955 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:41:54,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:41:54,206 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:41:54,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54 WrapperNode [2020-04-17 18:41:54,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:41:54,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:41:54,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:41:54,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:41:54,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:41:54,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:41:54,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:41:54,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:41:54,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... [2020-04-17 18:41:54,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:41:54,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:41:54,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:41:54,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:41:54,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:41:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-17 18:41:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-17 18:41:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-17 18:41:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-17 18:41:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:41:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:41:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 18:41:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:41:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-17 18:41:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-17 18:41:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:41:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:41:54,543 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:41:55,428 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:41:55,428 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-04-17 18:41:55,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:41:55 BoogieIcfgContainer [2020-04-17 18:41:55,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:41:55,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:41:55,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:41:55,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:41:55,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:41:53" (1/3) ... [2020-04-17 18:41:55,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe7cde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:41:55, skipping insertion in model container [2020-04-17 18:41:55,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:41:54" (2/3) ... [2020-04-17 18:41:55,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe7cde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:41:55, skipping insertion in model container [2020-04-17 18:41:55,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:41:55" (3/3) ... [2020-04-17 18:41:55,440 INFO L109 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2020-04-17 18:41:55,451 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:41:55,451 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:41:55,459 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-17 18:41:55,460 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:41:55,514 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,514 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,514 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,514 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,515 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,515 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,515 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,515 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,516 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,516 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,516 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,516 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,517 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,517 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,517 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,517 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,517 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,518 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,518 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,518 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,518 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,518 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,518 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,519 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,519 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,519 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,519 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,519 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,519 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,520 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,520 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,520 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,520 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,520 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,520 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,521 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,521 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,521 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,521 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,521 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,522 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,522 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,522 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,522 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,522 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,523 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,523 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,523 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,523 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,523 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,523 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,524 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,524 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,524 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,524 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,524 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,525 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,525 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,525 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,525 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,525 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,526 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,526 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,526 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,526 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,526 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,526 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,527 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,527 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,527 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,527 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,527 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,528 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,528 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,528 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,528 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,528 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,529 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,529 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,529 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,529 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,529 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,529 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,530 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,530 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,530 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,531 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,531 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,531 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,532 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,532 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,532 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,532 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,532 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,533 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,533 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,533 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,533 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,534 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,534 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,534 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,534 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,534 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,535 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,535 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,535 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,535 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,535 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,535 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,536 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,536 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,536 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,536 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,536 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,536 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,537 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,537 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,537 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,537 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,537 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,538 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,538 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,538 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,538 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,538 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,539 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,539 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,539 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,539 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,539 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,540 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,540 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,540 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,540 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,540 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,540 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,541 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,541 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,541 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,541 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,541 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,542 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,542 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,542 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,542 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,542 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,542 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,543 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,543 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,543 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,543 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,543 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,543 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,544 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,544 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,544 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,544 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,544 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,545 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,545 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,545 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,545 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,545 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,545 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,546 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,546 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,546 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,546 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,546 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,547 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,547 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,547 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,547 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,547 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,548 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,548 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,548 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,548 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,548 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,548 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,549 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,549 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,549 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,549 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,549 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,550 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,550 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,550 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,550 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,550 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,550 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,551 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,551 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,551 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,551 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,551 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,551 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,552 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,552 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,552 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,552 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,552 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,553 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,553 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,553 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,553 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,553 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,554 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,554 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,554 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,554 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,554 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,558 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,558 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,558 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,558 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,559 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,559 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,559 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,559 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,559 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,560 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,560 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,560 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,560 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,560 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,560 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,561 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,561 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,561 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,561 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,561 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,562 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,562 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,562 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,577 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,577 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,578 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,578 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,578 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,578 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,578 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,579 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,579 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,586 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,586 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,587 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,587 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,587 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,587 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,587 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,588 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,588 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,588 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,588 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,588 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,589 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,589 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,589 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,589 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,589 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,589 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,590 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,590 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,590 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,590 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:41:55,614 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 18:41:55,633 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:41:55,633 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:41:55,633 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:41:55,633 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:41:55,633 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:41:55,634 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:41:55,634 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:41:55,634 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:41:55,653 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 204 transitions, 430 flow [2020-04-17 18:41:55,655 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 196 places, 204 transitions, 430 flow [2020-04-17 18:41:55,742 INFO L129 PetriNetUnfolder]: 14/204 cut-off events. [2020-04-17 18:41:55,743 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 18:41:55,756 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. [2020-04-17 18:41:55,766 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 196 places, 204 transitions, 430 flow [2020-04-17 18:41:55,822 INFO L129 PetriNetUnfolder]: 14/204 cut-off events. [2020-04-17 18:41:55,822 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 18:41:55,825 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. [2020-04-17 18:41:55,832 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 9440 [2020-04-17 18:41:55,833 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:41:56,027 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-04-17 18:41:59,262 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-17 18:42:00,098 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-04-17 18:42:00,270 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-04-17 18:42:00,984 WARN L192 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 122 [2020-04-17 18:42:01,404 WARN L192 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-04-17 18:42:03,569 WARN L192 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2020-04-17 18:42:04,416 WARN L192 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-04-17 18:42:04,436 INFO L206 etLargeBlockEncoding]: Checked pairs total: 17748 [2020-04-17 18:42:04,436 INFO L214 etLargeBlockEncoding]: Total number of compositions: 178 [2020-04-17 18:42:04,439 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 55 transitions, 132 flow [2020-04-17 18:42:04,483 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 716 states. [2020-04-17 18:42:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states. [2020-04-17 18:42:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-04-17 18:42:04,491 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:04,492 INFO L425 BasicCegarLoop]: trace histogram [1] [2020-04-17 18:42:04,492 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:04,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:04,498 INFO L82 PathProgramCache]: Analyzing trace with hash 810, now seen corresponding path program 1 times [2020-04-17 18:42:04,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:04,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630967148] [2020-04-17 18:42:04,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:04,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630967148] [2020-04-17 18:42:04,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:42:04,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-04-17 18:42:04,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230842696] [2020-04-17 18:42:04,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 18:42:04,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:04,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 18:42:04,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 18:42:04,637 INFO L87 Difference]: Start difference. First operand 716 states. Second operand 2 states. [2020-04-17 18:42:04,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:04,683 INFO L93 Difference]: Finished difference Result 715 states and 1901 transitions. [2020-04-17 18:42:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 18:42:04,685 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-04-17 18:42:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:04,705 INFO L225 Difference]: With dead ends: 715 [2020-04-17 18:42:04,706 INFO L226 Difference]: Without dead ends: 524 [2020-04-17 18:42:04,707 INFO L678 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 [2020-04-17 18:42:04,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-04-17 18:42:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2020-04-17 18:42:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-04-17 18:42:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1400 transitions. [2020-04-17 18:42:04,790 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1400 transitions. Word has length 1 [2020-04-17 18:42:04,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:04,790 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 1400 transitions. [2020-04-17 18:42:04,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 18:42:04,791 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1400 transitions. [2020-04-17 18:42:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 18:42:04,795 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:04,795 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:04,795 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:04,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1385599744, now seen corresponding path program 1 times [2020-04-17 18:42:04,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:04,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253571] [2020-04-17 18:42:04,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:04,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253571] [2020-04-17 18:42:04,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:42:04,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:42:04,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720299218] [2020-04-17 18:42:04,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:42:04,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:04,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:42:04,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:42:04,956 INFO L87 Difference]: Start difference. First operand 524 states and 1400 transitions. Second operand 3 states. [2020-04-17 18:42:04,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:04,978 INFO L93 Difference]: Finished difference Result 236 states and 509 transitions. [2020-04-17 18:42:04,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:42:04,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-04-17 18:42:04,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:04,981 INFO L225 Difference]: With dead ends: 236 [2020-04-17 18:42:04,981 INFO L226 Difference]: Without dead ends: 212 [2020-04-17 18:42:04,982 INFO L678 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 [2020-04-17 18:42:04,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-04-17 18:42:04,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-04-17 18:42:04,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-04-17 18:42:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 464 transitions. [2020-04-17 18:42:05,000 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 464 transitions. Word has length 15 [2020-04-17 18:42:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:05,000 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 464 transitions. [2020-04-17 18:42:05,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:42:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 464 transitions. [2020-04-17 18:42:05,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:42:05,003 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:05,003 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:05,003 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:05,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:05,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1061498615, now seen corresponding path program 1 times [2020-04-17 18:42:05,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:05,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116667147] [2020-04-17 18:42:05,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:05,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116667147] [2020-04-17 18:42:05,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:42:05,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:42:05,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326342970] [2020-04-17 18:42:05,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:42:05,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:05,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:42:05,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:42:05,103 INFO L87 Difference]: Start difference. First operand 212 states and 464 transitions. Second operand 3 states. [2020-04-17 18:42:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:05,125 INFO L93 Difference]: Finished difference Result 272 states and 590 transitions. [2020-04-17 18:42:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:42:05,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-04-17 18:42:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:05,128 INFO L225 Difference]: With dead ends: 272 [2020-04-17 18:42:05,128 INFO L226 Difference]: Without dead ends: 272 [2020-04-17 18:42:05,129 INFO L678 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 [2020-04-17 18:42:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-04-17 18:42:05,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 218. [2020-04-17 18:42:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-17 18:42:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 476 transitions. [2020-04-17 18:42:05,145 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 476 transitions. Word has length 19 [2020-04-17 18:42:05,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:05,146 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 476 transitions. [2020-04-17 18:42:05,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:42:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 476 transitions. [2020-04-17 18:42:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-17 18:42:05,150 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:05,151 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:05,151 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:05,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1197878433, now seen corresponding path program 1 times [2020-04-17 18:42:05,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:05,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936079069] [2020-04-17 18:42:05,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:05,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936079069] [2020-04-17 18:42:05,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:42:05,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:42:05,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467703743] [2020-04-17 18:42:05,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:42:05,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:05,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:42:05,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:42:05,298 INFO L87 Difference]: Start difference. First operand 218 states and 476 transitions. Second operand 3 states. [2020-04-17 18:42:05,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:05,336 INFO L93 Difference]: Finished difference Result 166 states and 334 transitions. [2020-04-17 18:42:05,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:42:05,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-04-17 18:42:05,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:05,338 INFO L225 Difference]: With dead ends: 166 [2020-04-17 18:42:05,338 INFO L226 Difference]: Without dead ends: 164 [2020-04-17 18:42:05,339 INFO L678 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 [2020-04-17 18:42:05,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-04-17 18:42:05,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-04-17 18:42:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-04-17 18:42:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 331 transitions. [2020-04-17 18:42:05,346 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 331 transitions. Word has length 26 [2020-04-17 18:42:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:05,347 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 331 transitions. [2020-04-17 18:42:05,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:42:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 331 transitions. [2020-04-17 18:42:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-17 18:42:05,349 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:05,349 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:05,349 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:05,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:05,350 INFO L82 PathProgramCache]: Analyzing trace with hash -969107883, now seen corresponding path program 1 times [2020-04-17 18:42:05,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:05,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563130281] [2020-04-17 18:42:05,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:05,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:05,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563130281] [2020-04-17 18:42:05,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116623529] [2020-04-17 18:42:05,436 INFO L94 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 [2020-04-17 18:42:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:05,563 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 3 conjunts are in the unsatisfiable core [2020-04-17 18:42:05,571 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:05,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:05,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-04-17 18:42:05,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517569627] [2020-04-17 18:42:05,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:42:05,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:05,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:42:05,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:42:05,600 INFO L87 Difference]: Start difference. First operand 164 states and 331 transitions. Second operand 5 states. [2020-04-17 18:42:05,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:05,642 INFO L93 Difference]: Finished difference Result 240 states and 472 transitions. [2020-04-17 18:42:05,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 18:42:05,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-04-17 18:42:05,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:05,645 INFO L225 Difference]: With dead ends: 240 [2020-04-17 18:42:05,645 INFO L226 Difference]: Without dead ends: 240 [2020-04-17 18:42:05,646 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:42:05,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-04-17 18:42:05,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 204. [2020-04-17 18:42:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-04-17 18:42:05,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 405 transitions. [2020-04-17 18:42:05,657 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 405 transitions. Word has length 27 [2020-04-17 18:42:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:05,657 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 405 transitions. [2020-04-17 18:42:05,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:42:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 405 transitions. [2020-04-17 18:42:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-17 18:42:05,663 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:05,665 INFO L425 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] [2020-04-17 18:42:05,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:05,873 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:05,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:05,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1561383711, now seen corresponding path program 2 times [2020-04-17 18:42:05,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:05,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396987565] [2020-04-17 18:42:05,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:05,945 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:05,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396987565] [2020-04-17 18:42:05,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942284711] [2020-04-17 18:42:05,946 INFO L92 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 [2020-04-17 18:42:06,074 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-17 18:42:06,075 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:06,076 INFO L264 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2020-04-17 18:42:06,078 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:06,093 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:06,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:06,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-04-17 18:42:06,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365241298] [2020-04-17 18:42:06,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 18:42:06,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:06,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 18:42:06,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-04-17 18:42:06,095 INFO L87 Difference]: Start difference. First operand 204 states and 405 transitions. Second operand 6 states. [2020-04-17 18:42:06,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:06,137 INFO L93 Difference]: Finished difference Result 280 states and 546 transitions. [2020-04-17 18:42:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:42:06,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-04-17 18:42:06,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:06,140 INFO L225 Difference]: With dead ends: 280 [2020-04-17 18:42:06,140 INFO L226 Difference]: Without dead ends: 280 [2020-04-17 18:42:06,141 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-04-17 18:42:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-04-17 18:42:06,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 244. [2020-04-17 18:42:06,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-04-17 18:42:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 479 transitions. [2020-04-17 18:42:06,149 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 479 transitions. Word has length 34 [2020-04-17 18:42:06,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:06,150 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 479 transitions. [2020-04-17 18:42:06,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 18:42:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 479 transitions. [2020-04-17 18:42:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-17 18:42:06,151 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:06,151 INFO L425 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] [2020-04-17 18:42:06,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:06,356 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:06,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:06,356 INFO L82 PathProgramCache]: Analyzing trace with hash -303137003, now seen corresponding path program 3 times [2020-04-17 18:42:06,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:06,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086600402] [2020-04-17 18:42:06,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:06,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086600402] [2020-04-17 18:42:06,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182412542] [2020-04-17 18:42:06,435 INFO L92 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 [2020-04-17 18:42:07,011 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-04-17 18:42:07,012 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:07,016 INFO L264 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjunts are in the unsatisfiable core [2020-04-17 18:42:07,018 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:07,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:07,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-04-17 18:42:07,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440632842] [2020-04-17 18:42:07,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-17 18:42:07,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:07,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-17 18:42:07,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:42:07,043 INFO L87 Difference]: Start difference. First operand 244 states and 479 transitions. Second operand 7 states. [2020-04-17 18:42:07,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:07,097 INFO L93 Difference]: Finished difference Result 320 states and 620 transitions. [2020-04-17 18:42:07,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:42:07,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-04-17 18:42:07,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:07,100 INFO L225 Difference]: With dead ends: 320 [2020-04-17 18:42:07,101 INFO L226 Difference]: Without dead ends: 320 [2020-04-17 18:42:07,101 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:42:07,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-04-17 18:42:07,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 284. [2020-04-17 18:42:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-04-17 18:42:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 553 transitions. [2020-04-17 18:42:07,115 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 553 transitions. Word has length 41 [2020-04-17 18:42:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:07,116 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 553 transitions. [2020-04-17 18:42:07,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-17 18:42:07,116 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 553 transitions. [2020-04-17 18:42:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-17 18:42:07,117 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:07,118 INFO L425 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] [2020-04-17 18:42:07,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:07,331 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:07,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:07,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1439404639, now seen corresponding path program 4 times [2020-04-17 18:42:07,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:07,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252639755] [2020-04-17 18:42:07,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:07,444 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:07,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252639755] [2020-04-17 18:42:07,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081422327] [2020-04-17 18:42:07,445 INFO L92 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 [2020-04-17 18:42:07,598 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-17 18:42:07,598 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:07,599 INFO L264 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2020-04-17 18:42:07,602 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:07,621 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:07,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:07,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-04-17 18:42:07,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052373263] [2020-04-17 18:42:07,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-17 18:42:07,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:07,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-17 18:42:07,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:42:07,624 INFO L87 Difference]: Start difference. First operand 284 states and 553 transitions. Second operand 8 states. [2020-04-17 18:42:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:07,686 INFO L93 Difference]: Finished difference Result 360 states and 694 transitions. [2020-04-17 18:42:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 18:42:07,687 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-04-17 18:42:07,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:07,691 INFO L225 Difference]: With dead ends: 360 [2020-04-17 18:42:07,691 INFO L226 Difference]: Without dead ends: 360 [2020-04-17 18:42:07,692 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:42:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-04-17 18:42:07,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 324. [2020-04-17 18:42:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-04-17 18:42:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 627 transitions. [2020-04-17 18:42:07,703 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 627 transitions. Word has length 48 [2020-04-17 18:42:07,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:07,704 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 627 transitions. [2020-04-17 18:42:07,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-17 18:42:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 627 transitions. [2020-04-17 18:42:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-04-17 18:42:07,706 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:07,706 INFO L425 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] [2020-04-17 18:42:07,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:07,911 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:07,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:07,912 INFO L82 PathProgramCache]: Analyzing trace with hash -2001070123, now seen corresponding path program 5 times [2020-04-17 18:42:07,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:07,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184089175] [2020-04-17 18:42:07,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:08,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184089175] [2020-04-17 18:42:08,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240371581] [2020-04-17 18:42:08,010 INFO L92 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 [2020-04-17 18:42:08,176 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-04-17 18:42:08,176 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:08,178 INFO L264 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 39 conjunts are in the unsatisfiable core [2020-04-17 18:42:08,181 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:08,265 INFO L377 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 [2020-04-17 18:42:08,265 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,268 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,268 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,269 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-04-17 18:42:08,306 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,307 INFO L377 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 [2020-04-17 18:42:08,307 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,334 INFO L619 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-04-17 18:42:08,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:08,342 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:08,342 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:34 [2020-04-17 18:42:08,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:08,450 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,450 INFO L377 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 [2020-04-17 18:42:08,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:08,452 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,467 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:08,488 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,489 INFO L377 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 [2020-04-17 18:42:08,490 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,574 INFO L619 ElimStorePlain]: treesize reduction 49, result has 65.2 percent of original size [2020-04-17 18:42:08,576 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:08,576 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:95, output treesize:48 [2020-04-17 18:42:08,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:08,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:08,635 INFO L377 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 [2020-04-17 18:42:08,636 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,646 INFO L377 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 [2020-04-17 18:42:08,647 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,676 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,677 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:08,677 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-04-17 18:42:08,740 INFO L377 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 [2020-04-17 18:42:08,741 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,752 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,752 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,752 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-04-17 18:42:08,801 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:08,802 INFO L377 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 [2020-04-17 18:42:08,803 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,815 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,816 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-17 18:42:08,816 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:46, output treesize:19 [2020-04-17 18:42:08,882 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,883 INFO L377 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 [2020-04-17 18:42:08,884 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,905 INFO L619 ElimStorePlain]: treesize reduction 30, result has 44.4 percent of original size [2020-04-17 18:42:08,906 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,906 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-04-17 18:42:08,938 INFO L343 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-04-17 18:42:08,938 INFO L377 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 [2020-04-17 18:42:08,939 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,944 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:08,945 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:08,945 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-04-17 18:42:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 63 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-04-17 18:42:08,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:08,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2020-04-17 18:42:08,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346138909] [2020-04-17 18:42:08,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-17 18:42:08,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:08,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-17 18:42:08,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-04-17 18:42:08,959 INFO L87 Difference]: Start difference. First operand 324 states and 627 transitions. Second operand 17 states. [2020-04-17 18:42:11,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:11,817 INFO L93 Difference]: Finished difference Result 990 states and 1887 transitions. [2020-04-17 18:42:11,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-04-17 18:42:11,817 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-04-17 18:42:11,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:11,825 INFO L225 Difference]: With dead ends: 990 [2020-04-17 18:42:11,825 INFO L226 Difference]: Without dead ends: 990 [2020-04-17 18:42:11,827 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=738, Invalid=2342, Unknown=0, NotChecked=0, Total=3080 [2020-04-17 18:42:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2020-04-17 18:42:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 640. [2020-04-17 18:42:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-04-17 18:42:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1212 transitions. [2020-04-17 18:42:11,849 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1212 transitions. Word has length 55 [2020-04-17 18:42:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:11,849 INFO L479 AbstractCegarLoop]: Abstraction has 640 states and 1212 transitions. [2020-04-17 18:42:11,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-17 18:42:11,849 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1212 transitions. [2020-04-17 18:42:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-04-17 18:42:11,851 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:11,852 INFO L425 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:12,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:12,065 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:12,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:12,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1721466975, now seen corresponding path program 1 times [2020-04-17 18:42:12,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:12,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535190684] [2020-04-17 18:42:12,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:12,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535190684] [2020-04-17 18:42:12,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138252019] [2020-04-17 18:42:12,171 INFO L94 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 [2020-04-17 18:42:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:12,303 INFO L264 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2020-04-17 18:42:12,306 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:12,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:12,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-04-17 18:42:12,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685758645] [2020-04-17 18:42:12,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-17 18:42:12,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:12,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-17 18:42:12,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-04-17 18:42:12,324 INFO L87 Difference]: Start difference. First operand 640 states and 1212 transitions. Second operand 10 states. [2020-04-17 18:42:12,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:12,397 INFO L93 Difference]: Finished difference Result 828 states and 1557 transitions. [2020-04-17 18:42:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-17 18:42:12,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-04-17 18:42:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:12,404 INFO L225 Difference]: With dead ends: 828 [2020-04-17 18:42:12,404 INFO L226 Difference]: Without dead ends: 828 [2020-04-17 18:42:12,405 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-04-17 18:42:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-04-17 18:42:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 740. [2020-04-17 18:42:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-04-17 18:42:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1395 transitions. [2020-04-17 18:42:12,425 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1395 transitions. Word has length 64 [2020-04-17 18:42:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:12,426 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 1395 transitions. [2020-04-17 18:42:12,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-17 18:42:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1395 transitions. [2020-04-17 18:42:12,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-04-17 18:42:12,428 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:12,428 INFO L425 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] [2020-04-17 18:42:12,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:12,634 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:12,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:12,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1068182613, now seen corresponding path program 2 times [2020-04-17 18:42:12,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:12,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497293] [2020-04-17 18:42:12,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:12,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497293] [2020-04-17 18:42:12,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782855408] [2020-04-17 18:42:12,786 INFO L92 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 [2020-04-17 18:42:12,989 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-17 18:42:12,990 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:12,992 INFO L264 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 9 conjunts are in the unsatisfiable core [2020-04-17 18:42:12,995 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:13,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:13,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-04-17 18:42:13,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406981473] [2020-04-17 18:42:13,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-17 18:42:13,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:13,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-17 18:42:13,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-04-17 18:42:13,028 INFO L87 Difference]: Start difference. First operand 740 states and 1395 transitions. Second operand 11 states. [2020-04-17 18:42:13,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:13,118 INFO L93 Difference]: Finished difference Result 928 states and 1740 transitions. [2020-04-17 18:42:13,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-17 18:42:13,119 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-04-17 18:42:13,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:13,125 INFO L225 Difference]: With dead ends: 928 [2020-04-17 18:42:13,125 INFO L226 Difference]: Without dead ends: 928 [2020-04-17 18:42:13,125 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-04-17 18:42:13,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-04-17 18:42:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 840. [2020-04-17 18:42:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2020-04-17 18:42:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1578 transitions. [2020-04-17 18:42:13,145 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1578 transitions. Word has length 71 [2020-04-17 18:42:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:13,146 INFO L479 AbstractCegarLoop]: Abstraction has 840 states and 1578 transitions. [2020-04-17 18:42:13,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-17 18:42:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1578 transitions. [2020-04-17 18:42:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-04-17 18:42:13,149 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:13,149 INFO L425 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:13,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:13,355 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:13,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:13,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1341473003, now seen corresponding path program 3 times [2020-04-17 18:42:13,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:13,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424180630] [2020-04-17 18:42:13,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:13,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424180630] [2020-04-17 18:42:13,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179789038] [2020-04-17 18:42:13,496 INFO L92 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 [2020-04-17 18:42:14,170 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-04-17 18:42:14,171 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:14,173 INFO L264 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 61 conjunts are in the unsatisfiable core [2020-04-17 18:42:14,178 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:14,215 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,216 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 283 treesize of output 287 [2020-04-17 18:42:14,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,226 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,242 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,262 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,308 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,318 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,323 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,609 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 30 [2020-04-17 18:42:14,609 INFO L619 ElimStorePlain]: treesize reduction 3665, result has 1.1 percent of original size [2020-04-17 18:42:14,611 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,611 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:55, output treesize:4 [2020-04-17 18:42:14,640 INFO L377 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 [2020-04-17 18:42:14,640 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,644 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,644 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,645 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-04-17 18:42:14,661 INFO L377 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 [2020-04-17 18:42:14,662 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,678 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,678 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,679 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2020-04-17 18:42:14,708 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:14,720 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,721 INFO L377 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 [2020-04-17 18:42:14,721 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,747 INFO L619 ElimStorePlain]: treesize reduction 30, result has 53.1 percent of original size [2020-04-17 18:42:14,747 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,748 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:20 [2020-04-17 18:42:14,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:14,780 INFO L377 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 [2020-04-17 18:42:14,780 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,790 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,791 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,791 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-04-17 18:42:14,823 INFO L377 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 [2020-04-17 18:42:14,824 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,831 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,831 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,832 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:14 [2020-04-17 18:42:14,907 INFO L377 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 [2020-04-17 18:42:14,907 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,915 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,916 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:14,916 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-04-17 18:42:14,964 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:14,977 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:14,978 INFO L377 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 [2020-04-17 18:42:14,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:14,982 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-04-17 18:42:15,012 INFO L619 ElimStorePlain]: treesize reduction 92, result has 26.4 percent of original size [2020-04-17 18:42:15,012 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:15,013 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:16 [2020-04-17 18:42:15,033 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:15,035 INFO L377 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 [2020-04-17 18:42:15,035 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:15,044 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:15,045 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:15,045 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-04-17 18:42:15,048 INFO L377 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 [2020-04-17 18:42:15,049 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:15,051 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:15,051 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:15,051 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:1 [2020-04-17 18:42:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 78 proven. 35 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-04-17 18:42:15,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:15,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2020-04-17 18:42:15,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378692519] [2020-04-17 18:42:15,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-04-17 18:42:15,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:15,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-04-17 18:42:15,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2020-04-17 18:42:15,064 INFO L87 Difference]: Start difference. First operand 840 states and 1578 transitions. Second operand 21 states. [2020-04-17 18:42:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:17,423 INFO L93 Difference]: Finished difference Result 1310 states and 2402 transitions. [2020-04-17 18:42:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-04-17 18:42:17,423 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 79 [2020-04-17 18:42:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:17,430 INFO L225 Difference]: With dead ends: 1310 [2020-04-17 18:42:17,431 INFO L226 Difference]: Without dead ends: 1310 [2020-04-17 18:42:17,433 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1527, Invalid=4173, Unknown=0, NotChecked=0, Total=5700 [2020-04-17 18:42:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2020-04-17 18:42:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 885. [2020-04-17 18:42:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-04-17 18:42:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1627 transitions. [2020-04-17 18:42:17,455 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1627 transitions. Word has length 79 [2020-04-17 18:42:17,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:17,456 INFO L479 AbstractCegarLoop]: Abstraction has 885 states and 1627 transitions. [2020-04-17 18:42:17,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-04-17 18:42:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1627 transitions. [2020-04-17 18:42:17,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-04-17 18:42:17,458 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:17,458 INFO L425 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:17,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:17,665 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:17,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:17,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1687151893, now seen corresponding path program 4 times [2020-04-17 18:42:17,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:17,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409685088] [2020-04-17 18:42:17,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:17,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409685088] [2020-04-17 18:42:17,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609635415] [2020-04-17 18:42:17,814 INFO L92 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 [2020-04-17 18:42:19,146 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-17 18:42:19,146 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:19,150 INFO L264 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 11 conjunts are in the unsatisfiable core [2020-04-17 18:42:19,152 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:19,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:19,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2020-04-17 18:42:19,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427893148] [2020-04-17 18:42:19,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-17 18:42:19,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:19,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-17 18:42:19,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:42:19,180 INFO L87 Difference]: Start difference. First operand 885 states and 1627 transitions. Second operand 13 states. [2020-04-17 18:42:19,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:19,246 INFO L93 Difference]: Finished difference Result 1057 states and 1936 transitions. [2020-04-17 18:42:19,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-17 18:42:19,246 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2020-04-17 18:42:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:19,252 INFO L225 Difference]: With dead ends: 1057 [2020-04-17 18:42:19,252 INFO L226 Difference]: Without dead ends: 1057 [2020-04-17 18:42:19,252 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-04-17 18:42:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2020-04-17 18:42:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 977. [2020-04-17 18:42:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-04-17 18:42:19,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1792 transitions. [2020-04-17 18:42:19,272 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1792 transitions. Word has length 89 [2020-04-17 18:42:19,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:19,272 INFO L479 AbstractCegarLoop]: Abstraction has 977 states and 1792 transitions. [2020-04-17 18:42:19,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-17 18:42:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1792 transitions. [2020-04-17 18:42:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-04-17 18:42:19,274 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:19,275 INFO L425 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:19,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:19,480 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:19,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:19,480 INFO L82 PathProgramCache]: Analyzing trace with hash 792310527, now seen corresponding path program 5 times [2020-04-17 18:42:19,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:19,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056521564] [2020-04-17 18:42:19,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:19,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056521564] [2020-04-17 18:42:19,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794498502] [2020-04-17 18:42:19,691 INFO L92 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 [2020-04-17 18:42:20,800 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2020-04-17 18:42:20,800 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:20,805 INFO L264 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 112 conjunts are in the unsatisfiable core [2020-04-17 18:42:20,808 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:20,826 INFO L377 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 [2020-04-17 18:42:20,826 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:20,833 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:20,834 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:20,834 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2020-04-17 18:42:20,852 INFO L377 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 [2020-04-17 18:42:20,853 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:20,858 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:20,859 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:20,859 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:9 [2020-04-17 18:42:20,895 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:20,896 INFO L377 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 [2020-04-17 18:42:20,896 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:20,927 INFO L619 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-04-17 18:42:20,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:20,929 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:20,929 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:34 [2020-04-17 18:42:20,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,013 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,014 INFO L377 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 [2020-04-17 18:42:21,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,015 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,020 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:21,033 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,033 INFO L377 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 [2020-04-17 18:42:21,034 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,121 INFO L619 ElimStorePlain]: treesize reduction 49, result has 65.2 percent of original size [2020-04-17 18:42:21,123 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:21,123 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:95, output treesize:48 [2020-04-17 18:42:21,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,177 INFO L377 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 [2020-04-17 18:42:21,177 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,182 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:21,186 INFO L377 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 [2020-04-17 18:42:21,187 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,217 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,218 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:21,218 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-04-17 18:42:21,269 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,279 INFO L377 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 [2020-04-17 18:42:21,280 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,285 INFO L377 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 [2020-04-17 18:42:21,285 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,303 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,304 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:21,304 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:35 [2020-04-17 18:42:21,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,361 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,362 INFO L377 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 [2020-04-17 18:42:21,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,363 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,390 INFO L377 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 [2020-04-17 18:42:21,390 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,455 INFO L619 ElimStorePlain]: treesize reduction 24, result has 77.4 percent of original size [2020-04-17 18:42:21,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,457 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-04-17 18:42:21,457 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:59 [2020-04-17 18:42:21,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,550 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,551 INFO L377 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 [2020-04-17 18:42:21,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,552 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,555 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:21,574 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,574 INFO L377 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 [2020-04-17 18:42:21,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,576 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,676 INFO L619 ElimStorePlain]: treesize reduction 55, result has 64.1 percent of original size [2020-04-17 18:42:21,677 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:21,677 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-04-17 18:42:21,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,739 INFO L377 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 [2020-04-17 18:42:21,739 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,743 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:21,747 INFO L377 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 [2020-04-17 18:42:21,748 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,779 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,780 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:21,780 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-04-17 18:42:21,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,848 INFO L377 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 [2020-04-17 18:42:21,849 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,854 INFO L377 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 [2020-04-17 18:42:21,854 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,872 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,873 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:21,873 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:35 [2020-04-17 18:42:21,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,922 INFO L377 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 [2020-04-17 18:42:21,923 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:21,961 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:21,961 INFO L377 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 [2020-04-17 18:42:21,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:21,962 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,030 INFO L619 ElimStorePlain]: treesize reduction 24, result has 77.4 percent of original size [2020-04-17 18:42:22,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:22,032 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-04-17 18:42:22,032 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:59 [2020-04-17 18:42:22,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:22,151 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,151 INFO L377 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 [2020-04-17 18:42:22,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:22,152 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,157 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:22,175 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,175 INFO L377 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 [2020-04-17 18:42:22,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:22,177 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,276 INFO L619 ElimStorePlain]: treesize reduction 55, result has 64.1 percent of original size [2020-04-17 18:42:22,277 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:22,277 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-04-17 18:42:22,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:22,344 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:22,349 INFO L377 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 [2020-04-17 18:42:22,350 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,361 INFO L377 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 [2020-04-17 18:42:22,361 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,395 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,396 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:42:22,397 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-04-17 18:42:22,488 INFO L377 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 [2020-04-17 18:42:22,489 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,499 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,500 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,500 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-04-17 18:42:22,541 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:22,542 INFO L377 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 [2020-04-17 18:42:22,542 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,558 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,587 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,587 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-04-17 18:42:22,665 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:22,677 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,677 INFO L377 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 [2020-04-17 18:42:22,678 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,724 INFO L619 ElimStorePlain]: treesize reduction 30, result has 64.3 percent of original size [2020-04-17 18:42:22,725 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,726 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-04-17 18:42:22,790 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:22,791 INFO L377 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 [2020-04-17 18:42:22,792 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,811 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,811 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,811 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-04-17 18:42:22,878 INFO L377 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 [2020-04-17 18:42:22,879 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,893 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,894 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,894 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-04-17 18:42:22,938 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:22,939 INFO L377 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 [2020-04-17 18:42:22,940 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,956 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:22,957 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:22,957 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-04-17 18:42:23,063 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:23,077 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:23,077 INFO L377 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 [2020-04-17 18:42:23,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:23,079 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,121 INFO L619 ElimStorePlain]: treesize reduction 35, result has 63.2 percent of original size [2020-04-17 18:42:23,121 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,122 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-04-17 18:42:23,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:23,177 INFO L377 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 [2020-04-17 18:42:23,178 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,195 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:23,195 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,196 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-04-17 18:42:23,259 INFO L377 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 [2020-04-17 18:42:23,260 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,271 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:23,272 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,273 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-04-17 18:42:23,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:23,313 INFO L377 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 [2020-04-17 18:42:23,314 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,325 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:23,326 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-17 18:42:23,326 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:46, output treesize:19 [2020-04-17 18:42:23,397 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:23,397 INFO L377 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 [2020-04-17 18:42:23,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:23,399 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,421 INFO L619 ElimStorePlain]: treesize reduction 35, result has 46.2 percent of original size [2020-04-17 18:42:23,422 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,422 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-04-17 18:42:23,464 INFO L343 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-04-17 18:42:23,465 INFO L377 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 [2020-04-17 18:42:23,465 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,477 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:23,478 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:23,478 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-04-17 18:42:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 228 proven. 54 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-04-17 18:42:23,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:23,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 31] total 42 [2020-04-17 18:42:23,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219187786] [2020-04-17 18:42:23,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-04-17 18:42:23,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:23,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-04-17 18:42:23,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1408, Unknown=0, NotChecked=0, Total=1722 [2020-04-17 18:42:23,522 INFO L87 Difference]: Start difference. First operand 977 states and 1792 transitions. Second operand 42 states. [2020-04-17 18:42:39,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:39,084 INFO L93 Difference]: Finished difference Result 3677 states and 6688 transitions. [2020-04-17 18:42:39,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2020-04-17 18:42:39,092 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 96 [2020-04-17 18:42:39,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:39,107 INFO L225 Difference]: With dead ends: 3677 [2020-04-17 18:42:39,107 INFO L226 Difference]: Without dead ends: 3677 [2020-04-17 18:42:39,122 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 221 SyntacticMatches, 2 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25986 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=8601, Invalid=51179, Unknown=0, NotChecked=0, Total=59780 [2020-04-17 18:42:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2020-04-17 18:42:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 2490. [2020-04-17 18:42:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2490 states. [2020-04-17 18:42:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4493 transitions. [2020-04-17 18:42:39,187 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4493 transitions. Word has length 96 [2020-04-17 18:42:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:39,187 INFO L479 AbstractCegarLoop]: Abstraction has 2490 states and 4493 transitions. [2020-04-17 18:42:39,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-04-17 18:42:39,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4493 transitions. [2020-04-17 18:42:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-04-17 18:42:39,195 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:39,195 INFO L425 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] [2020-04-17 18:42:39,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:39,403 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:39,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:39,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1634230719, now seen corresponding path program 6 times [2020-04-17 18:42:39,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:39,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839783460] [2020-04-17 18:42:39,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:39,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839783460] [2020-04-17 18:42:39,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503626123] [2020-04-17 18:42:39,611 INFO L92 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 [2020-04-17 18:42:53,609 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2020-04-17 18:42:53,609 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:53,619 INFO L264 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 87 conjunts are in the unsatisfiable core [2020-04-17 18:42:53,622 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:53,633 INFO L377 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 231 treesize of output 223 [2020-04-17 18:42:53,634 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,704 INFO L619 ElimStorePlain]: treesize reduction 184, result has 11.1 percent of original size [2020-04-17 18:42:53,705 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,706 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:27, output treesize:11 [2020-04-17 18:42:53,763 INFO L377 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 [2020-04-17 18:42:53,763 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,772 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:53,772 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,772 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2020-04-17 18:42:53,798 INFO L377 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 22 [2020-04-17 18:42:53,798 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,808 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:53,808 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,808 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:20 [2020-04-17 18:42:53,866 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:53,877 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:53,878 INFO L377 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 [2020-04-17 18:42:53,878 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,913 INFO L619 ElimStorePlain]: treesize reduction 30, result has 57.1 percent of original size [2020-04-17 18:42:53,913 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,913 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:26 [2020-04-17 18:42:53,943 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:53,944 INFO L377 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 [2020-04-17 18:42:53,945 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,959 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:53,959 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:53,960 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:26 [2020-04-17 18:42:53,996 INFO L377 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 [2020-04-17 18:42:53,996 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,009 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,010 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,010 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:44, output treesize:20 [2020-04-17 18:42:54,033 INFO L377 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 [2020-04-17 18:42:54,033 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,042 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,043 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,043 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:20 [2020-04-17 18:42:54,077 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:54,090 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,090 INFO L377 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 [2020-04-17 18:42:54,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:54,092 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,136 INFO L619 ElimStorePlain]: treesize reduction 35, result has 56.8 percent of original size [2020-04-17 18:42:54,137 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,137 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:26 [2020-04-17 18:42:54,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:54,171 INFO L377 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 [2020-04-17 18:42:54,172 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,186 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,187 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,187 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:26 [2020-04-17 18:42:54,238 INFO L377 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 [2020-04-17 18:42:54,239 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,248 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,249 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,249 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:44, output treesize:20 [2020-04-17 18:42:54,278 INFO L377 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 22 [2020-04-17 18:42:54,279 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,285 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,286 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,286 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:30, output treesize:13 [2020-04-17 18:42:54,334 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:42:54,349 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,349 INFO L377 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 [2020-04-17 18:42:54,350 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:54,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:54,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:42:54,352 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-04-17 18:42:54,384 INFO L619 ElimStorePlain]: treesize reduction 92, result has 28.1 percent of original size [2020-04-17 18:42:54,385 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,385 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:19 [2020-04-17 18:42:54,412 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:42:54,413 INFO L377 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 [2020-04-17 18:42:54,414 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,424 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,424 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,424 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:19 [2020-04-17 18:42:54,427 INFO L377 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 [2020-04-17 18:42:54,428 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,428 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:42:54,429 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:42:54,429 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:1 [2020-04-17 18:42:54,449 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 197 proven. 59 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-04-17 18:42:54,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:54,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18] total 31 [2020-04-17 18:42:54,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135054966] [2020-04-17 18:42:54,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-04-17 18:42:54,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:54,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-04-17 18:42:54,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2020-04-17 18:42:54,451 INFO L87 Difference]: Start difference. First operand 2490 states and 4493 transitions. Second operand 31 states. [2020-04-17 18:42:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:55,804 INFO L93 Difference]: Finished difference Result 2925 states and 5260 transitions. [2020-04-17 18:42:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-04-17 18:42:55,805 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 104 [2020-04-17 18:42:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:55,817 INFO L225 Difference]: With dead ends: 2925 [2020-04-17 18:42:55,817 INFO L226 Difference]: Without dead ends: 2925 [2020-04-17 18:42:55,818 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=989, Invalid=2433, Unknown=0, NotChecked=0, Total=3422 [2020-04-17 18:42:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2020-04-17 18:42:55,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2588. [2020-04-17 18:42:55,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2588 states. [2020-04-17 18:42:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 4662 transitions. [2020-04-17 18:42:55,864 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 4662 transitions. Word has length 104 [2020-04-17 18:42:55,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:55,864 INFO L479 AbstractCegarLoop]: Abstraction has 2588 states and 4662 transitions. [2020-04-17 18:42:55,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-04-17 18:42:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 4662 transitions. [2020-04-17 18:42:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-04-17 18:42:55,870 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:55,870 INFO L425 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] [2020-04-17 18:42:56,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:56,072 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:56,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:56,072 INFO L82 PathProgramCache]: Analyzing trace with hash -431439745, now seen corresponding path program 7 times [2020-04-17 18:42:56,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:56,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943836856] [2020-04-17 18:42:56,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:56,264 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:56,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943836856] [2020-04-17 18:42:56,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195493183] [2020-04-17 18:42:56,264 INFO L92 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 [2020-04-17 18:42:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:56,415 INFO L264 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 14 conjunts are in the unsatisfiable core [2020-04-17 18:42:56,419 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:56,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:56,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2020-04-17 18:42:56,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405888036] [2020-04-17 18:42:56,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:42:56,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:56,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:42:56,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:42:56,476 INFO L87 Difference]: Start difference. First operand 2588 states and 4662 transitions. Second operand 16 states. [2020-04-17 18:42:56,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:56,584 INFO L93 Difference]: Finished difference Result 3181 states and 5726 transitions. [2020-04-17 18:42:56,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-17 18:42:56,584 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-04-17 18:42:56,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:56,597 INFO L225 Difference]: With dead ends: 3181 [2020-04-17 18:42:56,598 INFO L226 Difference]: Without dead ends: 3181 [2020-04-17 18:42:56,598 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:42:56,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2020-04-17 18:42:56,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2904. [2020-04-17 18:42:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2904 states. [2020-04-17 18:42:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 5228 transitions. [2020-04-17 18:42:56,648 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 5228 transitions. Word has length 112 [2020-04-17 18:42:56,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:56,649 INFO L479 AbstractCegarLoop]: Abstraction has 2904 states and 5228 transitions. [2020-04-17 18:42:56,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:42:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 5228 transitions. [2020-04-17 18:42:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-04-17 18:42:56,656 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:56,656 INFO L425 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:56,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:56,860 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:56,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:56,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1374380831, now seen corresponding path program 8 times [2020-04-17 18:42:56,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:56,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969008975] [2020-04-17 18:42:56,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:57,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969008975] [2020-04-17 18:42:57,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840881674] [2020-04-17 18:42:57,075 INFO L92 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 [2020-04-17 18:42:57,246 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-17 18:42:57,246 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:42:57,250 INFO L264 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 15 conjunts are in the unsatisfiable core [2020-04-17 18:42:57,252 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:42:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:57,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:42:57,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2020-04-17 18:42:57,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222321060] [2020-04-17 18:42:57,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-17 18:42:57,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:42:57,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-17 18:42:57,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2020-04-17 18:42:57,272 INFO L87 Difference]: Start difference. First operand 2904 states and 5228 transitions. Second operand 17 states. [2020-04-17 18:42:57,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:42:57,364 INFO L93 Difference]: Finished difference Result 3497 states and 6292 transitions. [2020-04-17 18:42:57,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-17 18:42:57,365 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 120 [2020-04-17 18:42:57,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:42:57,376 INFO L225 Difference]: With dead ends: 3497 [2020-04-17 18:42:57,376 INFO L226 Difference]: Without dead ends: 3497 [2020-04-17 18:42:57,376 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2020-04-17 18:42:57,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2020-04-17 18:42:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3220. [2020-04-17 18:42:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3220 states. [2020-04-17 18:42:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 5794 transitions. [2020-04-17 18:42:57,429 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 5794 transitions. Word has length 120 [2020-04-17 18:42:57,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:42:57,429 INFO L479 AbstractCegarLoop]: Abstraction has 3220 states and 5794 transitions. [2020-04-17 18:42:57,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-17 18:42:57,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 5794 transitions. [2020-04-17 18:42:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-04-17 18:42:57,436 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:42:57,436 INFO L425 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 10, 10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:42:57,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:42:57,641 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:42:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:42:57,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1816213599, now seen corresponding path program 9 times [2020-04-17 18:42:57,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:42:57,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546660709] [2020-04-17 18:42:57,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:42:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:42:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:42:57,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546660709] [2020-04-17 18:42:57,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483387559] [2020-04-17 18:42:57,866 INFO L92 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 [2020-04-17 18:43:01,504 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-04-17 18:43:01,504 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:43:01,511 INFO L264 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 115 conjunts are in the unsatisfiable core [2020-04-17 18:43:01,514 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:43:01,536 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:01,537 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 134 treesize of output 152 [2020-04-17 18:43:01,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:01,558 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,693 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 34 [2020-04-17 18:43:01,694 INFO L619 ElimStorePlain]: treesize reduction 1287, result has 3.5 percent of original size [2020-04-17 18:43:01,694 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,695 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:61, output treesize:11 [2020-04-17 18:43:01,745 INFO L377 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 [2020-04-17 18:43:01,745 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,753 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:01,753 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,753 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2020-04-17 18:43:01,778 INFO L377 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 [2020-04-17 18:43:01,778 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,788 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:01,788 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,788 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:20 [2020-04-17 18:43:01,826 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:01,843 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:01,844 INFO L377 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 [2020-04-17 18:43:01,845 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,893 INFO L619 ElimStorePlain]: treesize reduction 30, result has 57.1 percent of original size [2020-04-17 18:43:01,893 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,894 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:26 [2020-04-17 18:43:01,943 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:01,944 INFO L377 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 [2020-04-17 18:43:01,945 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,965 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:01,966 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:01,967 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:26 [2020-04-17 18:43:02,049 INFO L377 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 [2020-04-17 18:43:02,050 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,061 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,061 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,061 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:20 [2020-04-17 18:43:02,101 INFO L377 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 [2020-04-17 18:43:02,102 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,116 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,117 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,117 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:20 [2020-04-17 18:43:02,172 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:02,185 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,185 INFO L377 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 [2020-04-17 18:43:02,186 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,225 INFO L619 ElimStorePlain]: treesize reduction 26, result has 57.4 percent of original size [2020-04-17 18:43:02,226 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,226 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:26 [2020-04-17 18:43:02,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:02,265 INFO L377 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 [2020-04-17 18:43:02,266 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,279 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,279 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,280 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:26 [2020-04-17 18:43:02,348 INFO L377 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 [2020-04-17 18:43:02,349 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,357 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,357 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,358 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:20 [2020-04-17 18:43:02,387 INFO L377 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 [2020-04-17 18:43:02,387 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,397 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,397 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,398 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:20 [2020-04-17 18:43:02,434 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:02,447 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,448 INFO L377 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 [2020-04-17 18:43:02,448 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,481 INFO L619 ElimStorePlain]: treesize reduction 26, result has 57.4 percent of original size [2020-04-17 18:43:02,481 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,482 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:26 [2020-04-17 18:43:02,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:02,519 INFO L377 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 [2020-04-17 18:43:02,520 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,535 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,535 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,536 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:26 [2020-04-17 18:43:02,597 INFO L377 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 [2020-04-17 18:43:02,597 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,605 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,605 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,606 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:20 [2020-04-17 18:43:02,640 INFO L377 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 [2020-04-17 18:43:02,640 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,648 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,648 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,648 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2020-04-17 18:43:02,706 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:02,718 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,718 INFO L377 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 [2020-04-17 18:43:02,719 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,745 INFO L619 ElimStorePlain]: treesize reduction 26, result has 54.4 percent of original size [2020-04-17 18:43:02,746 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,746 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:22 [2020-04-17 18:43:02,781 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:02,782 INFO L377 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 [2020-04-17 18:43:02,782 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,799 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,799 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,799 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:22 [2020-04-17 18:43:02,803 INFO L377 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 [2020-04-17 18:43:02,804 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,805 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:02,805 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:02,805 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:1 [2020-04-17 18:43:02,869 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 273 proven. 89 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-04-17 18:43:02,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:43:02,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 35 [2020-04-17 18:43:02,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178233983] [2020-04-17 18:43:02,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-04-17 18:43:02,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:43:02,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-04-17 18:43:02,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=976, Unknown=0, NotChecked=0, Total=1190 [2020-04-17 18:43:02,871 INFO L87 Difference]: Start difference. First operand 3220 states and 5794 transitions. Second operand 35 states. [2020-04-17 18:43:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:43:11,553 INFO L93 Difference]: Finished difference Result 4879 states and 8612 transitions. [2020-04-17 18:43:11,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2020-04-17 18:43:11,554 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 128 [2020-04-17 18:43:11,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:43:11,573 INFO L225 Difference]: With dead ends: 4879 [2020-04-17 18:43:11,574 INFO L226 Difference]: Without dead ends: 4879 [2020-04-17 18:43:11,576 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 108 SyntacticMatches, 3 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15944 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=5065, Invalid=33547, Unknown=0, NotChecked=0, Total=38612 [2020-04-17 18:43:11,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2020-04-17 18:43:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 2133. [2020-04-17 18:43:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2133 states. [2020-04-17 18:43:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3835 transitions. [2020-04-17 18:43:11,620 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3835 transitions. Word has length 128 [2020-04-17 18:43:11,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:43:11,621 INFO L479 AbstractCegarLoop]: Abstraction has 2133 states and 3835 transitions. [2020-04-17 18:43:11,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-04-17 18:43:11,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3835 transitions. [2020-04-17 18:43:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-04-17 18:43:11,625 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:43:11,626 INFO L425 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] [2020-04-17 18:43:11,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:43:11,833 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:43:11,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:43:11,834 INFO L82 PathProgramCache]: Analyzing trace with hash 435600831, now seen corresponding path program 10 times [2020-04-17 18:43:11,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:43:11,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102882322] [2020-04-17 18:43:11,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:43:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:43:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 717 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:43:12,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102882322] [2020-04-17 18:43:12,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552845633] [2020-04-17 18:43:12,108 INFO L92 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 [2020-04-17 18:43:43,427 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-17 18:43:43,428 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:43:43,435 INFO L264 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 17 conjunts are in the unsatisfiable core [2020-04-17 18:43:43,438 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:43:43,484 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 717 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:43:43,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:43:43,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2020-04-17 18:43:43,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578309654] [2020-04-17 18:43:43,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-17 18:43:43,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:43:43,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-17 18:43:43,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:43:43,485 INFO L87 Difference]: Start difference. First operand 2133 states and 3835 transitions. Second operand 19 states. [2020-04-17 18:43:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:43:43,606 INFO L93 Difference]: Finished difference Result 2480 states and 4443 transitions. [2020-04-17 18:43:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-17 18:43:43,607 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 136 [2020-04-17 18:43:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:43:43,612 INFO L225 Difference]: With dead ends: 2480 [2020-04-17 18:43:43,612 INFO L226 Difference]: Without dead ends: 2480 [2020-04-17 18:43:43,613 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:43:43,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2020-04-17 18:43:43,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2338. [2020-04-17 18:43:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2338 states. [2020-04-17 18:43:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 4191 transitions. [2020-04-17 18:43:43,648 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 4191 transitions. Word has length 136 [2020-04-17 18:43:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:43:43,648 INFO L479 AbstractCegarLoop]: Abstraction has 2338 states and 4191 transitions. [2020-04-17 18:43:43,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-17 18:43:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 4191 transitions. [2020-04-17 18:43:43,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-04-17 18:43:43,652 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:43:43,653 INFO L425 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:43:43,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:43:43,870 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:43:43,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:43:43,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1311653863, now seen corresponding path program 11 times [2020-04-17 18:43:43,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:43:43,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507408119] [2020-04-17 18:43:43,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:43:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:43:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 826 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:43:44,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507408119] [2020-04-17 18:43:44,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838973928] [2020-04-17 18:43:44,249 INFO L92 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 [2020-04-17 18:43:51,854 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2020-04-17 18:43:51,854 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:43:51,865 INFO L264 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 173 conjunts are in the unsatisfiable core [2020-04-17 18:43:51,869 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:43:51,926 INFO L377 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 32 treesize of output 16 [2020-04-17 18:43:51,926 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:51,928 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:51,928 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:51,928 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:10 [2020-04-17 18:43:51,963 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:51,963 INFO L377 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 63 [2020-04-17 18:43:51,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:51,964 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:51,996 INFO L619 ElimStorePlain]: treesize reduction 24, result has 63.1 percent of original size [2020-04-17 18:43:51,996 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:51,997 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:51,998 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:35 [2020-04-17 18:43:52,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,071 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:52,073 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:52,116 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,117 INFO L377 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 32 treesize of output 50 [2020-04-17 18:43:52,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,119 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,139 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,139 INFO L377 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 [2020-04-17 18:43:52,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,141 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,233 INFO L619 ElimStorePlain]: treesize reduction 149, result has 33.5 percent of original size [2020-04-17 18:43:52,234 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,234 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:90, output treesize:49 [2020-04-17 18:43:52,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:52,322 INFO L377 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 26 treesize of output 25 [2020-04-17 18:43:52,322 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,328 INFO L377 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 [2020-04-17 18:43:52,329 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,367 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,367 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,367 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:79, output treesize:49 [2020-04-17 18:43:52,447 INFO L377 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 [2020-04-17 18:43:52,447 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,450 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,450 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,450 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:9 [2020-04-17 18:43:52,500 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,501 INFO L377 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 [2020-04-17 18:43:52,501 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,533 INFO L619 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-04-17 18:43:52,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,534 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,535 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:34 [2020-04-17 18:43:52,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,630 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:52,632 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:52,649 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,649 INFO L377 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 [2020-04-17 18:43:52,650 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,669 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,670 INFO L377 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 [2020-04-17 18:43:52,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,670 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,757 INFO L619 ElimStorePlain]: treesize reduction 49, result has 65.2 percent of original size [2020-04-17 18:43:52,758 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,758 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:95, output treesize:48 [2020-04-17 18:43:52,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,815 INFO L377 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 [2020-04-17 18:43:52,815 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,821 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:52,826 INFO L377 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 [2020-04-17 18:43:52,826 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,857 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,858 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,858 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-04-17 18:43:52,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:52,936 INFO L377 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 [2020-04-17 18:43:52,936 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,952 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,956 INFO L377 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 [2020-04-17 18:43:52,957 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:52,967 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:52,968 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:52,968 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:35 [2020-04-17 18:43:53,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,009 INFO L377 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 11 treesize of output 7 [2020-04-17 18:43:53,010 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,038 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,038 INFO L377 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 21 treesize of output 50 [2020-04-17 18:43:53,039 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,092 INFO L619 ElimStorePlain]: treesize reduction 20, result has 75.0 percent of original size [2020-04-17 18:43:53,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,094 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-04-17 18:43:53,094 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:60 [2020-04-17 18:43:53,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,221 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,222 INFO L377 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 3 case distinctions, treesize of input 33 treesize of output 123 [2020-04-17 18:43:53,222 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,248 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,248 INFO L377 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 24 treesize of output 57 [2020-04-17 18:43:53,249 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,278 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,278 INFO L377 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 [2020-04-17 18:43:53,279 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,410 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-17 18:43:53,411 INFO L619 ElimStorePlain]: treesize reduction 118, result has 53.7 percent of original size [2020-04-17 18:43:53,411 INFO L539 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-17 18:43:53,412 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:108, output treesize:58 [2020-04-17 18:43:53,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2020-04-17 18:43:53,564 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,565 INFO L377 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 [2020-04-17 18:43:53,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,566 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,570 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:53,574 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:53,596 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,596 INFO L377 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 [2020-04-17 18:43:53,597 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,608 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:53,610 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:53,632 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,632 INFO L377 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 [2020-04-17 18:43:53,633 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,656 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:53,656 INFO L377 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 [2020-04-17 18:43:53,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:53,657 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,832 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-04-17 18:43:53,833 INFO L619 ElimStorePlain]: treesize reduction 100, result has 63.1 percent of original size [2020-04-17 18:43:53,834 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-17 18:43:53,834 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:179, output treesize:83 [2020-04-17 18:43:53,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2020-04-17 18:43:53,931 INFO L377 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 [2020-04-17 18:43:53,931 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,937 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:53,943 INFO L377 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 [2020-04-17 18:43:53,943 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,951 INFO L377 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 [2020-04-17 18:43:53,951 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:53,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:53,959 INFO L377 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 [2020-04-17 18:43:53,960 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,015 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:54,016 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-17 18:43:54,016 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:143, output treesize:83 [2020-04-17 18:43:54,117 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2020-04-17 18:43:54,151 INFO L377 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 [2020-04-17 18:43:54,152 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,170 INFO L377 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 [2020-04-17 18:43:54,170 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,179 INFO L377 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 [2020-04-17 18:43:54,180 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,186 INFO L377 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 [2020-04-17 18:43:54,187 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,240 INFO L619 ElimStorePlain]: treesize reduction 15, result has 83.5 percent of original size [2020-04-17 18:43:54,240 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-04-17 18:43:54,241 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:155, output treesize:48 [2020-04-17 18:43:54,318 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-17 18:43:54,369 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:54,369 INFO L377 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 [2020-04-17 18:43:54,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:54,370 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,378 INFO L377 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 [2020-04-17 18:43:54,378 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,384 INFO L377 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 21 treesize of output 17 [2020-04-17 18:43:54,385 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,514 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-04-17 18:43:54,515 INFO L619 ElimStorePlain]: treesize reduction 22, result has 85.0 percent of original size [2020-04-17 18:43:54,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:54,517 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-17 18:43:54,517 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:121, output treesize:84 [2020-04-17 18:43:54,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-17 18:43:54,696 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:54,698 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:54,715 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:54,715 INFO L377 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 [2020-04-17 18:43:54,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:54,716 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,743 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:54,743 INFO L377 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 [2020-04-17 18:43:54,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:54,744 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,765 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:54,766 INFO L377 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 [2020-04-17 18:43:54,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:54,767 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:54,899 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-04-17 18:43:54,900 INFO L619 ElimStorePlain]: treesize reduction 75, result has 66.2 percent of original size [2020-04-17 18:43:54,900 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-04-17 18:43:54,901 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:139, output treesize:67 [2020-04-17 18:43:54,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-17 18:43:54,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:54,999 INFO L377 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 [2020-04-17 18:43:55,000 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,006 INFO L377 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 [2020-04-17 18:43:55,006 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,012 INFO L377 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 [2020-04-17 18:43:55,012 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,055 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,055 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-04-17 18:43:55,056 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:112, output treesize:67 [2020-04-17 18:43:55,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:55,187 INFO L377 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 [2020-04-17 18:43:55,188 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,212 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,220 INFO L377 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 [2020-04-17 18:43:55,221 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,245 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,245 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:55,246 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:83, output treesize:57 [2020-04-17 18:43:55,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:55,313 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:55,317 INFO L377 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 30 [2020-04-17 18:43:55,318 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,324 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:55,327 INFO L377 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 [2020-04-17 18:43:55,328 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,364 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,364 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-17 18:43:55,365 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:68 [2020-04-17 18:43:55,512 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:55,525 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,525 INFO L377 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 [2020-04-17 18:43:55,526 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,571 INFO L619 ElimStorePlain]: treesize reduction 30, result has 64.3 percent of original size [2020-04-17 18:43:55,571 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,572 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-04-17 18:43:55,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:55,635 INFO L377 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 [2020-04-17 18:43:55,635 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,652 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,653 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,653 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-04-17 18:43:55,719 INFO L377 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 [2020-04-17 18:43:55,719 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,730 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,730 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,731 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-04-17 18:43:55,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:55,780 INFO L377 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 [2020-04-17 18:43:55,781 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,796 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,796 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,797 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-04-17 18:43:55,909 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:55,921 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:55,921 INFO L377 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 [2020-04-17 18:43:55,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:55,922 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,968 INFO L619 ElimStorePlain]: treesize reduction 35, result has 63.2 percent of original size [2020-04-17 18:43:55,968 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:55,969 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-04-17 18:43:56,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:56,038 INFO L377 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 [2020-04-17 18:43:56,039 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,054 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,054 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,054 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-04-17 18:43:56,128 INFO L377 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 [2020-04-17 18:43:56,128 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,140 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,140 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,140 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-04-17 18:43:56,188 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:56,190 INFO L377 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 [2020-04-17 18:43:56,190 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,205 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,205 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,205 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-04-17 18:43:56,329 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:56,346 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,347 INFO L377 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 [2020-04-17 18:43:56,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:56,348 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,398 INFO L619 ElimStorePlain]: treesize reduction 35, result has 63.2 percent of original size [2020-04-17 18:43:56,398 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,398 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-04-17 18:43:56,470 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:56,473 INFO L377 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 [2020-04-17 18:43:56,474 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,491 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,492 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,492 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-04-17 18:43:56,623 INFO L377 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 [2020-04-17 18:43:56,624 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,636 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,636 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,637 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-04-17 18:43:56,687 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:56,687 INFO L377 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 [2020-04-17 18:43:56,688 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,701 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,701 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,702 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-04-17 18:43:56,849 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-17 18:43:56,870 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:56,870 INFO L377 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 [2020-04-17 18:43:56,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:56,871 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,923 INFO L619 ElimStorePlain]: treesize reduction 35, result has 63.2 percent of original size [2020-04-17 18:43:56,923 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:56,923 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-04-17 18:43:56,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:56,997 INFO L377 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 [2020-04-17 18:43:56,998 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,015 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:57,015 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,016 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-04-17 18:43:57,102 INFO L377 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 [2020-04-17 18:43:57,102 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,115 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:57,115 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,115 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-04-17 18:43:57,195 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:43:57,196 INFO L377 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 [2020-04-17 18:43:57,197 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,208 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:57,208 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-17 18:43:57,209 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:46, output treesize:19 [2020-04-17 18:43:57,299 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:57,300 INFO L377 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 31 treesize of output 49 [2020-04-17 18:43:57,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:57,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:57,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:43:57,303 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-04-17 18:43:57,321 INFO L619 ElimStorePlain]: treesize reduction 49, result has 35.5 percent of original size [2020-04-17 18:43:57,321 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,321 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:9 [2020-04-17 18:43:57,366 INFO L343 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-04-17 18:43:57,367 INFO L377 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 [2020-04-17 18:43:57,367 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,373 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:43:57,373 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:43:57,373 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-04-17 18:43:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 615 proven. 135 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-04-17 18:43:57,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:43:57,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 49] total 66 [2020-04-17 18:43:57,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359800050] [2020-04-17 18:43:57,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-04-17 18:43:57,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:43:57,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-04-17 18:43:57,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=678, Invalid=3612, Unknown=0, NotChecked=0, Total=4290 [2020-04-17 18:43:57,467 INFO L87 Difference]: Start difference. First operand 2338 states and 4191 transitions. Second operand 66 states. [2020-04-17 18:44:01,174 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2020-04-17 18:44:01,622 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-04-17 18:44:02,374 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2020-04-17 18:44:03,005 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-04-17 18:44:03,697 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-04-17 18:44:04,397 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-04-17 18:44:04,712 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2020-04-17 18:44:05,110 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2020-04-17 18:44:05,325 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-04-17 18:44:06,039 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-04-17 18:44:06,388 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2020-04-17 18:44:06,904 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-04-17 18:44:07,338 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-04-17 18:44:07,992 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-04-17 18:44:08,840 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:09,000 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:09,388 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:09,540 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:44:10,714 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:10,886 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:11,871 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:12,032 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:12,735 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:44:13,548 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:13,707 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:14,083 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:14,232 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:44:15,629 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:15,788 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:16,803 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:16,968 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:17,690 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:44:18,612 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:18,774 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:19,197 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:19,347 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:44:21,108 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:21,264 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:22,346 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:22,510 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:23,014 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:23,562 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:44:23,941 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:44:24,655 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:25,111 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:25,683 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:26,467 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:27,560 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:28,069 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:44:28,979 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:29,650 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:30,021 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:30,486 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-04-17 18:44:30,824 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:32,421 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:32,871 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:33,590 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:34,121 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:35,228 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:44:36,823 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:36,995 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:37,771 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:37,982 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:44:39,961 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:40,145 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:41,386 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:41,571 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:42,901 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:44:44,561 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:44,732 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:45,563 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:45,729 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:44:47,963 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:48,139 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:49,543 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:49,741 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:51,151 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:44:53,018 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:44:53,196 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:44:54,243 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:44:54,419 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:44:57,078 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:44:57,258 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:44:57,592 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-04-17 18:44:58,717 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:44:58,899 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:44:59,948 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:45:00,499 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:45:01,763 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:45:02,544 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:45:03,541 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:45:04,602 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:45:05,787 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:45:06,923 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:45:07,940 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:45:08,708 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:45:09,982 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:45:10,492 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:45:12,018 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:45:12,294 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:45:14,347 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:45:14,977 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:45:16,129 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:45:16,847 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:45:18,357 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:45:20,338 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:45:20,534 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:45:22,050 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:45:22,241 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:45:24,975 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:45:25,179 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:45:26,987 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:45:27,191 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:45:29,129 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:45:31,082 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-04-17 18:45:31,285 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-04-17 18:45:32,675 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-04-17 18:45:32,962 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-04-17 18:45:35,483 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-04-17 18:45:37,735 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-17 18:45:37,947 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-04-17 18:45:39,353 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-04-17 18:45:40,951 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-04-17 18:45:41,131 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-04-17 18:45:42,422 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2020-04-17 18:45:45,108 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-04-17 18:45:45,292 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2020-04-17 18:45:46,998 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-04-17 18:45:47,194 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-17 18:45:48,610 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-04-17 18:45:50,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:45:50,316 INFO L93 Difference]: Finished difference Result 8514 states and 15093 transitions. [2020-04-17 18:45:50,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 865 states. [2020-04-17 18:45:50,317 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 144 [2020-04-17 18:45:50,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:45:50,331 INFO L225 Difference]: With dead ends: 8514 [2020-04-17 18:45:50,332 INFO L226 Difference]: Without dead ends: 8514 [2020-04-17 18:45:50,386 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1781 GetRequests, 832 SyntacticMatches, 36 SemanticMatches, 913 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443861 ImplicationChecksByTransitivity, 104.1s TimeCoverageRelationStatistics Valid=84601, Invalid=751709, Unknown=0, NotChecked=0, Total=836310 [2020-04-17 18:45:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8514 states. [2020-04-17 18:45:50,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8514 to 4426. [2020-04-17 18:45:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4426 states. [2020-04-17 18:45:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 7766 transitions. [2020-04-17 18:45:50,477 INFO L78 Accepts]: Start accepts. Automaton has 4426 states and 7766 transitions. Word has length 144 [2020-04-17 18:45:50,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:45:50,477 INFO L479 AbstractCegarLoop]: Abstraction has 4426 states and 7766 transitions. [2020-04-17 18:45:50,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-04-17 18:45:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 4426 states and 7766 transitions. [2020-04-17 18:45:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-04-17 18:45:50,487 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:45:50,488 INFO L425 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] [2020-04-17 18:45:50,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:45:50,707 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:45:50,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:45:50,707 INFO L82 PathProgramCache]: Analyzing trace with hash -496623271, now seen corresponding path program 12 times [2020-04-17 18:45:50,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:45:50,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070312786] [2020-04-17 18:45:50,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:45:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:45:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 0 proven. 943 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:45:50,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070312786] [2020-04-17 18:45:50,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222092223] [2020-04-17 18:45:50,986 INFO L92 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