/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/distributed_search2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:36:42,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:36:42,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:36:42,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:36:42,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:36:42,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:36:42,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:36:42,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:36:42,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:36:42,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:36:42,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:36:42,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:36:42,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:36:42,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:36:42,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:36:42,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:36:42,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:36:42,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:36:42,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:36:42,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:36:42,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:36:42,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:36:42,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:36:42,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:36:42,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:36:42,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:36:42,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:36:42,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:36:42,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:36:42,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:36:42,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:36:42,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:36:42,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:36:42,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:36:42,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:36:42,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:36:42,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:36:42,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:36:42,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:36:42,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:36:42,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:36:42,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 18:36:42,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:36:42,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:36:42,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:36:42,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:36:42,299 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:36:42,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:36:42,299 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:36:42,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:36:42,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:36:42,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:36:42,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:36:42,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:36:42,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:36:42,301 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:36:42,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:36:42,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:36:42,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:36:42,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:36:42,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:36:42,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:36:42,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:36:42,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:36:42,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:36:42,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:36:42,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:36:42,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:36:42,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:36:42,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:36:42,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 18:36:42,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:36:42,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:36:42,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:36:42,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:36:42,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:36:42,593 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:36:42,593 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/distributed_search2.c [2020-04-17 18:36:42,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020b649e4/44964e4fc2ba44f79bffbc96fc304e98/FLAG9e085dc35 [2020-04-17 18:36:43,116 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:36:43,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/distributed_search2.c [2020-04-17 18:36:43,116 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-17 18:36:43,116 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-17 18:36:43,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020b649e4/44964e4fc2ba44f79bffbc96fc304e98/FLAG9e085dc35 [2020-04-17 18:36:43,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020b649e4/44964e4fc2ba44f79bffbc96fc304e98 [2020-04-17 18:36:43,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:36:43,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:36:43,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:36:43,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:36:43,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:36:43,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1280c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43, skipping insertion in model container [2020-04-17 18:36:43,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:36:43,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:36:43,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:36:43,835 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:36:43,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:36:43,868 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:36:43,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43 WrapperNode [2020-04-17 18:36:43,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:36:43,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:36:43,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:36:43,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:36:43,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:36:43,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:36:43,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:36:43,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:36:43,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (1/1) ... [2020-04-17 18:36:43,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:36:43,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:36:43,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:36:43,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:36:43,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (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 18:36:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:36:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure search_worker [2020-04-17 18:36:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure search_worker [2020-04-17 18:36:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:36:44,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:36:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-17 18:36:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 18:36:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:36:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:36:44,009 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 18:36:44,444 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:36:44,444 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-04-17 18:36:44,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:36:44 BoogieIcfgContainer [2020-04-17 18:36:44,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:36:44,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:36:44,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:36:44,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:36:44,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:36:43" (1/3) ... [2020-04-17 18:36:44,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0da833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:36:44, skipping insertion in model container [2020-04-17 18:36:44,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:36:43" (2/3) ... [2020-04-17 18:36:44,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0da833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:36:44, skipping insertion in model container [2020-04-17 18:36:44,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:36:44" (3/3) ... [2020-04-17 18:36:44,456 INFO L109 eAbstractionObserver]: Analyzing ICFG distributed_search2.c [2020-04-17 18:36:44,466 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:36:44,466 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:36:44,473 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 18:36:44,474 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:36:44,504 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,505 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,505 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,505 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,506 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,506 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,506 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,506 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,506 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,507 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,507 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,507 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,507 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,508 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,508 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,508 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,508 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,509 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,509 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,509 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,509 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,510 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,510 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,510 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,510 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,510 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,511 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,511 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,511 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,511 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,512 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,512 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,512 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,513 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,513 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,513 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,513 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,514 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,514 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,514 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,515 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,515 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,515 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,515 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,516 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,516 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,516 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,516 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,516 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,517 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,517 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,517 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,517 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,518 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,518 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,518 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,518 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,518 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,519 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,519 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,519 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,519 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,520 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,520 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,520 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,520 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,521 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,521 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,521 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,521 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,522 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,522 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,522 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,523 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,523 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,523 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,523 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,523 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,524 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,524 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,527 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,528 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,528 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,528 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,528 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,529 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,529 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,529 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,529 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,530 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,530 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,530 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,530 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,537 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,537 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,537 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,538 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,538 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,538 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,538 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,539 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,539 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,539 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,539 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,540 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,540 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:36:44,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-17 18:36:44,582 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:36:44,582 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:36:44,582 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:36:44,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:36:44,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:36:44,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:36:44,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:36:44,583 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:36:44,601 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 138 transitions, 298 flow [2020-04-17 18:36:44,603 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 135 places, 138 transitions, 298 flow [2020-04-17 18:36:44,689 INFO L129 PetriNetUnfolder]: 9/138 cut-off events. [2020-04-17 18:36:44,690 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 18:36:44,697 INFO L80 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 138 events. 9/138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 159 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2020-04-17 18:36:44,702 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 135 places, 138 transitions, 298 flow [2020-04-17 18:36:44,738 INFO L129 PetriNetUnfolder]: 9/138 cut-off events. [2020-04-17 18:36:44,739 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 18:36:44,740 INFO L80 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 138 events. 9/138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 159 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2020-04-17 18:36:44,743 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1920 [2020-04-17 18:36:44,744 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:36:47,014 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-04-17 18:36:47,116 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-04-17 18:36:47,579 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-04-17 18:36:47,943 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-04-17 18:36:47,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:48,080 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-04-17 18:36:48,576 WARN L192 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-04-17 18:36:48,760 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-04-17 18:36:48,977 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-04-17 18:36:49,176 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-04-17 18:36:49,186 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2649 [2020-04-17 18:36:49,186 INFO L214 etLargeBlockEncoding]: Total number of compositions: 121 [2020-04-17 18:36:49,190 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 30 transitions, 82 flow [2020-04-17 18:36:49,205 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 126 states. [2020-04-17 18:36:49,207 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2020-04-17 18:36:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 18:36:49,217 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:49,217 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:49,218 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:36:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:49,224 INFO L82 PathProgramCache]: Analyzing trace with hash -878946956, now seen corresponding path program 1 times [2020-04-17 18:36:49,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:49,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352614580] [2020-04-17 18:36:49,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:49,443 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 18:36:49,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352614580] [2020-04-17 18:36:49,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:49,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 18:36:49,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467289957] [2020-04-17 18:36:49,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:36:49,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:49,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:36:49,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:36:49,472 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 5 states. [2020-04-17 18:36:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:49,641 INFO L93 Difference]: Finished difference Result 126 states and 313 transitions. [2020-04-17 18:36:49,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:36:49,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-17 18:36:49,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:49,664 INFO L225 Difference]: With dead ends: 126 [2020-04-17 18:36:49,664 INFO L226 Difference]: Without dead ends: 104 [2020-04-17 18:36:49,666 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:36:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-04-17 18:36:49,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-04-17 18:36:49,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-04-17 18:36:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 267 transitions. [2020-04-17 18:36:49,746 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 267 transitions. Word has length 16 [2020-04-17 18:36:49,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:49,750 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 267 transitions. [2020-04-17 18:36:49,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:36:49,750 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 267 transitions. [2020-04-17 18:36:49,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 18:36:49,754 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:49,754 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:36:49,754 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:36:49,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:49,755 INFO L82 PathProgramCache]: Analyzing trace with hash 351436872, now seen corresponding path program 1 times [2020-04-17 18:36:49,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:49,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601602513] [2020-04-17 18:36:49,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:49,933 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 18:36:49,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601602513] [2020-04-17 18:36:49,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:36:49,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 18:36:49,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221138806] [2020-04-17 18:36:49,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:36:49,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:49,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:36:49,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:36:49,936 INFO L87 Difference]: Start difference. First operand 104 states and 267 transitions. Second operand 3 states. [2020-04-17 18:36:49,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:49,962 INFO L93 Difference]: Finished difference Result 170 states and 444 transitions. [2020-04-17 18:36:49,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:36:49,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-04-17 18:36:49,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:49,965 INFO L225 Difference]: With dead ends: 170 [2020-04-17 18:36:49,965 INFO L226 Difference]: Without dead ends: 163 [2020-04-17 18:36:49,966 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:36:49,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-04-17 18:36:49,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 140. [2020-04-17 18:36:49,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-17 18:36:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 372 transitions. [2020-04-17 18:36:49,979 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 372 transitions. Word has length 16 [2020-04-17 18:36:49,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:49,979 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 372 transitions. [2020-04-17 18:36:49,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:36:49,980 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 372 transitions. [2020-04-17 18:36:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:36:49,981 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:49,982 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 18:36:49,982 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:36:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:49,982 INFO L82 PathProgramCache]: Analyzing trace with hash 443469900, now seen corresponding path program 1 times [2020-04-17 18:36:49,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:49,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301672489] [2020-04-17 18:36:49,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:50,161 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 18:36:50,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301672489] [2020-04-17 18:36:50,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691224782] [2020-04-17 18:36:50,162 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 18:36:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:50,263 INFO L264 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 29 conjunts are in the unsatisfiable core [2020-04-17 18:36:50,269 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:36:50,324 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 18:36:50,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:36:50,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-04-17 18:36:50,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462455981] [2020-04-17 18:36:50,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-17 18:36:50,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:50,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-17 18:36:50,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:36:50,333 INFO L87 Difference]: Start difference. First operand 140 states and 372 transitions. Second operand 8 states. [2020-04-17 18:36:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:36:50,548 INFO L93 Difference]: Finished difference Result 202 states and 539 transitions. [2020-04-17 18:36:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:36:50,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-04-17 18:36:50,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:36:50,550 INFO L225 Difference]: With dead ends: 202 [2020-04-17 18:36:50,550 INFO L226 Difference]: Without dead ends: 158 [2020-04-17 18:36:50,551 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-04-17 18:36:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-04-17 18:36:50,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 110. [2020-04-17 18:36:50,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-04-17 18:36:50,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 290 transitions. [2020-04-17 18:36:50,559 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 290 transitions. Word has length 19 [2020-04-17 18:36:50,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:36:50,560 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 290 transitions. [2020-04-17 18:36:50,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-17 18:36:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 290 transitions. [2020-04-17 18:36:50,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-04-17 18:36:50,561 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:36:50,561 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] [2020-04-17 18:36:50,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:36:50,765 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:36:50,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:36:50,765 INFO L82 PathProgramCache]: Analyzing trace with hash -799546606, now seen corresponding path program 1 times [2020-04-17 18:36:50,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:36:50,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160005680] [2020-04-17 18:36:50,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:36:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:51,725 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 18:36:51,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160005680] [2020-04-17 18:36:51,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471188967] [2020-04-17 18:36:51,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:36:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:36:51,787 INFO L264 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 66 conjunts are in the unsatisfiable core [2020-04-17 18:36:51,790 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:36:51,856 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:36:51,857 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 241 treesize of output 243 [2020-04-17 18:36:51,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:36:51,906 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:36:52,228 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 39 [2020-04-17 18:36:52,229 INFO L619 ElimStorePlain]: treesize reduction 2455, result has 2.3 percent of original size [2020-04-17 18:36:52,245 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-04-17 18:36:52,246 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:36:52,274 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:36:52,275 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-17 18:36:52,276 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:54 [2020-04-17 18:36:52,406 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2020-04-17 18:36:52,407 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:36:52,431 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:36:52,432 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-04-17 18:36:52,432 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:65, output treesize:61 [2020-04-17 18:36:52,843 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 18:36:52,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:36:52,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 19 [2020-04-17 18:36:52,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355528934] [2020-04-17 18:36:52,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-17 18:36:52,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:36:52,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-17 18:36:52,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-04-17 18:36:52,845 INFO L87 Difference]: Start difference. First operand 110 states and 290 transitions. Second operand 20 states. [2020-04-17 18:36:53,018 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2020-04-17 18:36:53,340 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2020-04-17 18:36:53,618 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2020-04-17 18:36:53,957 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 97 [2020-04-17 18:36:54,278 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 98 [2020-04-17 18:36:54,691 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 102 [2020-04-17 18:36:55,055 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-04-17 18:36:55,467 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2020-04-17 18:36:55,943 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2020-04-17 18:36:56,327 WARN L192 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 106 [2020-04-17 18:36:56,827 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 105 [2020-04-17 18:36:57,449 WARN L192 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 124 [2020-04-17 18:36:57,946 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2020-04-17 18:36:58,435 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 110 [2020-04-17 18:36:58,953 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2020-04-17 18:36:59,239 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-04-17 18:36:59,560 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 104 [2020-04-17 18:37:00,239 WARN L192 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 131 [2020-04-17 18:37:00,824 WARN L192 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 117 [2020-04-17 18:37:01,437 WARN L192 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 110 [2020-04-17 18:37:01,990 WARN L192 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 128 [2020-04-17 18:37:02,348 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 101 [2020-04-17 18:37:02,822 WARN L192 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 119 [2020-04-17 18:37:03,469 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 95 [2020-04-17 18:37:04,052 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 115 [2020-04-17 18:37:04,712 WARN L192 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 131 [2020-04-17 18:37:05,324 WARN L192 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 117 [2020-04-17 18:37:05,881 WARN L192 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 125 [2020-04-17 18:37:06,634 WARN L192 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 126 [2020-04-17 18:37:07,179 WARN L192 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 91 [2020-04-17 18:37:07,812 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 100 [2020-04-17 18:37:08,519 WARN L192 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 122 [2020-04-17 18:37:09,423 WARN L192 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 136 [2020-04-17 18:37:10,128 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 128 [2020-04-17 18:37:10,609 WARN L192 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 116 [2020-04-17 18:37:11,154 WARN L192 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 117 [2020-04-17 18:37:11,941 WARN L192 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 133 [2020-04-17 18:37:12,841 WARN L192 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 108 [2020-04-17 18:37:13,450 WARN L192 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 122 [2020-04-17 18:37:14,288 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 100 [2020-04-17 18:37:15,933 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 103 [2020-04-17 18:37:16,413 WARN L192 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 94 [2020-04-17 18:37:16,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:16,664 INFO L93 Difference]: Finished difference Result 932 states and 2605 transitions. [2020-04-17 18:37:16,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-04-17 18:37:16,665 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2020-04-17 18:37:16,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:16,673 INFO L225 Difference]: With dead ends: 932 [2020-04-17 18:37:16,674 INFO L226 Difference]: Without dead ends: 716 [2020-04-17 18:37:16,675 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=1083, Invalid=2823, Unknown=0, NotChecked=0, Total=3906 [2020-04-17 18:37:16,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-04-17 18:37:16,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 161. [2020-04-17 18:37:16,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-04-17 18:37:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 432 transitions. [2020-04-17 18:37:16,713 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 432 transitions. Word has length 20 [2020-04-17 18:37:16,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:16,713 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 432 transitions. [2020-04-17 18:37:16,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-17 18:37:16,713 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 432 transitions. [2020-04-17 18:37:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-04-17 18:37:16,715 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:16,715 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] [2020-04-17 18:37:16,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:37:16,928 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:16,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:16,929 INFO L82 PathProgramCache]: Analyzing trace with hash 914665954, now seen corresponding path program 2 times [2020-04-17 18:37:16,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:16,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768089407] [2020-04-17 18:37:16,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:17,586 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 18:37:17,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768089407] [2020-04-17 18:37:17,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:17,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-17 18:37:17,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049208165] [2020-04-17 18:37:17,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-17 18:37:17,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:17,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-17 18:37:17,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-04-17 18:37:17,588 INFO L87 Difference]: Start difference. First operand 161 states and 432 transitions. Second operand 10 states. [2020-04-17 18:37:18,004 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-04-17 18:37:18,355 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-04-17 18:37:18,792 WARN L192 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-04-17 18:37:19,300 WARN L192 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-04-17 18:37:19,922 WARN L192 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2020-04-17 18:37:20,090 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-04-17 18:37:20,453 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-04-17 18:37:20,915 WARN L192 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-04-17 18:37:21,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:21,122 INFO L93 Difference]: Finished difference Result 384 states and 1061 transitions. [2020-04-17 18:37:21,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-17 18:37:21,123 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-04-17 18:37:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:21,127 INFO L225 Difference]: With dead ends: 384 [2020-04-17 18:37:21,127 INFO L226 Difference]: Without dead ends: 360 [2020-04-17 18:37:21,127 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2020-04-17 18:37:21,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-04-17 18:37:21,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 161. [2020-04-17 18:37:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-04-17 18:37:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 432 transitions. [2020-04-17 18:37:21,136 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 432 transitions. Word has length 20 [2020-04-17 18:37:21,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:21,136 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 432 transitions. [2020-04-17 18:37:21,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-17 18:37:21,137 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 432 transitions. [2020-04-17 18:37:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-04-17 18:37:21,138 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:21,138 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] [2020-04-17 18:37:21,138 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:21,138 INFO L82 PathProgramCache]: Analyzing trace with hash -142461116, now seen corresponding path program 3 times [2020-04-17 18:37:21,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:21,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362768786] [2020-04-17 18:37:21,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:21,763 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 18:37:21,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362768786] [2020-04-17 18:37:21,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:21,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-17 18:37:21,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357157155] [2020-04-17 18:37:21,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-17 18:37:21,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:21,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-17 18:37:21,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-04-17 18:37:21,765 INFO L87 Difference]: Start difference. First operand 161 states and 432 transitions. Second operand 10 states. [2020-04-17 18:37:22,016 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-04-17 18:37:22,189 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-04-17 18:37:22,424 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-04-17 18:37:22,695 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-04-17 18:37:23,236 WARN L192 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2020-04-17 18:37:23,801 WARN L192 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 122 [2020-04-17 18:37:24,088 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-04-17 18:37:24,362 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-04-17 18:37:24,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:24,491 INFO L93 Difference]: Finished difference Result 371 states and 1022 transitions. [2020-04-17 18:37:24,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-17 18:37:24,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-04-17 18:37:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:24,494 INFO L225 Difference]: With dead ends: 371 [2020-04-17 18:37:24,494 INFO L226 Difference]: Without dead ends: 355 [2020-04-17 18:37:24,495 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:37:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-04-17 18:37:24,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 167. [2020-04-17 18:37:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-04-17 18:37:24,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 445 transitions. [2020-04-17 18:37:24,503 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 445 transitions. Word has length 20 [2020-04-17 18:37:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:24,503 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 445 transitions. [2020-04-17 18:37:24,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-17 18:37:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 445 transitions. [2020-04-17 18:37:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-04-17 18:37:24,504 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:24,504 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] [2020-04-17 18:37:24,505 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:24,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:24,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1109913052, now seen corresponding path program 4 times [2020-04-17 18:37:24,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:24,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753860861] [2020-04-17 18:37:24,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:24,692 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-04-17 18:37:25,167 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 18:37:25,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753860861] [2020-04-17 18:37:25,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:25,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-17 18:37:25,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026656155] [2020-04-17 18:37:25,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-17 18:37:25,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:25,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-17 18:37:25,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-04-17 18:37:25,169 INFO L87 Difference]: Start difference. First operand 167 states and 445 transitions. Second operand 10 states. [2020-04-17 18:37:25,408 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-04-17 18:37:25,576 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-04-17 18:37:25,800 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-04-17 18:37:26,084 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-04-17 18:37:26,614 WARN L192 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2020-04-17 18:37:27,119 WARN L192 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 115 [2020-04-17 18:37:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:27,320 INFO L93 Difference]: Finished difference Result 319 states and 874 transitions. [2020-04-17 18:37:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-17 18:37:27,321 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-04-17 18:37:27,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:27,325 INFO L225 Difference]: With dead ends: 319 [2020-04-17 18:37:27,325 INFO L226 Difference]: Without dead ends: 319 [2020-04-17 18:37:27,325 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-04-17 18:37:27,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-04-17 18:37:27,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 171. [2020-04-17 18:37:27,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-04-17 18:37:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 461 transitions. [2020-04-17 18:37:27,333 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 461 transitions. Word has length 20 [2020-04-17 18:37:27,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:27,333 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 461 transitions. [2020-04-17 18:37:27,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-17 18:37:27,334 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 461 transitions. [2020-04-17 18:37:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-04-17 18:37:27,334 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:27,335 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] [2020-04-17 18:37:27,335 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:27,335 INFO L82 PathProgramCache]: Analyzing trace with hash 639184670, now seen corresponding path program 5 times [2020-04-17 18:37:27,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:27,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766242116] [2020-04-17 18:37:27,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:27,543 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 18:37:27,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766242116] [2020-04-17 18:37:27,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026497407] [2020-04-17 18:37:27,544 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 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 18:37:27,601 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-17 18:37:27,601 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:37:27,603 INFO L264 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 59 conjunts are in the unsatisfiable core [2020-04-17 18:37:27,605 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:37:27,623 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:27,624 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 19 treesize of output 34 [2020-04-17 18:37:27,624 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:27,653 INFO L619 ElimStorePlain]: treesize reduction 16, result has 65.2 percent of original size [2020-04-17 18:37:27,654 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-17 18:37:27,654 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:30 [2020-04-17 18:37:27,716 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 15 treesize of output 7 [2020-04-17 18:37:27,717 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:27,725 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:27,725 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 18:37:27,725 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:16 [2020-04-17 18:37:27,745 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 18:37:27,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:37:27,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-04-17 18:37:27,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143009281] [2020-04-17 18:37:27,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-17 18:37:27,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:27,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-17 18:37:27,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-04-17 18:37:27,748 INFO L87 Difference]: Start difference. First operand 171 states and 461 transitions. Second operand 10 states. [2020-04-17 18:37:28,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:28,462 INFO L93 Difference]: Finished difference Result 385 states and 1040 transitions. [2020-04-17 18:37:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-17 18:37:28,462 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-04-17 18:37:28,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:28,465 INFO L225 Difference]: With dead ends: 385 [2020-04-17 18:37:28,466 INFO L226 Difference]: Without dead ends: 367 [2020-04-17 18:37:28,466 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-04-17 18:37:28,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-04-17 18:37:28,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 176. [2020-04-17 18:37:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-04-17 18:37:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 483 transitions. [2020-04-17 18:37:28,477 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 483 transitions. Word has length 20 [2020-04-17 18:37:28,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:28,479 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 483 transitions. [2020-04-17 18:37:28,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-17 18:37:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 483 transitions. [2020-04-17 18:37:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-04-17 18:37:28,480 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:28,480 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] [2020-04-17 18:37:28,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:37:28,684 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:28,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:28,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2064989212, now seen corresponding path program 6 times [2020-04-17 18:37:28,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:28,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998260437] [2020-04-17 18:37:28,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:28,990 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 18:37:28,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998260437] [2020-04-17 18:37:28,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880290039] [2020-04-17 18:37:28,991 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 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 18:37:29,042 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2020-04-17 18:37:29,042 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:37:29,043 INFO L264 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 63 conjunts are in the unsatisfiable core [2020-04-17 18:37:29,045 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:37:29,094 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:29,095 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 169 treesize of output 179 [2020-04-17 18:37:29,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,103 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,106 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,116 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,117 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,119 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:29,137 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:29,340 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 41 [2020-04-17 18:37:29,341 INFO L619 ElimStorePlain]: treesize reduction 1448, result has 3.9 percent of original size [2020-04-17 18:37:29,347 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-04-17 18:37:29,348 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:29,373 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:29,374 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-17 18:37:29,374 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:76, output treesize:54 [2020-04-17 18:37:29,583 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2020-04-17 18:37:29,584 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:29,607 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:29,608 INFO L539 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-04-17 18:37:29,608 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:71, output treesize:67 [2020-04-17 18:37:29,709 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 18:37:29,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:37:29,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-04-17 18:37:29,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332990685] [2020-04-17 18:37:29,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-17 18:37:29,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:29,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-17 18:37:29,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-04-17 18:37:29,711 INFO L87 Difference]: Start difference. First operand 176 states and 483 transitions. Second operand 16 states. [2020-04-17 18:37:30,831 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-04-17 18:37:31,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:31,190 INFO L93 Difference]: Finished difference Result 311 states and 847 transitions. [2020-04-17 18:37:31,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-17 18:37:31,190 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-04-17 18:37:31,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:31,192 INFO L225 Difference]: With dead ends: 311 [2020-04-17 18:37:31,192 INFO L226 Difference]: Without dead ends: 292 [2020-04-17 18:37:31,192 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-04-17 18:37:31,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-04-17 18:37:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 178. [2020-04-17 18:37:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-04-17 18:37:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 487 transitions. [2020-04-17 18:37:31,199 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 487 transitions. Word has length 20 [2020-04-17 18:37:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:31,199 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 487 transitions. [2020-04-17 18:37:31,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-17 18:37:31,199 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 487 transitions. [2020-04-17 18:37:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-17 18:37:31,200 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:31,200 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:37:31,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:37:31,405 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:31,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:31,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1925925886, now seen corresponding path program 1 times [2020-04-17 18:37:31,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:31,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909795421] [2020-04-17 18:37:31,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:31,711 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-04-17 18:37:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:32,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909795421] [2020-04-17 18:37:32,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365442736] [2020-04-17 18:37:32,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 18:37:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:32,327 INFO L264 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 63 conjunts are in the unsatisfiable core [2020-04-17 18:37:32,329 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:37:32,351 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:32,352 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 67 [2020-04-17 18:37:32,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,355 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-04-17 18:37:32,446 INFO L619 ElimStorePlain]: treesize reduction 109, result has 31.4 percent of original size [2020-04-17 18:37:32,454 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-04-17 18:37:32,455 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:32,476 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:32,477 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-17 18:37:32,477 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:62, output treesize:46 [2020-04-17 18:37:32,586 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:32,587 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 52 [2020-04-17 18:37:32,588 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:32,651 INFO L619 ElimStorePlain]: treesize reduction 16, result has 79.2 percent of original size [2020-04-17 18:37:32,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,653 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-04-17 18:37:32,653 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:57, output treesize:61 [2020-04-17 18:37:32,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,709 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:32,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:35,527 WARN L192 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 62 [2020-04-17 18:37:35,711 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-04-17 18:37:36,154 WARN L192 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-04-17 18:37:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:36,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:37:36,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 20 [2020-04-17 18:37:36,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289879823] [2020-04-17 18:37:36,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-04-17 18:37:36,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:36,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-04-17 18:37:36,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2020-04-17 18:37:36,182 INFO L87 Difference]: Start difference. First operand 178 states and 487 transitions. Second operand 21 states. [2020-04-17 18:37:36,375 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-04-17 18:37:36,585 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-04-17 18:37:36,875 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2020-04-17 18:37:37,252 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 112 [2020-04-17 18:37:37,674 WARN L192 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2020-04-17 18:37:38,168 WARN L192 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2020-04-17 18:37:38,708 WARN L192 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 121 [2020-04-17 18:37:39,426 WARN L192 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 131 [2020-04-17 18:37:40,087 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 134 [2020-04-17 18:37:40,707 WARN L192 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 129 [2020-04-17 18:37:41,523 WARN L192 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 144 [2020-04-17 18:37:42,342 WARN L192 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 142 [2020-04-17 18:37:43,128 WARN L192 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 157 [2020-04-17 18:37:44,081 WARN L192 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2020-04-17 18:37:44,899 WARN L192 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-04-17 18:37:45,691 WARN L192 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 147 [2020-04-17 18:37:46,590 WARN L192 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 165 [2020-04-17 18:37:47,498 WARN L192 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-04-17 18:37:48,065 WARN L192 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 119 [2020-04-17 18:37:48,981 WARN L192 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 161 [2020-04-17 18:37:49,959 WARN L192 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 156 [2020-04-17 18:37:50,614 WARN L192 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 132 [2020-04-17 18:37:51,640 WARN L192 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 140 [2020-04-17 18:37:52,224 WARN L192 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 141 [2020-04-17 18:37:53,113 WARN L192 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 169 [2020-04-17 18:37:53,912 WARN L192 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 140 [2020-04-17 18:37:55,108 WARN L192 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 153 [2020-04-17 18:37:55,857 WARN L192 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 154 [2020-04-17 18:37:56,549 WARN L192 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 146 [2020-04-17 18:37:57,842 WARN L192 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 166 [2020-04-17 18:37:58,395 WARN L192 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 141 [2020-04-17 18:37:59,048 WARN L192 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 146 [2020-04-17 18:37:59,821 WARN L192 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 162 [2020-04-17 18:38:00,987 WARN L192 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 161 [2020-04-17 18:38:01,845 WARN L192 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 159 [2020-04-17 18:38:02,539 WARN L192 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 146 [2020-04-17 18:38:02,943 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2020-04-17 18:38:04,140 WARN L192 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 174 [2020-04-17 18:38:05,123 WARN L192 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 167 [2020-04-17 18:38:05,907 WARN L192 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 164 [2020-04-17 18:38:06,845 WARN L192 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 172 [2020-04-17 18:38:07,817 WARN L192 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 167 [2020-04-17 18:38:08,621 WARN L192 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 159 [2020-04-17 18:38:09,090 WARN L192 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 127 [2020-04-17 18:38:10,258 WARN L192 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-04-17 18:38:11,134 WARN L192 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 174 [2020-04-17 18:38:11,895 WARN L192 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 131 [2020-04-17 18:38:12,411 WARN L192 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 135 [2020-04-17 18:38:13,171 WARN L192 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 167 [2020-04-17 18:38:14,325 WARN L192 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 169 [2020-04-17 18:38:15,099 WARN L192 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 137 [2020-04-17 18:38:15,849 WARN L192 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 157 [2020-04-17 18:38:17,132 WARN L192 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-04-17 18:38:17,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:38:17,146 INFO L93 Difference]: Finished difference Result 1124 states and 3198 transitions. [2020-04-17 18:38:17,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-04-17 18:38:17,146 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 22 [2020-04-17 18:38:17,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:38:17,153 INFO L225 Difference]: With dead ends: 1124 [2020-04-17 18:38:17,153 INFO L226 Difference]: Without dead ends: 1010 [2020-04-17 18:38:17,155 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 10 SyntacticMatches, 5 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 38.9s TimeCoverageRelationStatistics Valid=1098, Invalid=4304, Unknown=0, NotChecked=0, Total=5402 [2020-04-17 18:38:17,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-04-17 18:38:17,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 225. [2020-04-17 18:38:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-04-17 18:38:17,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 612 transitions. [2020-04-17 18:38:17,170 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 612 transitions. Word has length 22 [2020-04-17 18:38:17,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:38:17,170 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 612 transitions. [2020-04-17 18:38:17,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-04-17 18:38:17,170 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 612 transitions. [2020-04-17 18:38:17,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-17 18:38:17,171 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:38:17,171 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:38:17,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:38:17,375 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:38:17,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:38:17,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1347682740, now seen corresponding path program 2 times [2020-04-17 18:38:17,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:38:17,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655128361] [2020-04-17 18:38:17,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:38:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:38:18,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:38:18,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655128361] [2020-04-17 18:38:18,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075709653] [2020-04-17 18:38:18,142 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 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 18:38:18,209 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-17 18:38:18,210 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-17 18:38:18,211 INFO L264 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 59 conjunts are in the unsatisfiable core [2020-04-17 18:38:18,216 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:38:18,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,360 INFO L343 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2020-04-17 18:38:18,361 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 238 treesize of output 258 [2020-04-17 18:38:18,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,367 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:18,516 INFO L343 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2020-04-17 18:38:18,517 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 238 treesize of output 258 [2020-04-17 18:38:18,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,522 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:18,675 INFO L343 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2020-04-17 18:38:18,675 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 238 treesize of output 258 [2020-04-17 18:38:18,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:18,685 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:19,279 WARN L192 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2020-04-17 18:38:19,280 INFO L619 ElimStorePlain]: treesize reduction 1364, result has 17.1 percent of original size [2020-04-17 18:38:19,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:19,327 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-04-17 18:38:19,328 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:19,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:19,344 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2020-04-17 18:38:19,345 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:19,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:19,357 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-04-17 18:38:19,358 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:19,502 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-04-17 18:38:19,503 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:19,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:19,506 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:19,508 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2020-04-17 18:38:19,508 INFO L239 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:258, output treesize:270 [2020-04-17 18:38:19,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:19,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:19,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:19,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:19,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:19,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-17 18:38:22,639 WARN L192 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-04-17 18:38:24,993 WARN L192 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 238 [2020-04-17 18:38:24,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:24,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 12 terms [2020-04-17 18:38:25,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 12 terms [2020-04-17 18:38:25,006 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,006 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:25,114 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,115 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,116 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,184 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,185 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,186 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,302 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,303 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 31 treesize of output 107 [2020-04-17 18:38:25,304 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,422 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,422 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 31 treesize of output 107 [2020-04-17 18:38:25,423 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,489 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,490 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,490 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,562 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,562 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,563 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,654 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,654 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,655 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,683 WARN L227 Elim1Store]: Array PQE input equivalent to false [2020-04-17 18:38:25,683 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,693 WARN L227 Elim1Store]: Array PQE input equivalent to false [2020-04-17 18:38:25,694 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,764 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,765 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,766 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,849 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,849 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,850 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:25,934 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:25,934 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:25,935 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,006 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,006 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:26,007 INFO L539 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,079 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,079 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:26,080 INFO L539 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,196 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,196 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 31 treesize of output 107 [2020-04-17 18:38:26,197 INFO L539 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,210 WARN L227 Elim1Store]: Array PQE input equivalent to false [2020-04-17 18:38:26,210 INFO L539 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,290 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,291 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:26,292 INFO L539 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,362 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,362 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:26,363 INFO L539 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,486 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,487 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 31 treesize of output 107 [2020-04-17 18:38:26,487 INFO L539 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,555 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,555 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:26,556 INFO L539 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,625 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,626 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:26,626 INFO L539 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,695 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,696 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2020-04-17 18:38:26,697 INFO L539 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,713 WARN L227 Elim1Store]: Array PQE input equivalent to false [2020-04-17 18:38:26,713 INFO L539 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:26,805 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:26,806 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 31 treesize of output 107 [2020-04-17 18:38:26,806 INFO L539 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:28,799 WARN L192 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 248 DAG size of output: 239 [2020-04-17 18:38:28,799 INFO L619 ElimStorePlain]: treesize reduction 922, result has 59.3 percent of original size [2020-04-17 18:38:28,817 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:28,819 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:28,866 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:28,866 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:28,867 INFO L539 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:28,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:28,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:28,926 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:28,926 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 97 [2020-04-17 18:38:28,927 INFO L539 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:28,941 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:28,944 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:28,989 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:28,989 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 97 [2020-04-17 18:38:28,990 INFO L539 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,054 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,054 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:29,055 INFO L539 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,070 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,117 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,117 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 97 [2020-04-17 18:38:29,118 INFO L539 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,133 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,135 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,181 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,182 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:29,183 INFO L539 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,201 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,202 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,254 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,255 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:29,255 INFO L539 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,277 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,278 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,329 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,329 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:29,330 INFO L539 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,346 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,348 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,401 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,402 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:29,402 INFO L539 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,468 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,469 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:29,470 INFO L539 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,485 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,487 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,534 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,534 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 93 [2020-04-17 18:38:29,535 INFO L539 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:29,559 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-17 18:38:29,590 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:38:29,590 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 97 [2020-04-17 18:38:29,591 INFO L539 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2020-04-17 18:38:31,499 WARN L192 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 327 DAG size of output: 282 [2020-04-17 18:38:31,500 INFO L619 ElimStorePlain]: treesize reduction 192, result has 87.9 percent of original size [2020-04-17 18:38:31,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,505 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,506 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,507 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,514 INFO L539 ElimStorePlain]: Start of recursive call 1: 33 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 57 dim-0 vars, and 12 xjuncts. [2020-04-17 18:38:31,515 INFO L239 ElimStorePlain]: Needed 37 recursive calls to eliminate 35 variables, input treesize:2889, output treesize:1270 [2020-04-17 18:38:31,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:31,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:51,538 WARN L192 SmtUtils]: Spent 19.79 s on a formula simplification. DAG size of input: 446 DAG size of output: 96 [2020-04-17 18:38:51,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:38:51,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:39:12,036 WARN L192 SmtUtils]: Spent 20.38 s on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2020-04-17 18:39:12,040 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:39:24,244 WARN L192 SmtUtils]: Spent 12.12 s on a formula simplification that was a NOOP. DAG size: 75 [2020-04-17 18:39:24,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:39:24,259 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2020-04-17 18:39:24,260 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:39:24,319 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:39:24,323 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 36 [2020-04-17 18:39:24,324 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:39:24,367 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:39:24,368 INFO L539 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-04-17 18:39:24,368 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 12 variables, input treesize:179, output treesize:53 [2020-04-17 18:39:26,457 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 32 [2020-04-17 18:39:28,561 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 36 [2020-04-17 18:39:28,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:39:30,663 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 36 [2020-04-17 18:39:30,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:39:30,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:39:30,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:39:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:39:30,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:39:30,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2020-04-17 18:39:30,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21743719] [2020-04-17 18:39:30,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-04-17 18:39:30,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:39:30,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-04-17 18:39:30,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-04-17 18:39:30,807 INFO L87 Difference]: Start difference. First operand 225 states and 612 transitions. Second operand 22 states. [2020-04-17 18:39:31,106 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2020-04-17 18:39:31,587 WARN L192 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 117 [2020-04-17 18:39:32,554 WARN L192 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 139 [2020-04-17 18:40:04,061 WARN L192 SmtUtils]: Spent 31.20 s on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2020-04-17 18:40:37,015 WARN L192 SmtUtils]: Spent 32.71 s on a formula simplification. DAG size of input: 203 DAG size of output: 129 Received shutdown request... [2020-04-17 18:41:18,767 WARN L209 SmtUtils]: Removed 6 from assertion stack [2020-04-17 18:41:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-17 18:41:18,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:41:18,969 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-17 18:41:18,973 WARN L228 ceAbstractionStarter]: Timeout [2020-04-17 18:41:18,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:41:18 BasicIcfg [2020-04-17 18:41:18,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:41:18,975 INFO L168 Benchmark]: Toolchain (without parser) took 275468.80 ms. Allocated memory was 136.3 MB in the beginning and 305.1 MB in the end (delta: 168.8 MB). Free memory was 99.2 MB in the beginning and 266.5 MB in the end (delta: -167.3 MB). Peak memory consumption was 205.2 MB. Max. memory is 7.1 GB. [2020-04-17 18:41:18,975 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 18:41:18,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.46 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 97.4 MB in the beginning and 174.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:41:18,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.77 ms. Allocated memory is still 199.8 MB. Free memory was 174.9 MB in the beginning and 172.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 18:41:18,976 INFO L168 Benchmark]: Boogie Preprocessor took 26.82 ms. Allocated memory is still 199.8 MB. Free memory was 172.9 MB in the beginning and 171.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-04-17 18:41:18,976 INFO L168 Benchmark]: RCFGBuilder took 509.12 ms. Allocated memory is still 199.8 MB. Free memory was 171.9 MB in the beginning and 145.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-04-17 18:41:18,977 INFO L168 Benchmark]: TraceAbstraction took 274523.97 ms. Allocated memory was 199.8 MB in the beginning and 305.1 MB in the end (delta: 105.4 MB). Free memory was 145.5 MB in the beginning and 266.5 MB in the end (delta: -121.0 MB). Peak memory consumption was 188.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:41:18,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 339.46 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 97.4 MB in the beginning and 174.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.77 ms. Allocated memory is still 199.8 MB. Free memory was 174.9 MB in the beginning and 172.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.82 ms. Allocated memory is still 199.8 MB. Free memory was 172.9 MB in the beginning and 171.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 509.12 ms. Allocated memory is still 199.8 MB. Free memory was 171.9 MB in the beginning and 145.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 274523.97 ms. Allocated memory was 199.8 MB in the beginning and 305.1 MB in the end (delta: 105.4 MB). Free memory was 145.5 MB in the beginning and 266.5 MB in the end (delta: -121.0 MB). Peak memory consumption was 188.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.5s, 135 ProgramPointsBefore, 31 ProgramPointsAfterwards, 138 TransitionsBefore, 30 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 1032 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2649 CheckedPairsTotal, 121 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 67). Cancelled while BasicCegarLoop was constructing difference of abstraction (225states) and FLOYD_HOARE automaton (currently 9 states, 22 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 242 for 41423ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 274.3s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 183.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 332 SDtfs, 2140 SDslu, 1261 SDs, 0 SdLazy, 4827 SolverSat, 309 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 80 SyntacticMatches, 15 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2027 ImplicationChecksByTransitivity, 201.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 2251 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 83.4s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 321 ConstructedInterpolants, 70 QuantifiedInterpolants, 263520 SizeOfPredicates, 134 NumberOfNonLiveVariables, 982 ConjunctsInSsa, 339 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 10/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown