/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 09:29:00,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 09:29:00,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 09:29:00,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 09:29:00,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 09:29:00,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 09:29:00,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 09:29:00,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 09:29:00,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 09:29:00,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 09:29:00,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 09:29:00,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 09:29:00,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 09:29:00,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 09:29:00,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 09:29:00,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 09:29:00,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 09:29:00,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 09:29:00,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 09:29:00,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 09:29:00,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 09:29:00,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 09:29:00,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 09:29:00,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 09:29:00,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 09:29:00,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 09:29:00,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 09:29:00,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 09:29:00,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 09:29:00,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 09:29:00,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 09:29:00,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 09:29:00,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 09:29:00,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 09:29:00,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 09:29:00,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 09:29:00,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 09:29:00,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 09:29:00,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 09:29:00,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 09:29:00,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 09:29:00,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2021-03-11 09:29:00,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 09:29:00,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 09:29:00,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 09:29:00,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 09:29:00,367 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 09:29:00,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 09:29:00,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 09:29:00,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 09:29:00,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 09:29:00,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 09:29:00,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 09:29:00,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 09:29:00,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 09:29:00,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 09:29:00,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 09:29:00,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 09:29:00,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 09:29:00,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 09:29:00,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 09:29:00,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 09:29:00,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 09:29:00,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 09:29:00,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 09:29:00,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 09:29:00,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 09:29:00,618 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 09:29:00,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2021-03-11 09:29:00,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0367d4cf/0d01d76195094702a2e7a6b899524b56/FLAG768bd72a6 [2021-03-11 09:29:01,154 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 09:29:01,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2021-03-11 09:29:01,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0367d4cf/0d01d76195094702a2e7a6b899524b56/FLAG768bd72a6 [2021-03-11 09:29:01,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0367d4cf/0d01d76195094702a2e7a6b899524b56 [2021-03-11 09:29:01,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 09:29:01,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 09:29:01,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 09:29:01,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 09:29:01,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 09:29:01,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:01,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b581844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01, skipping insertion in model container [2021-03-11 09:29:01,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:01,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 09:29:01,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 09:29:01,679 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 09:29:01,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2021-03-11 09:29:01,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:29:01,795 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 09:29:01,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 09:29:01,818 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2021-03-11 09:29:01,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:29:01,929 INFO L208 MainTranslator]: Completed translation [2021-03-11 09:29:01,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01 WrapperNode [2021-03-11 09:29:01,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 09:29:01,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 09:29:01,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 09:29:01,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 09:29:01,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:01,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:01,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 09:29:01,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 09:29:01,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 09:29:01,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 09:29:01,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:01,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:01,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:01,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:02,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:02,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:02,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (1/1) ... [2021-03-11 09:29:02,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 09:29:02,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 09:29:02,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 09:29:02,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 09:29:02,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (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 [2021-03-11 09:29:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 09:29:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 09:29:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 09:29:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 09:29:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 09:29:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-03-11 09:29:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-03-11 09:29:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 09:29:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 09:29:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 09:29:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 09:29:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 09:29:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 09:29:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 09:29:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-03-11 09:29:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 09:29:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 09:29:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 09:29:02,073 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 09:29:02,423 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 09:29:02,423 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-11 09:29:02,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:29:02 BoogieIcfgContainer [2021-03-11 09:29:02,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 09:29:02,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 09:29:02,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 09:29:02,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 09:29:02,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 09:29:01" (1/3) ... [2021-03-11 09:29:02,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb0bebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:29:02, skipping insertion in model container [2021-03-11 09:29:02,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:29:01" (2/3) ... [2021-03-11 09:29:02,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb0bebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:29:02, skipping insertion in model container [2021-03-11 09:29:02,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:29:02" (3/3) ... [2021-03-11 09:29:02,429 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton.i [2021-03-11 09:29:02,432 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 09:29:02,432 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 09:29:02,435 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 09:29:02,435 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 09:29:02,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,457 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,462 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,463 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,464 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,465 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,466 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,467 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,468 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,469 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,470 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,480 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,481 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,481 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,481 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,481 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,481 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,482 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,483 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,484 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,485 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,485 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,486 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,486 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,486 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,486 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,489 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,489 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,489 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,489 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,490 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,490 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,490 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,491 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,491 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,492 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,492 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,492 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,492 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,492 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,494 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,495 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,495 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,495 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,496 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,496 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,496 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,496 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,498 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,498 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,498 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,498 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,499 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,499 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,499 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,499 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,500 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,500 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,500 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,500 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,501 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:29:02,574 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-03-11 09:29:02,585 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-03-11 09:29:02,597 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 09:29:02,597 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 09:29:02,597 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 09:29:02,597 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 09:29:02,597 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 09:29:02,597 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 09:29:02,597 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 09:29:02,597 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 09:29:02,607 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 09:29:02,613 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 248 transitions, 876 flow [2021-03-11 09:29:02,614 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 248 transitions, 876 flow [2021-03-11 09:29:02,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 248 transitions, 876 flow [2021-03-11 09:29:02,668 INFO L129 PetriNetUnfolder]: 61/274 cut-off events. [2021-03-11 09:29:02,668 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2021-03-11 09:29:02,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 274 events. 61/274 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 804 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 330. Up to 24 conditions per place. [2021-03-11 09:29:02,679 INFO L116 LiptonReduction]: Number of co-enabled transitions 4156 [2021-03-11 09:29:05,382 INFO L131 LiptonReduction]: Checked pairs total: 48561 [2021-03-11 09:29:05,382 INFO L133 LiptonReduction]: Total number of compositions: 81 [2021-03-11 09:29:05,387 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 173 transitions, 726 flow [2021-03-11 09:29:05,700 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3502 states, 3496 states have (on average 4.036899313501144) internal successors, (14113), 3501 states have internal predecessors, (14113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 3502 states, 3496 states have (on average 4.036899313501144) internal successors, (14113), 3501 states have internal predecessors, (14113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-03-11 09:29:05,716 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:05,717 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:05,717 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:05,723 INFO L82 PathProgramCache]: Analyzing trace with hash -889972602, now seen corresponding path program 1 times [2021-03-11 09:29:05,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:05,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309551368] [2021-03-11 09:29:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:05,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:05,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:05,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:05,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:05,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:05,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:05,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:05,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:05,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:05,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309551368] [2021-03-11 09:29:05,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:05,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:05,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996844272] [2021-03-11 09:29:05,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:05,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:05,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:05,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:05,968 INFO L87 Difference]: Start difference. First operand has 3502 states, 3496 states have (on average 4.036899313501144) internal successors, (14113), 3501 states have internal predecessors, (14113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:06,177 INFO L93 Difference]: Finished difference Result 6012 states and 25679 transitions. [2021-03-11 09:29:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:06,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-03-11 09:29:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:06,232 INFO L225 Difference]: With dead ends: 6012 [2021-03-11 09:29:06,232 INFO L226 Difference]: Without dead ends: 5524 [2021-03-11 09:29:06,233 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2021-03-11 09:29:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 3018. [2021-03-11 09:29:06,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3018 states, 3015 states have (on average 4.070315091210613) internal successors, (12272), 3017 states have internal predecessors, (12272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3018 states to 3018 states and 12272 transitions. [2021-03-11 09:29:06,418 INFO L78 Accepts]: Start accepts. Automaton has 3018 states and 12272 transitions. Word has length 9 [2021-03-11 09:29:06,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:06,418 INFO L480 AbstractCegarLoop]: Abstraction has 3018 states and 12272 transitions. [2021-03-11 09:29:06,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3018 states and 12272 transitions. [2021-03-11 09:29:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-03-11 09:29:06,419 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:06,419 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:06,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 09:29:06,420 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:06,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:06,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1000200476, now seen corresponding path program 2 times [2021-03-11 09:29:06,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:06,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915955014] [2021-03-11 09:29:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:06,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:06,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:06,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:06,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:06,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:06,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:06,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:06,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:06,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:06,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:06,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915955014] [2021-03-11 09:29:06,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:06,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:06,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27804246] [2021-03-11 09:29:06,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:06,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:06,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:06,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:06,519 INFO L87 Difference]: Start difference. First operand 3018 states and 12272 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:06,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:06,648 INFO L93 Difference]: Finished difference Result 4266 states and 18042 transitions. [2021-03-11 09:29:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 09:29:06,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-03-11 09:29:06,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:06,674 INFO L225 Difference]: With dead ends: 4266 [2021-03-11 09:29:06,674 INFO L226 Difference]: Without dead ends: 4266 [2021-03-11 09:29:06,675 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2021-03-11 09:29:06,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3008. [2021-03-11 09:29:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3006 states have (on average 4.07684630738523) internal successors, (12255), 3007 states have internal predecessors, (12255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 12255 transitions. [2021-03-11 09:29:06,816 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 12255 transitions. Word has length 9 [2021-03-11 09:29:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:06,816 INFO L480 AbstractCegarLoop]: Abstraction has 3008 states and 12255 transitions. [2021-03-11 09:29:06,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 12255 transitions. [2021-03-11 09:29:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-11 09:29:06,817 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:06,818 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:06,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 09:29:06,818 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:06,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:06,818 INFO L82 PathProgramCache]: Analyzing trace with hash -187239876, now seen corresponding path program 1 times [2021-03-11 09:29:06,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:06,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100004761] [2021-03-11 09:29:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:06,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:06,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:06,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:06,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:06,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100004761] [2021-03-11 09:29:06,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:06,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 09:29:06,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766011803] [2021-03-11 09:29:06,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:29:06,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:06,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:29:06,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:29:06,873 INFO L87 Difference]: Start difference. First operand 3008 states and 12255 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:06,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:06,938 INFO L93 Difference]: Finished difference Result 4848 states and 19273 transitions. [2021-03-11 09:29:06,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:29:06,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-03-11 09:29:06,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:07,039 INFO L225 Difference]: With dead ends: 4848 [2021-03-11 09:29:07,040 INFO L226 Difference]: Without dead ends: 3558 [2021-03-11 09:29:07,040 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:29:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2021-03-11 09:29:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3181. [2021-03-11 09:29:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 3179 states have (on average 3.8285624410191885) internal successors, (12171), 3180 states have internal predecessors, (12171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 12171 transitions. [2021-03-11 09:29:07,136 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 12171 transitions. Word has length 16 [2021-03-11 09:29:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:07,136 INFO L480 AbstractCegarLoop]: Abstraction has 3181 states and 12171 transitions. [2021-03-11 09:29:07,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 12171 transitions. [2021-03-11 09:29:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-03-11 09:29:07,139 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:07,139 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:07,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 09:29:07,139 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:07,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:07,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1509469408, now seen corresponding path program 1 times [2021-03-11 09:29:07,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:07,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943376897] [2021-03-11 09:29:07,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:07,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:07,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 09:29:07,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:07,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:07,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:07,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:07,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943376897] [2021-03-11 09:29:07,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:07,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:07,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572797805] [2021-03-11 09:29:07,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:07,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:07,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:07,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:07,223 INFO L87 Difference]: Start difference. First operand 3181 states and 12171 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:07,423 INFO L93 Difference]: Finished difference Result 4417 states and 17212 transitions. [2021-03-11 09:29:07,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 09:29:07,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-03-11 09:29:07,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:07,441 INFO L225 Difference]: With dead ends: 4417 [2021-03-11 09:29:07,441 INFO L226 Difference]: Without dead ends: 4393 [2021-03-11 09:29:07,442 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 41.9ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:07,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2021-03-11 09:29:07,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 3588. [2021-03-11 09:29:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 3586 states have (on average 3.927774679308422) internal successors, (14085), 3587 states have internal predecessors, (14085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 14085 transitions. [2021-03-11 09:29:07,545 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 14085 transitions. Word has length 17 [2021-03-11 09:29:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:07,545 INFO L480 AbstractCegarLoop]: Abstraction has 3588 states and 14085 transitions. [2021-03-11 09:29:07,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 14085 transitions. [2021-03-11 09:29:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-03-11 09:29:07,550 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:07,550 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:07,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 09:29:07,551 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:07,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:07,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1634495134, now seen corresponding path program 2 times [2021-03-11 09:29:07,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:07,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026982370] [2021-03-11 09:29:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:07,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:07,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 09:29:07,599 INFO L142 QuantifierPusher]: treesize reduction 14, result has 22.2 percent of original size [2021-03-11 09:29:07,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:07,609 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-11 09:29:07,609 INFO L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-03-11 09:29:07,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:07,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026982370] [2021-03-11 09:29:07,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:07,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:07,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692472907] [2021-03-11 09:29:07,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:07,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:07,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:07,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:07,627 INFO L87 Difference]: Start difference. First operand 3588 states and 14085 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:07,701 INFO L93 Difference]: Finished difference Result 4024 states and 15445 transitions. [2021-03-11 09:29:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:29:07,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-03-11 09:29:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:07,714 INFO L225 Difference]: With dead ends: 4024 [2021-03-11 09:29:07,714 INFO L226 Difference]: Without dead ends: 4024 [2021-03-11 09:29:07,715 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 29.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:07,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2021-03-11 09:29:07,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3573. [2021-03-11 09:29:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 3571 states have (on average 3.9330719686362365) internal successors, (14045), 3572 states have internal predecessors, (14045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 14045 transitions. [2021-03-11 09:29:07,892 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 14045 transitions. Word has length 17 [2021-03-11 09:29:07,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:07,892 INFO L480 AbstractCegarLoop]: Abstraction has 3573 states and 14045 transitions. [2021-03-11 09:29:07,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:07,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 14045 transitions. [2021-03-11 09:29:07,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-11 09:29:07,893 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:07,893 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:07,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 09:29:07,893 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:07,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:07,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1811601317, now seen corresponding path program 1 times [2021-03-11 09:29:07,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:07,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444012313] [2021-03-11 09:29:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:07,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:07,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 09:29:07,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:07,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:07,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:07,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:07,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444012313] [2021-03-11 09:29:07,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:07,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:07,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911598878] [2021-03-11 09:29:07,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:07,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:07,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:07,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:07,955 INFO L87 Difference]: Start difference. First operand 3573 states and 14045 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:08,089 INFO L93 Difference]: Finished difference Result 4225 states and 16225 transitions. [2021-03-11 09:29:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 09:29:08,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-11 09:29:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:08,101 INFO L225 Difference]: With dead ends: 4225 [2021-03-11 09:29:08,101 INFO L226 Difference]: Without dead ends: 4129 [2021-03-11 09:29:08,102 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 37.8ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2021-03-11 09:29:08,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3713. [2021-03-11 09:29:08,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3713 states, 3711 states have (on average 3.8951765022904876) internal successors, (14455), 3712 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 14455 transitions. [2021-03-11 09:29:08,197 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 14455 transitions. Word has length 18 [2021-03-11 09:29:08,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:08,197 INFO L480 AbstractCegarLoop]: Abstraction has 3713 states and 14455 transitions. [2021-03-11 09:29:08,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 14455 transitions. [2021-03-11 09:29:08,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-11 09:29:08,198 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:08,198 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:08,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 09:29:08,198 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:08,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:08,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1392431527, now seen corresponding path program 2 times [2021-03-11 09:29:08,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:08,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104773949] [2021-03-11 09:29:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:08,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:08,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:08,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:08,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 09:29:08,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:08,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:08,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:08,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104773949] [2021-03-11 09:29:08,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:08,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 09:29:08,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377149596] [2021-03-11 09:29:08,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:08,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:08,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:08,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:08,331 INFO L87 Difference]: Start difference. First operand 3713 states and 14455 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:08,639 INFO L93 Difference]: Finished difference Result 4979 states and 19779 transitions. [2021-03-11 09:29:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 09:29:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-11 09:29:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:08,653 INFO L225 Difference]: With dead ends: 4979 [2021-03-11 09:29:08,653 INFO L226 Difference]: Without dead ends: 4905 [2021-03-11 09:29:08,654 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 184.5ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4905 states. [2021-03-11 09:29:08,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4905 to 4131. [2021-03-11 09:29:08,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 4129 states have (on average 4.025187696778881) internal successors, (16620), 4130 states have internal predecessors, (16620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:08,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 16620 transitions. [2021-03-11 09:29:08,748 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 16620 transitions. Word has length 18 [2021-03-11 09:29:08,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:08,749 INFO L480 AbstractCegarLoop]: Abstraction has 4131 states and 16620 transitions. [2021-03-11 09:29:08,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:08,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 16620 transitions. [2021-03-11 09:29:08,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-11 09:29:08,750 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:08,750 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:08,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 09:29:08,750 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:08,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:08,750 INFO L82 PathProgramCache]: Analyzing trace with hash -654427439, now seen corresponding path program 3 times [2021-03-11 09:29:08,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:08,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904176901] [2021-03-11 09:29:08,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:08,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:08,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:08,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:08,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:08,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:08,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:08,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:08,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:08,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:08,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:08,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904176901] [2021-03-11 09:29:08,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:08,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:08,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230532247] [2021-03-11 09:29:08,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 09:29:08,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:08,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 09:29:08,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:08,868 INFO L87 Difference]: Start difference. First operand 4131 states and 16620 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:09,154 INFO L93 Difference]: Finished difference Result 6735 states and 27904 transitions. [2021-03-11 09:29:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:09,155 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-11 09:29:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:09,178 INFO L225 Difference]: With dead ends: 6735 [2021-03-11 09:29:09,179 INFO L226 Difference]: Without dead ends: 6661 [2021-03-11 09:29:09,179 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 135.3ms TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:09,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2021-03-11 09:29:09,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 4129. [2021-03-11 09:29:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 4127 states have (on average 4.02616913011873) internal successors, (16616), 4128 states have internal predecessors, (16616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:09,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 16616 transitions. [2021-03-11 09:29:09,307 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 16616 transitions. Word has length 18 [2021-03-11 09:29:09,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:09,307 INFO L480 AbstractCegarLoop]: Abstraction has 4129 states and 16616 transitions. [2021-03-11 09:29:09,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:09,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 16616 transitions. [2021-03-11 09:29:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-11 09:29:09,308 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:09,308 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:09,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 09:29:09,309 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:09,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:09,309 INFO L82 PathProgramCache]: Analyzing trace with hash -635993413, now seen corresponding path program 4 times [2021-03-11 09:29:09,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:09,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035013134] [2021-03-11 09:29:09,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:09,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:09,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:09,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:09,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:09,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:09,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:09,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:09,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:09,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035013134] [2021-03-11 09:29:09,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:09,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:09,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637819980] [2021-03-11 09:29:09,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 09:29:09,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:09,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 09:29:09,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:09,393 INFO L87 Difference]: Start difference. First operand 4129 states and 16616 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:09,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:09,626 INFO L93 Difference]: Finished difference Result 5385 states and 21914 transitions. [2021-03-11 09:29:09,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:09,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-11 09:29:09,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:09,641 INFO L225 Difference]: With dead ends: 5385 [2021-03-11 09:29:09,641 INFO L226 Difference]: Without dead ends: 5311 [2021-03-11 09:29:09,641 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 94.3ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5311 states. [2021-03-11 09:29:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5311 to 4125. [2021-03-11 09:29:09,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4123 states have (on average 4.027164685908319) internal successors, (16604), 4124 states have internal predecessors, (16604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 16604 transitions. [2021-03-11 09:29:09,732 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 16604 transitions. Word has length 18 [2021-03-11 09:29:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:09,732 INFO L480 AbstractCegarLoop]: Abstraction has 4125 states and 16604 transitions. [2021-03-11 09:29:09,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 16604 transitions. [2021-03-11 09:29:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-11 09:29:09,733 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:09,733 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:09,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 09:29:09,733 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:09,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1193980017, now seen corresponding path program 5 times [2021-03-11 09:29:09,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:09,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438863340] [2021-03-11 09:29:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:09,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:09,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 09:29:09,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:09,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:09,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:09,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:09,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:09,846 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:09,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:09,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:09,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:09,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:09,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438863340] [2021-03-11 09:29:09,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:09,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:09,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66933151] [2021-03-11 09:29:09,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:09,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:09,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:09,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:09,862 INFO L87 Difference]: Start difference. First operand 4125 states and 16604 transitions. Second operand has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:10,359 INFO L93 Difference]: Finished difference Result 5686 states and 23415 transitions. [2021-03-11 09:29:10,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 09:29:10,359 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-11 09:29:10,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:10,377 INFO L225 Difference]: With dead ends: 5686 [2021-03-11 09:29:10,377 INFO L226 Difference]: Without dead ends: 5630 [2021-03-11 09:29:10,378 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 322.4ms TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-03-11 09:29:10,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2021-03-11 09:29:10,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 4116. [2021-03-11 09:29:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4116 states, 4114 states have (on average 4.029654837141468) internal successors, (16578), 4115 states have internal predecessors, (16578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4116 states to 4116 states and 16578 transitions. [2021-03-11 09:29:10,460 INFO L78 Accepts]: Start accepts. Automaton has 4116 states and 16578 transitions. Word has length 18 [2021-03-11 09:29:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:10,461 INFO L480 AbstractCegarLoop]: Abstraction has 4116 states and 16578 transitions. [2021-03-11 09:29:10,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 4116 states and 16578 transitions. [2021-03-11 09:29:10,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:29:10,462 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:10,463 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:10,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 09:29:10,463 INFO L428 AbstractCegarLoop]: === Iteration 11 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:10,463 INFO L82 PathProgramCache]: Analyzing trace with hash -337640511, now seen corresponding path program 1 times [2021-03-11 09:29:10,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:10,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365357937] [2021-03-11 09:29:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:10,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:10,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 09:29:10,500 INFO L142 QuantifierPusher]: treesize reduction 14, result has 22.2 percent of original size [2021-03-11 09:29:10,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:10,504 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-11 09:29:10,506 INFO L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-03-11 09:29:10,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:10,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365357937] [2021-03-11 09:29:10,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:10,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:10,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642628966] [2021-03-11 09:29:10,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:10,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:10,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:10,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:10,522 INFO L87 Difference]: Start difference. First operand 4116 states and 16578 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:10,585 INFO L93 Difference]: Finished difference Result 4687 states and 18325 transitions. [2021-03-11 09:29:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:29:10,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-03-11 09:29:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:10,596 INFO L225 Difference]: With dead ends: 4687 [2021-03-11 09:29:10,596 INFO L226 Difference]: Without dead ends: 4687 [2021-03-11 09:29:10,597 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 26.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4687 states. [2021-03-11 09:29:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4687 to 4131. [2021-03-11 09:29:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 4129 states have (on average 4.025429886170985) internal successors, (16621), 4130 states have internal predecessors, (16621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 16621 transitions. [2021-03-11 09:29:10,672 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 16621 transitions. Word has length 19 [2021-03-11 09:29:10,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:10,672 INFO L480 AbstractCegarLoop]: Abstraction has 4131 states and 16621 transitions. [2021-03-11 09:29:10,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 16621 transitions. [2021-03-11 09:29:10,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:29:10,674 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:10,674 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:10,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 09:29:10,674 INFO L428 AbstractCegarLoop]: === Iteration 12 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:10,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1208032321, now seen corresponding path program 2 times [2021-03-11 09:29:10,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:10,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396892259] [2021-03-11 09:29:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:10,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:10,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 09:29:10,721 INFO L142 QuantifierPusher]: treesize reduction 31, result has 22.5 percent of original size [2021-03-11 09:29:10,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 09:29:10,728 INFO L142 QuantifierPusher]: treesize reduction 28, result has 54.1 percent of original size [2021-03-11 09:29:10,730 INFO L147 QuantifierPusher]: treesize reduction 9, result has 72.7 percent of original size 24 [2021-03-11 09:29:10,745 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-11 09:29:10,746 INFO L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-03-11 09:29:10,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:10,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396892259] [2021-03-11 09:29:10,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:10,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 09:29:10,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115095375] [2021-03-11 09:29:10,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 09:29:10,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:10,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 09:29:10,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-11 09:29:10,763 INFO L87 Difference]: Start difference. First operand 4131 states and 16621 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:10,843 INFO L93 Difference]: Finished difference Result 4619 states and 18100 transitions. [2021-03-11 09:29:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:29:10,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-03-11 09:29:10,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:10,854 INFO L225 Difference]: With dead ends: 4619 [2021-03-11 09:29:10,854 INFO L226 Difference]: Without dead ends: 4619 [2021-03-11 09:29:10,854 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 51.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:10,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2021-03-11 09:29:10,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4078. [2021-03-11 09:29:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4078 states, 4076 states have (on average 4.032384690873405) internal successors, (16436), 4077 states have internal predecessors, (16436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 16436 transitions. [2021-03-11 09:29:10,934 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 16436 transitions. Word has length 19 [2021-03-11 09:29:10,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:10,934 INFO L480 AbstractCegarLoop]: Abstraction has 4078 states and 16436 transitions. [2021-03-11 09:29:10,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:10,934 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 16436 transitions. [2021-03-11 09:29:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:29:10,935 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:10,935 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:10,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 09:29:10,936 INFO L428 AbstractCegarLoop]: === Iteration 13 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:10,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:10,936 INFO L82 PathProgramCache]: Analyzing trace with hash 156400936, now seen corresponding path program 1 times [2021-03-11 09:29:10,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:10,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244139438] [2021-03-11 09:29:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:10,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:10,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:10,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:10,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:11,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:11,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:11,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:11,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:11,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:11,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:11,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:11,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244139438] [2021-03-11 09:29:11,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:11,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 09:29:11,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662948156] [2021-03-11 09:29:11,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 09:29:11,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:11,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 09:29:11,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:11,113 INFO L87 Difference]: Start difference. First operand 4078 states and 16436 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:11,520 INFO L93 Difference]: Finished difference Result 5300 states and 21612 transitions. [2021-03-11 09:29:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:11,521 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-03-11 09:29:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:11,534 INFO L225 Difference]: With dead ends: 5300 [2021-03-11 09:29:11,535 INFO L226 Difference]: Without dead ends: 5226 [2021-03-11 09:29:11,535 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 283.3ms TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5226 states. [2021-03-11 09:29:11,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5226 to 4066. [2021-03-11 09:29:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4066 states, 4064 states have (on average 4.033464566929134) internal successors, (16392), 4065 states have internal predecessors, (16392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4066 states to 4066 states and 16392 transitions. [2021-03-11 09:29:11,630 INFO L78 Accepts]: Start accepts. Automaton has 4066 states and 16392 transitions. Word has length 19 [2021-03-11 09:29:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:11,630 INFO L480 AbstractCegarLoop]: Abstraction has 4066 states and 16392 transitions. [2021-03-11 09:29:11,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4066 states and 16392 transitions. [2021-03-11 09:29:11,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:29:11,632 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:11,633 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:11,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 09:29:11,633 INFO L428 AbstractCegarLoop]: === Iteration 14 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:11,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:11,633 INFO L82 PathProgramCache]: Analyzing trace with hash 179637916, now seen corresponding path program 2 times [2021-03-11 09:29:11,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:11,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229703468] [2021-03-11 09:29:11,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:11,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:11,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 09:29:11,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:11,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:11,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:11,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:11,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:11,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:11,806 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:11,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:11,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:11,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:11,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:11,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229703468] [2021-03-11 09:29:11,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:11,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:11,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091178923] [2021-03-11 09:29:11,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:11,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:11,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:11,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:11,823 INFO L87 Difference]: Start difference. First operand 4066 states and 16392 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:12,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:12,356 INFO L93 Difference]: Finished difference Result 5713 states and 23638 transitions. [2021-03-11 09:29:12,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 09:29:12,356 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-03-11 09:29:12,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:12,368 INFO L225 Difference]: With dead ends: 5713 [2021-03-11 09:29:12,368 INFO L226 Difference]: Without dead ends: 5651 [2021-03-11 09:29:12,368 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 377.2ms TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-03-11 09:29:12,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2021-03-11 09:29:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 4021. [2021-03-11 09:29:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 4.037322717093804) internal successors, (16226), 4020 states have internal predecessors, (16226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 16226 transitions. [2021-03-11 09:29:12,442 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 16226 transitions. Word has length 19 [2021-03-11 09:29:12,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:12,442 INFO L480 AbstractCegarLoop]: Abstraction has 4021 states and 16226 transitions. [2021-03-11 09:29:12,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:12,442 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 16226 transitions. [2021-03-11 09:29:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:12,444 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:12,444 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:12,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 09:29:12,444 INFO L428 AbstractCegarLoop]: === Iteration 15 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:12,444 INFO L82 PathProgramCache]: Analyzing trace with hash 410584358, now seen corresponding path program 1 times [2021-03-11 09:29:12,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:12,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934767754] [2021-03-11 09:29:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:12,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:12,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:12,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:12,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:12,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:12,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:12,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:12,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934767754] [2021-03-11 09:29:12,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:12,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 09:29:12,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253181663] [2021-03-11 09:29:12,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:12,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:12,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:12,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:12,491 INFO L87 Difference]: Start difference. First operand 4021 states and 16226 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:12,728 INFO L93 Difference]: Finished difference Result 6240 states and 25278 transitions. [2021-03-11 09:29:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:12,742 INFO L225 Difference]: With dead ends: 6240 [2021-03-11 09:29:12,742 INFO L226 Difference]: Without dead ends: 6194 [2021-03-11 09:29:12,743 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 82.3ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:12,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2021-03-11 09:29:12,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 4020. [2021-03-11 09:29:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4018 states have (on average 4.0380786460925835) internal successors, (16225), 4019 states have internal predecessors, (16225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:12,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 16225 transitions. [2021-03-11 09:29:12,838 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 16225 transitions. Word has length 20 [2021-03-11 09:29:12,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:12,838 INFO L480 AbstractCegarLoop]: Abstraction has 4020 states and 16225 transitions. [2021-03-11 09:29:12,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:12,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 16225 transitions. [2021-03-11 09:29:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:12,840 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:12,840 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:12,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 09:29:12,840 INFO L428 AbstractCegarLoop]: === Iteration 16 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:12,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:12,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1723743028, now seen corresponding path program 2 times [2021-03-11 09:29:12,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:12,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687589598] [2021-03-11 09:29:12,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:12,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:12,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:12,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:12,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:12,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:12,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:12,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:12,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:12,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687589598] [2021-03-11 09:29:12,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:12,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 09:29:12,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311207722] [2021-03-11 09:29:12,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:12,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:12,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:12,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:12,889 INFO L87 Difference]: Start difference. First operand 4020 states and 16225 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:13,033 INFO L93 Difference]: Finished difference Result 5057 states and 20246 transitions. [2021-03-11 09:29:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:13,043 INFO L225 Difference]: With dead ends: 5057 [2021-03-11 09:29:13,043 INFO L226 Difference]: Without dead ends: 5011 [2021-03-11 09:29:13,044 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 71.5ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:13,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5011 states. [2021-03-11 09:29:13,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5011 to 4017. [2021-03-11 09:29:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4017 states, 4015 states have (on average 4.039352428393524) internal successors, (16218), 4016 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:13,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 16218 transitions. [2021-03-11 09:29:13,136 INFO L78 Accepts]: Start accepts. Automaton has 4017 states and 16218 transitions. Word has length 20 [2021-03-11 09:29:13,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:13,136 INFO L480 AbstractCegarLoop]: Abstraction has 4017 states and 16218 transitions. [2021-03-11 09:29:13,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:13,137 INFO L276 IsEmpty]: Start isEmpty. Operand 4017 states and 16218 transitions. [2021-03-11 09:29:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:13,138 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:13,138 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:13,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 09:29:13,138 INFO L428 AbstractCegarLoop]: === Iteration 17 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:13,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:13,139 INFO L82 PathProgramCache]: Analyzing trace with hash 962909086, now seen corresponding path program 3 times [2021-03-11 09:29:13,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:13,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641156191] [2021-03-11 09:29:13,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:13,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:13,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:13,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:13,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:13,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:13,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:13,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:13,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:13,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641156191] [2021-03-11 09:29:13,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:13,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:13,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578295261] [2021-03-11 09:29:13,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 09:29:13,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:13,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 09:29:13,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:13,253 INFO L87 Difference]: Start difference. First operand 4017 states and 16218 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:13,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:13,543 INFO L93 Difference]: Finished difference Result 5047 states and 20222 transitions. [2021-03-11 09:29:13,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:13,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:13,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:13,554 INFO L225 Difference]: With dead ends: 5047 [2021-03-11 09:29:13,554 INFO L226 Difference]: Without dead ends: 5001 [2021-03-11 09:29:13,555 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 199.8ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:13,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5001 states. [2021-03-11 09:29:13,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5001 to 4010. [2021-03-11 09:29:13,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4008 states have (on average 4.041666666666667) internal successors, (16199), 4009 states have internal predecessors, (16199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:13,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 16199 transitions. [2021-03-11 09:29:13,643 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 16199 transitions. Word has length 20 [2021-03-11 09:29:13,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:13,643 INFO L480 AbstractCegarLoop]: Abstraction has 4010 states and 16199 transitions. [2021-03-11 09:29:13,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:13,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 16199 transitions. [2021-03-11 09:29:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:13,645 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:13,645 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:13,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 09:29:13,646 INFO L428 AbstractCegarLoop]: === Iteration 18 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1808131740, now seen corresponding path program 4 times [2021-03-11 09:29:13,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:13,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705602511] [2021-03-11 09:29:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:13,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:13,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 09:29:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:13,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:13,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:13,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:13,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:13,795 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:13,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:13,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:13,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:13,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:13,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705602511] [2021-03-11 09:29:13,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:13,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:13,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776628818] [2021-03-11 09:29:13,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:13,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:13,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:13,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:13,815 INFO L87 Difference]: Start difference. First operand 4010 states and 16199 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:14,259 INFO L93 Difference]: Finished difference Result 5545 states and 22382 transitions. [2021-03-11 09:29:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 09:29:14,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:14,272 INFO L225 Difference]: With dead ends: 5545 [2021-03-11 09:29:14,272 INFO L226 Difference]: Without dead ends: 5499 [2021-03-11 09:29:14,273 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 335.1ms TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-03-11 09:29:14,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2021-03-11 09:29:14,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 4140. [2021-03-11 09:29:14,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4138 states have (on average 4.076123731271146) internal successors, (16867), 4139 states have internal predecessors, (16867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:14,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 16867 transitions. [2021-03-11 09:29:14,360 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 16867 transitions. Word has length 20 [2021-03-11 09:29:14,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:14,360 INFO L480 AbstractCegarLoop]: Abstraction has 4140 states and 16867 transitions. [2021-03-11 09:29:14,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 16867 transitions. [2021-03-11 09:29:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:14,362 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:14,362 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:14,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 09:29:14,362 INFO L428 AbstractCegarLoop]: === Iteration 19 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:14,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:14,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1427079829, now seen corresponding path program 1 times [2021-03-11 09:29:14,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:14,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519376880] [2021-03-11 09:29:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:14,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:14,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 09:29:14,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:14,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:14,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:14,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:14,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 09:29:14,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:14,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:14,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:14,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:14,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:14,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519376880] [2021-03-11 09:29:14,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:14,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:14,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87664816] [2021-03-11 09:29:14,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:14,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:14,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:14,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:14,507 INFO L87 Difference]: Start difference. First operand 4140 states and 16867 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:15,039 INFO L93 Difference]: Finished difference Result 6397 states and 25724 transitions. [2021-03-11 09:29:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 09:29:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:15,053 INFO L225 Difference]: With dead ends: 6397 [2021-03-11 09:29:15,053 INFO L226 Difference]: Without dead ends: 6351 [2021-03-11 09:29:15,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 398.6ms TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-03-11 09:29:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6351 states. [2021-03-11 09:29:15,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6351 to 4140. [2021-03-11 09:29:15,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4138 states have (on average 4.076365393910102) internal successors, (16868), 4139 states have internal predecessors, (16868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 16868 transitions. [2021-03-11 09:29:15,130 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 16868 transitions. Word has length 20 [2021-03-11 09:29:15,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:15,131 INFO L480 AbstractCegarLoop]: Abstraction has 4140 states and 16868 transitions. [2021-03-11 09:29:15,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:15,131 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 16868 transitions. [2021-03-11 09:29:15,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:15,132 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:15,132 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:15,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 09:29:15,133 INFO L428 AbstractCegarLoop]: === Iteration 20 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:15,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:15,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1408645803, now seen corresponding path program 2 times [2021-03-11 09:29:15,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:15,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126211209] [2021-03-11 09:29:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:15,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:15,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 09:29:15,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:15,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:15,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:15,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:15,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 09:29:15,278 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:15,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:15,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:15,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:15,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126211209] [2021-03-11 09:29:15,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:15,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:15,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629066003] [2021-03-11 09:29:15,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:15,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:15,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:15,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:15,294 INFO L87 Difference]: Start difference. First operand 4140 states and 16868 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:15,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:15,770 INFO L93 Difference]: Finished difference Result 5409 states and 21869 transitions. [2021-03-11 09:29:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 09:29:15,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:15,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:15,782 INFO L225 Difference]: With dead ends: 5409 [2021-03-11 09:29:15,782 INFO L226 Difference]: Without dead ends: 5363 [2021-03-11 09:29:15,783 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 391.7ms TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2021-03-11 09:29:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2021-03-11 09:29:15,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 4142. [2021-03-11 09:29:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4142 states, 4140 states have (on average 4.07584541062802) internal successors, (16874), 4141 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 16874 transitions. [2021-03-11 09:29:15,863 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 16874 transitions. Word has length 20 [2021-03-11 09:29:15,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:15,863 INFO L480 AbstractCegarLoop]: Abstraction has 4142 states and 16874 transitions. [2021-03-11 09:29:15,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 16874 transitions. [2021-03-11 09:29:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:15,865 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:15,865 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:15,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 09:29:15,865 INFO L428 AbstractCegarLoop]: === Iteration 21 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:15,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:15,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1871431927, now seen corresponding path program 3 times [2021-03-11 09:29:15,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:15,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002980653] [2021-03-11 09:29:15,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:15,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 09:29:15,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:15,900 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.5 percent of original size [2021-03-11 09:29:15,901 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-11 09:29:15,919 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-03-11 09:29:15,920 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-11 09:29:15,936 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-11 09:29:15,937 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-03-11 09:29:15,953 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-11 09:29:15,954 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-03-11 09:29:15,960 INFO L142 QuantifierPusher]: treesize reduction 17, result has 29.2 percent of original size [2021-03-11 09:29:15,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:15,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:15,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:15,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:15,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:15,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002980653] [2021-03-11 09:29:15,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:15,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 09:29:15,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096520158] [2021-03-11 09:29:15,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 09:29:15,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:15,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 09:29:15,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:15,983 INFO L87 Difference]: Start difference. First operand 4142 states and 16874 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:16,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:16,364 INFO L93 Difference]: Finished difference Result 6189 states and 24832 transitions. [2021-03-11 09:29:16,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 09:29:16,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:16,378 INFO L225 Difference]: With dead ends: 6189 [2021-03-11 09:29:16,378 INFO L226 Difference]: Without dead ends: 6143 [2021-03-11 09:29:16,378 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 222.7ms TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-03-11 09:29:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6143 states. [2021-03-11 09:29:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6143 to 4141. [2021-03-11 09:29:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 4139 states have (on average 4.076588547958444) internal successors, (16873), 4140 states have internal predecessors, (16873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 16873 transitions. [2021-03-11 09:29:16,454 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 16873 transitions. Word has length 20 [2021-03-11 09:29:16,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:16,454 INFO L480 AbstractCegarLoop]: Abstraction has 4141 states and 16873 transitions. [2021-03-11 09:29:16,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:16,454 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 16873 transitions. [2021-03-11 09:29:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-11 09:29:16,456 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:16,456 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:16,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 09:29:16,456 INFO L428 AbstractCegarLoop]: === Iteration 22 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:16,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1889865953, now seen corresponding path program 4 times [2021-03-11 09:29:16,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:16,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144495993] [2021-03-11 09:29:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:16,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 09:29:16,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:16,491 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-11 09:29:16,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:16,500 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.9 percent of original size [2021-03-11 09:29:16,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:16,510 INFO L142 QuantifierPusher]: treesize reduction 23, result has 51.1 percent of original size [2021-03-11 09:29:16,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:16,520 INFO L142 QuantifierPusher]: treesize reduction 23, result has 51.1 percent of original size [2021-03-11 09:29:16,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:16,526 INFO L142 QuantifierPusher]: treesize reduction 23, result has 34.3 percent of original size [2021-03-11 09:29:16,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 09:29:16,536 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-11 09:29:16,536 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-03-11 09:29:16,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:16,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:16,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144495993] [2021-03-11 09:29:16,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:16,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 09:29:16,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99110170] [2021-03-11 09:29:16,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 09:29:16,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:16,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 09:29:16,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:16,555 INFO L87 Difference]: Start difference. First operand 4141 states and 16873 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:16,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:16,826 INFO L93 Difference]: Finished difference Result 5246 states and 21125 transitions. [2021-03-11 09:29:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:16,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-11 09:29:16,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:16,838 INFO L225 Difference]: With dead ends: 5246 [2021-03-11 09:29:16,838 INFO L226 Difference]: Without dead ends: 5200 [2021-03-11 09:29:16,838 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 149.2ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:16,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5200 states. [2021-03-11 09:29:16,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5200 to 3983. [2021-03-11 09:29:16,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3983 states, 3981 states have (on average 4.052499372017081) internal successors, (16133), 3982 states have internal predecessors, (16133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:16,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 16133 transitions. [2021-03-11 09:29:16,907 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 16133 transitions. Word has length 20 [2021-03-11 09:29:16,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:16,907 INFO L480 AbstractCegarLoop]: Abstraction has 3983 states and 16133 transitions. [2021-03-11 09:29:16,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 16133 transitions. [2021-03-11 09:29:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:16,909 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:16,909 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:16,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 09:29:16,909 INFO L428 AbstractCegarLoop]: === Iteration 23 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:16,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:16,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1620798125, now seen corresponding path program 1 times [2021-03-11 09:29:16,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:16,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475686279] [2021-03-11 09:29:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:16,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:16,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 09:29:16,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:16,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:16,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:16,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:16,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475686279] [2021-03-11 09:29:16,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:16,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:16,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569784926] [2021-03-11 09:29:16,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:16,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:16,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:16,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:16,938 INFO L87 Difference]: Start difference. First operand 3983 states and 16133 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:17,056 INFO L93 Difference]: Finished difference Result 4762 states and 18800 transitions. [2021-03-11 09:29:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 09:29:17,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:17,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:17,067 INFO L225 Difference]: With dead ends: 4762 [2021-03-11 09:29:17,067 INFO L226 Difference]: Without dead ends: 4687 [2021-03-11 09:29:17,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4687 states. [2021-03-11 09:29:17,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4687 to 4305. [2021-03-11 09:29:17,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4303 states have (on average 4.025098768301185) internal successors, (17320), 4304 states have internal predecessors, (17320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 17320 transitions. [2021-03-11 09:29:17,141 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 17320 transitions. Word has length 21 [2021-03-11 09:29:17,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:17,141 INFO L480 AbstractCegarLoop]: Abstraction has 4305 states and 17320 transitions. [2021-03-11 09:29:17,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 17320 transitions. [2021-03-11 09:29:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:17,144 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:17,144 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:17,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 09:29:17,144 INFO L428 AbstractCegarLoop]: === Iteration 24 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:17,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:17,144 INFO L82 PathProgramCache]: Analyzing trace with hash 396486293, now seen corresponding path program 2 times [2021-03-11 09:29:17,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:17,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077231685] [2021-03-11 09:29:17,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:17,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:17,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 09:29:17,175 INFO L142 QuantifierPusher]: treesize reduction 14, result has 22.2 percent of original size [2021-03-11 09:29:17,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:17,179 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 09:29:17,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:17,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:17,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077231685] [2021-03-11 09:29:17,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:17,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:17,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223454300] [2021-03-11 09:29:17,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:17,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:17,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:17,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:17,189 INFO L87 Difference]: Start difference. First operand 4305 states and 17320 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:17,262 INFO L93 Difference]: Finished difference Result 5233 states and 20429 transitions. [2021-03-11 09:29:17,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:29:17,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:17,273 INFO L225 Difference]: With dead ends: 5233 [2021-03-11 09:29:17,273 INFO L226 Difference]: Without dead ends: 4707 [2021-03-11 09:29:17,273 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:17,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4707 states. [2021-03-11 09:29:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4707 to 3933. [2021-03-11 09:29:17,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 3931 states have (on average 3.9521750190791147) internal successors, (15536), 3932 states have internal predecessors, (15536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 15536 transitions. [2021-03-11 09:29:17,340 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 15536 transitions. Word has length 21 [2021-03-11 09:29:17,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:17,341 INFO L480 AbstractCegarLoop]: Abstraction has 3933 states and 15536 transitions. [2021-03-11 09:29:17,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 15536 transitions. [2021-03-11 09:29:17,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:17,342 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:17,342 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:17,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 09:29:17,342 INFO L428 AbstractCegarLoop]: === Iteration 25 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:17,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1515070411, now seen corresponding path program 1 times [2021-03-11 09:29:17,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:17,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128537336] [2021-03-11 09:29:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:17,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:17,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:17,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:17,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:17,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:17,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:17,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:17,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:17,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:17,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128537336] [2021-03-11 09:29:17,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:17,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 09:29:17,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199144778] [2021-03-11 09:29:17,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 09:29:17,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:17,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 09:29:17,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:17,462 INFO L87 Difference]: Start difference. First operand 3933 states and 15536 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:17,827 INFO L93 Difference]: Finished difference Result 4734 states and 18567 transitions. [2021-03-11 09:29:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:17,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:17,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:17,838 INFO L225 Difference]: With dead ends: 4734 [2021-03-11 09:29:17,838 INFO L226 Difference]: Without dead ends: 4685 [2021-03-11 09:29:17,838 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 250.4ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:17,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2021-03-11 09:29:17,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 3841. [2021-03-11 09:29:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3841 states, 3839 states have (on average 3.949466006772597) internal successors, (15162), 3840 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 15162 transitions. [2021-03-11 09:29:17,910 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 15162 transitions. Word has length 21 [2021-03-11 09:29:17,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:17,910 INFO L480 AbstractCegarLoop]: Abstraction has 3841 states and 15162 transitions. [2021-03-11 09:29:17,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:17,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 15162 transitions. [2021-03-11 09:29:17,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:17,912 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:17,912 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:17,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 09:29:17,913 INFO L428 AbstractCegarLoop]: === Iteration 26 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:17,913 INFO L82 PathProgramCache]: Analyzing trace with hash 895410322, now seen corresponding path program 1 times [2021-03-11 09:29:17,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:17,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481254042] [2021-03-11 09:29:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:17,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:17,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:17,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:17,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:17,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:17,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:17,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:18,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:18,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:18,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:18,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:18,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481254042] [2021-03-11 09:29:18,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:18,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:18,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327728274] [2021-03-11 09:29:18,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:18,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:18,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:18,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:18,047 INFO L87 Difference]: Start difference. First operand 3841 states and 15162 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:18,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:18,460 INFO L93 Difference]: Finished difference Result 4819 states and 19192 transitions. [2021-03-11 09:29:18,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:18,460 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:18,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:18,470 INFO L225 Difference]: With dead ends: 4819 [2021-03-11 09:29:18,471 INFO L226 Difference]: Without dead ends: 4745 [2021-03-11 09:29:18,471 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 312.5ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-03-11 09:29:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4745 states. [2021-03-11 09:29:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4745 to 3881. [2021-03-11 09:29:18,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3881 states, 3879 states have (on average 3.9499871100799173) internal successors, (15322), 3880 states have internal predecessors, (15322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 15322 transitions. [2021-03-11 09:29:18,530 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 15322 transitions. Word has length 21 [2021-03-11 09:29:18,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:18,530 INFO L480 AbstractCegarLoop]: Abstraction has 3881 states and 15322 transitions. [2021-03-11 09:29:18,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 15322 transitions. [2021-03-11 09:29:18,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:18,532 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:18,532 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:18,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 09:29:18,532 INFO L428 AbstractCegarLoop]: === Iteration 27 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:18,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:18,533 INFO L82 PathProgramCache]: Analyzing trace with hash 918647302, now seen corresponding path program 2 times [2021-03-11 09:29:18,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:18,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071270684] [2021-03-11 09:29:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:18,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:18,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 09:29:18,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 09:29:18,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:18,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:18,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:18,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 09:29:18,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:18,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:18,698 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:18,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:18,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:18,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:18,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:18,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071270684] [2021-03-11 09:29:18,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:18,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 09:29:18,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233013047] [2021-03-11 09:29:18,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 09:29:18,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:18,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 09:29:18,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:18,716 INFO L87 Difference]: Start difference. First operand 3881 states and 15322 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:19,300 INFO L93 Difference]: Finished difference Result 5219 states and 20675 transitions. [2021-03-11 09:29:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 09:29:19,300 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:19,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:19,311 INFO L225 Difference]: With dead ends: 5219 [2021-03-11 09:29:19,311 INFO L226 Difference]: Without dead ends: 5065 [2021-03-11 09:29:19,311 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 492.2ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-03-11 09:29:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2021-03-11 09:29:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 3487. [2021-03-11 09:29:19,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3487 states, 3485 states have (on average 3.897274031563845) internal successors, (13582), 3486 states have internal predecessors, (13582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3487 states to 3487 states and 13582 transitions. [2021-03-11 09:29:19,367 INFO L78 Accepts]: Start accepts. Automaton has 3487 states and 13582 transitions. Word has length 21 [2021-03-11 09:29:19,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:19,367 INFO L480 AbstractCegarLoop]: Abstraction has 3487 states and 13582 transitions. [2021-03-11 09:29:19,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3487 states and 13582 transitions. [2021-03-11 09:29:19,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:19,368 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:19,368 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:19,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 09:29:19,369 INFO L428 AbstractCegarLoop]: === Iteration 28 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:19,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:19,369 INFO L82 PathProgramCache]: Analyzing trace with hash -994961815, now seen corresponding path program 2 times [2021-03-11 09:29:19,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:19,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613104504] [2021-03-11 09:29:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:19,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:19,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 09:29:19,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:19,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:19,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:19,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 09:29:19,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:19,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:19,518 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:19,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:19,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:19,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:19,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:19,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613104504] [2021-03-11 09:29:19,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:19,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:19,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571145905] [2021-03-11 09:29:19,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:19,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:19,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:19,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:19,537 INFO L87 Difference]: Start difference. First operand 3487 states and 13582 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:19,970 INFO L93 Difference]: Finished difference Result 4897 states and 19270 transitions. [2021-03-11 09:29:19,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 09:29:19,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:19,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:19,980 INFO L225 Difference]: With dead ends: 4897 [2021-03-11 09:29:19,980 INFO L226 Difference]: Without dead ends: 4845 [2021-03-11 09:29:19,980 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 354.9ms TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-03-11 09:29:19,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2021-03-11 09:29:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 3538. [2021-03-11 09:29:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3536 states have (on average 3.9389140271493215) internal successors, (13928), 3537 states have internal predecessors, (13928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 13928 transitions. [2021-03-11 09:29:20,033 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 13928 transitions. Word has length 21 [2021-03-11 09:29:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:20,034 INFO L480 AbstractCegarLoop]: Abstraction has 3538 states and 13928 transitions. [2021-03-11 09:29:20,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:20,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 13928 transitions. [2021-03-11 09:29:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:20,035 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:20,035 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:20,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 09:29:20,035 INFO L428 AbstractCegarLoop]: === Iteration 29 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:20,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:20,036 INFO L82 PathProgramCache]: Analyzing trace with hash -49596659, now seen corresponding path program 1 times [2021-03-11 09:29:20,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:20,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520390212] [2021-03-11 09:29:20,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:20,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:20,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:20,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:20,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 09:29:20,066 INFO L142 QuantifierPusher]: treesize reduction 27, result has 32.5 percent of original size [2021-03-11 09:29:20,066 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-03-11 09:29:20,074 INFO L142 QuantifierPusher]: treesize reduction 37, result has 39.3 percent of original size [2021-03-11 09:29:20,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:20,081 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 09:29:20,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:20,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:20,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:20,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520390212] [2021-03-11 09:29:20,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:20,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 09:29:20,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151912324] [2021-03-11 09:29:20,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 09:29:20,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:20,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 09:29:20,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-11 09:29:20,094 INFO L87 Difference]: Start difference. First operand 3538 states and 13928 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:20,185 INFO L93 Difference]: Finished difference Result 4049 states and 15584 transitions. [2021-03-11 09:29:20,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:29:20,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:20,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:20,193 INFO L225 Difference]: With dead ends: 4049 [2021-03-11 09:29:20,193 INFO L226 Difference]: Without dead ends: 3955 [2021-03-11 09:29:20,194 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 40.8ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2021-03-11 09:29:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3539. [2021-03-11 09:29:20,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3539 states, 3537 states have (on average 3.9389312977099236) internal successors, (13932), 3538 states have internal predecessors, (13932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 13932 transitions. [2021-03-11 09:29:20,289 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 13932 transitions. Word has length 21 [2021-03-11 09:29:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:20,290 INFO L480 AbstractCegarLoop]: Abstraction has 3539 states and 13932 transitions. [2021-03-11 09:29:20,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:20,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 13932 transitions. [2021-03-11 09:29:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:20,291 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:20,291 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:20,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 09:29:20,292 INFO L428 AbstractCegarLoop]: === Iteration 30 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:20,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:20,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1973980622, now seen corresponding path program 1 times [2021-03-11 09:29:20,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:20,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219297211] [2021-03-11 09:29:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:20,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:20,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 09:29:20,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:20,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 09:29:20,333 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.3 percent of original size [2021-03-11 09:29:20,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:20,349 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.3 percent of original size [2021-03-11 09:29:20,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:20,365 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-11 09:29:20,365 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size 37 [2021-03-11 09:29:20,394 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-11 09:29:20,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:20,412 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.5 percent of original size [2021-03-11 09:29:20,412 INFO L147 QuantifierPusher]: treesize reduction 4, result has 89.2 percent of original size 33 [2021-03-11 09:29:20,423 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.9 percent of original size [2021-03-11 09:29:20,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:20,440 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-11 09:29:20,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:20,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:20,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:20,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:20,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:20,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219297211] [2021-03-11 09:29:20,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:20,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:20,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858902029] [2021-03-11 09:29:20,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:20,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:20,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:20,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:20,457 INFO L87 Difference]: Start difference. First operand 3539 states and 13932 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:20,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:20,950 INFO L93 Difference]: Finished difference Result 4515 states and 17617 transitions. [2021-03-11 09:29:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 09:29:20,950 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:20,959 INFO L225 Difference]: With dead ends: 4515 [2021-03-11 09:29:20,959 INFO L226 Difference]: Without dead ends: 4466 [2021-03-11 09:29:20,960 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 417.6ms TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-03-11 09:29:20,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2021-03-11 09:29:21,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 3389. [2021-03-11 09:29:21,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3389 states, 3387 states have (on average 3.913197519929141) internal successors, (13254), 3388 states have internal predecessors, (13254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 13254 transitions. [2021-03-11 09:29:21,012 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 13254 transitions. Word has length 21 [2021-03-11 09:29:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:21,012 INFO L480 AbstractCegarLoop]: Abstraction has 3389 states and 13254 transitions. [2021-03-11 09:29:21,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 13254 transitions. [2021-03-11 09:29:21,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 09:29:21,014 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:21,014 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:21,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 09:29:21,014 INFO L428 AbstractCegarLoop]: === Iteration 31 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:21,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:21,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1785714957, now seen corresponding path program 2 times [2021-03-11 09:29:21,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:21,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214888923] [2021-03-11 09:29:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:21,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:21,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:21,039 INFO L142 QuantifierPusher]: treesize reduction 46, result has 27.0 percent of original size [2021-03-11 09:29:21,039 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-03-11 09:29:21,049 INFO L142 QuantifierPusher]: treesize reduction 51, result has 39.3 percent of original size [2021-03-11 09:29:21,049 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-11 09:29:21,066 INFO L142 QuantifierPusher]: treesize reduction 37, result has 39.3 percent of original size [2021-03-11 09:29:21,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:21,075 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 09:29:21,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:21,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:21,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214888923] [2021-03-11 09:29:21,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:21,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 09:29:21,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763253049] [2021-03-11 09:29:21,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:21,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:21,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:21,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:21,089 INFO L87 Difference]: Start difference. First operand 3389 states and 13254 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:21,176 INFO L93 Difference]: Finished difference Result 3454 states and 13344 transitions. [2021-03-11 09:29:21,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:29:21,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-03-11 09:29:21,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:21,183 INFO L225 Difference]: With dead ends: 3454 [2021-03-11 09:29:21,183 INFO L226 Difference]: Without dead ends: 3454 [2021-03-11 09:29:21,184 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 68.4ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:21,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2021-03-11 09:29:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3216. [2021-03-11 09:29:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3214 states have (on average 3.9128811449906657) internal successors, (12576), 3215 states have internal predecessors, (12576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 12576 transitions. [2021-03-11 09:29:21,229 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 12576 transitions. Word has length 21 [2021-03-11 09:29:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:21,229 INFO L480 AbstractCegarLoop]: Abstraction has 3216 states and 12576 transitions. [2021-03-11 09:29:21,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 12576 transitions. [2021-03-11 09:29:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-11 09:29:21,231 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:21,231 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:21,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 09:29:21,231 INFO L428 AbstractCegarLoop]: === Iteration 32 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:21,231 INFO L82 PathProgramCache]: Analyzing trace with hash -2118368299, now seen corresponding path program 1 times [2021-03-11 09:29:21,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:21,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961130854] [2021-03-11 09:29:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:21,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:21,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:21,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 09:29:21,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:21,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:21,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:21,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961130854] [2021-03-11 09:29:21,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:21,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 09:29:21,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658403312] [2021-03-11 09:29:21,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:21,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:21,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:21,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:21,288 INFO L87 Difference]: Start difference. First operand 3216 states and 12576 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:21,543 INFO L93 Difference]: Finished difference Result 3935 states and 15036 transitions. [2021-03-11 09:29:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 09:29:21,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-11 09:29:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:21,551 INFO L225 Difference]: With dead ends: 3935 [2021-03-11 09:29:21,551 INFO L226 Difference]: Without dead ends: 3875 [2021-03-11 09:29:21,551 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 147.0ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2021-03-11 09:29:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 3213. [2021-03-11 09:29:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3213 states, 3211 states have (on average 3.91497975708502) internal successors, (12571), 3212 states have internal predecessors, (12571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 12571 transitions. [2021-03-11 09:29:21,597 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 12571 transitions. Word has length 22 [2021-03-11 09:29:21,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:21,597 INFO L480 AbstractCegarLoop]: Abstraction has 3213 states and 12571 transitions. [2021-03-11 09:29:21,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 12571 transitions. [2021-03-11 09:29:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-11 09:29:21,599 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:21,599 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:21,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 09:29:21,599 INFO L428 AbstractCegarLoop]: === Iteration 33 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:21,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:21,599 INFO L82 PathProgramCache]: Analyzing trace with hash 384717901, now seen corresponding path program 2 times [2021-03-11 09:29:21,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:21,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918023752] [2021-03-11 09:29:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:21,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:21,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:21,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:21,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:21,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 09:29:21,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:21,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:21,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:21,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:21,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:21,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918023752] [2021-03-11 09:29:21,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:21,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:21,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041711541] [2021-03-11 09:29:21,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 09:29:21,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:21,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 09:29:21,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:21,697 INFO L87 Difference]: Start difference. First operand 3213 states and 12571 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:21,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:21,946 INFO L93 Difference]: Finished difference Result 4247 states and 16203 transitions. [2021-03-11 09:29:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 09:29:21,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-11 09:29:21,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:21,954 INFO L225 Difference]: With dead ends: 4247 [2021-03-11 09:29:21,954 INFO L226 Difference]: Without dead ends: 4187 [2021-03-11 09:29:21,955 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 186.2ms TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-03-11 09:29:21,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2021-03-11 09:29:21,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 3207. [2021-03-11 09:29:21,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3205 states have (on average 3.917940717628705) internal successors, (12557), 3206 states have internal predecessors, (12557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 12557 transitions. [2021-03-11 09:29:22,000 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 12557 transitions. Word has length 22 [2021-03-11 09:29:22,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:22,000 INFO L480 AbstractCegarLoop]: Abstraction has 3207 states and 12557 transitions. [2021-03-11 09:29:22,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 12557 transitions. [2021-03-11 09:29:22,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-11 09:29:22,002 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:22,002 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:22,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 09:29:22,002 INFO L428 AbstractCegarLoop]: === Iteration 34 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:22,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1399286563, now seen corresponding path program 3 times [2021-03-11 09:29:22,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:22,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180607883] [2021-03-11 09:29:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:22,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:22,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:22,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:22,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:22,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:22,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:22,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:22,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:22,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:22,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:22,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180607883] [2021-03-11 09:29:22,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:22,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 09:29:22,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369369093] [2021-03-11 09:29:22,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 09:29:22,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:22,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 09:29:22,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:22,067 INFO L87 Difference]: Start difference. First operand 3207 states and 12557 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:22,261 INFO L93 Difference]: Finished difference Result 4662 states and 17892 transitions. [2021-03-11 09:29:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:22,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-11 09:29:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:22,269 INFO L225 Difference]: With dead ends: 4662 [2021-03-11 09:29:22,269 INFO L226 Difference]: Without dead ends: 4602 [2021-03-11 09:29:22,269 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 121.6ms TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-03-11 09:29:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2021-03-11 09:29:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 3203. [2021-03-11 09:29:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3201 states have (on average 3.9197125898156826) internal successors, (12547), 3202 states have internal predecessors, (12547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 12547 transitions. [2021-03-11 09:29:22,317 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 12547 transitions. Word has length 22 [2021-03-11 09:29:22,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:22,317 INFO L480 AbstractCegarLoop]: Abstraction has 3203 states and 12547 transitions. [2021-03-11 09:29:22,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 12547 transitions. [2021-03-11 09:29:22,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-11 09:29:22,319 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:22,319 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:22,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 09:29:22,319 INFO L428 AbstractCegarLoop]: === Iteration 35 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:22,319 INFO L82 PathProgramCache]: Analyzing trace with hash -613612619, now seen corresponding path program 4 times [2021-03-11 09:29:22,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:22,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444614539] [2021-03-11 09:29:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:22,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:22,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:22,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:22,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:22,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:22,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:22,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:22,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:22,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444614539] [2021-03-11 09:29:22,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:22,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 09:29:22,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118296965] [2021-03-11 09:29:22,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 09:29:22,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:22,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 09:29:22,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:22,386 INFO L87 Difference]: Start difference. First operand 3203 states and 12547 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:22,556 INFO L93 Difference]: Finished difference Result 3818 states and 14611 transitions. [2021-03-11 09:29:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:22,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-11 09:29:22,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:22,564 INFO L225 Difference]: With dead ends: 3818 [2021-03-11 09:29:22,564 INFO L226 Difference]: Without dead ends: 3758 [2021-03-11 09:29:22,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 110.8ms TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:22,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2021-03-11 09:29:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3115. [2021-03-11 09:29:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3113 states have (on average 3.9135881786058464) internal successors, (12183), 3114 states have internal predecessors, (12183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 12183 transitions. [2021-03-11 09:29:22,614 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 12183 transitions. Word has length 22 [2021-03-11 09:29:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:22,614 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 12183 transitions. [2021-03-11 09:29:22,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 12183 transitions. [2021-03-11 09:29:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-11 09:29:22,616 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:22,616 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:22,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 09:29:22,616 INFO L428 AbstractCegarLoop]: === Iteration 36 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:22,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1098432713, now seen corresponding path program 5 times [2021-03-11 09:29:22,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:22,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826558998] [2021-03-11 09:29:22,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:22,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:22,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 09:29:22,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:22,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:22,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:22,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:22,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:22,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:22,810 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:22,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:22,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:22,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:22,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:22,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826558998] [2021-03-11 09:29:22,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:22,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:22,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805857727] [2021-03-11 09:29:22,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:22,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:22,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:22,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:22,828 INFO L87 Difference]: Start difference. First operand 3115 states and 12183 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:23,331 INFO L93 Difference]: Finished difference Result 3983 states and 15101 transitions. [2021-03-11 09:29:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 09:29:23,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-11 09:29:23,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:23,339 INFO L225 Difference]: With dead ends: 3983 [2021-03-11 09:29:23,340 INFO L226 Difference]: Without dead ends: 3923 [2021-03-11 09:29:23,340 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 423.2ms TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-03-11 09:29:23,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2021-03-11 09:29:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3059. [2021-03-11 09:29:23,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 3057 states have (on average 3.8832188420019627) internal successors, (11871), 3058 states have internal predecessors, (11871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 11871 transitions. [2021-03-11 09:29:23,391 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 11871 transitions. Word has length 22 [2021-03-11 09:29:23,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:23,391 INFO L480 AbstractCegarLoop]: Abstraction has 3059 states and 11871 transitions. [2021-03-11 09:29:23,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 11871 transitions. [2021-03-11 09:29:23,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-03-11 09:29:23,393 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:23,393 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:23,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 09:29:23,393 INFO L428 AbstractCegarLoop]: === Iteration 37 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:23,393 INFO L82 PathProgramCache]: Analyzing trace with hash -100029075, now seen corresponding path program 1 times [2021-03-11 09:29:23,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:23,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431086417] [2021-03-11 09:29:23,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:23,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:23,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:23,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:23,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:23,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:23,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:23,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:23,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:23,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:23,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:23,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431086417] [2021-03-11 09:29:23,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:23,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:23,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277061570] [2021-03-11 09:29:23,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:23,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:23,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:23,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:23,522 INFO L87 Difference]: Start difference. First operand 3059 states and 11871 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:23,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:23,877 INFO L93 Difference]: Finished difference Result 3873 states and 14995 transitions. [2021-03-11 09:29:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:23,878 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-03-11 09:29:23,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:23,885 INFO L225 Difference]: With dead ends: 3873 [2021-03-11 09:29:23,886 INFO L226 Difference]: Without dead ends: 3827 [2021-03-11 09:29:23,886 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 265.6ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-03-11 09:29:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2021-03-11 09:29:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3221. [2021-03-11 09:29:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 3219 states have (on average 3.9453246349798072) internal successors, (12700), 3220 states have internal predecessors, (12700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 12700 transitions. [2021-03-11 09:29:23,940 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 12700 transitions. Word has length 23 [2021-03-11 09:29:23,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:23,940 INFO L480 AbstractCegarLoop]: Abstraction has 3221 states and 12700 transitions. [2021-03-11 09:29:23,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 12700 transitions. [2021-03-11 09:29:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-03-11 09:29:23,942 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:23,942 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:23,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 09:29:23,942 INFO L428 AbstractCegarLoop]: === Iteration 38 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:23,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:23,943 INFO L82 PathProgramCache]: Analyzing trace with hash 3345695, now seen corresponding path program 1 times [2021-03-11 09:29:23,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:23,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761976775] [2021-03-11 09:29:23,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:23,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:23,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:23,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:24,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:24,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:24,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 09:29:24,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:24,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:24,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:24,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:24,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:24,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761976775] [2021-03-11 09:29:24,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:24,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:24,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422938828] [2021-03-11 09:29:24,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:24,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:24,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:24,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:24,106 INFO L87 Difference]: Start difference. First operand 3221 states and 12700 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:24,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:24,474 INFO L93 Difference]: Finished difference Result 4022 states and 15271 transitions. [2021-03-11 09:29:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:24,475 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-03-11 09:29:24,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:24,483 INFO L225 Difference]: With dead ends: 4022 [2021-03-11 09:29:24,483 INFO L226 Difference]: Without dead ends: 3965 [2021-03-11 09:29:24,483 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 316.5ms TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-03-11 09:29:24,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2021-03-11 09:29:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3019. [2021-03-11 09:29:24,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 3017 states have (on average 3.882996353994034) internal successors, (11715), 3018 states have internal predecessors, (11715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:24,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 11715 transitions. [2021-03-11 09:29:24,525 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 11715 transitions. Word has length 23 [2021-03-11 09:29:24,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:24,525 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 11715 transitions. [2021-03-11 09:29:24,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 11715 transitions. [2021-03-11 09:29:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-03-11 09:29:24,527 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:24,527 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:24,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 09:29:24,527 INFO L428 AbstractCegarLoop]: === Iteration 39 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:24,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1612016257, now seen corresponding path program 2 times [2021-03-11 09:29:24,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:24,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718506961] [2021-03-11 09:29:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:24,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:24,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 09:29:24,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 09:29:24,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:24,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:24,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:24,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:24,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:24,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:24,691 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:24,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:24,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:24,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:24,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:24,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:24,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718506961] [2021-03-11 09:29:24,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:24,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 09:29:24,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644370671] [2021-03-11 09:29:24,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 09:29:24,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:24,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 09:29:24,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:24,712 INFO L87 Difference]: Start difference. First operand 3019 states and 11715 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:25,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:25,275 INFO L93 Difference]: Finished difference Result 4130 states and 15783 transitions. [2021-03-11 09:29:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 09:29:25,276 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-03-11 09:29:25,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:25,283 INFO L225 Difference]: With dead ends: 4130 [2021-03-11 09:29:25,283 INFO L226 Difference]: Without dead ends: 4036 [2021-03-11 09:29:25,284 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 491.2ms TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-03-11 09:29:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2021-03-11 09:29:25,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 2901. [2021-03-11 09:29:25,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2899 states have (on average 3.9448085546740255) internal successors, (11436), 2900 states have internal predecessors, (11436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 11436 transitions. [2021-03-11 09:29:25,329 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 11436 transitions. Word has length 23 [2021-03-11 09:29:25,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:25,329 INFO L480 AbstractCegarLoop]: Abstraction has 2901 states and 11436 transitions. [2021-03-11 09:29:25,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 11436 transitions. [2021-03-11 09:29:25,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-03-11 09:29:25,331 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:25,331 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:25,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 09:29:25,331 INFO L428 AbstractCegarLoop]: === Iteration 40 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:25,331 INFO L82 PathProgramCache]: Analyzing trace with hash 523454291, now seen corresponding path program 2 times [2021-03-11 09:29:25,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:25,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650266995] [2021-03-11 09:29:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:25,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:25,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 09:29:25,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 09:29:25,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:25,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:25,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 09:29:25,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 09:29:25,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:25,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:25,502 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:25,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:25,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:25,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:25,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:25,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650266995] [2021-03-11 09:29:25,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:25,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 09:29:25,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554658114] [2021-03-11 09:29:25,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 09:29:25,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:25,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 09:29:25,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:25,520 INFO L87 Difference]: Start difference. First operand 2901 states and 11436 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:26,006 INFO L93 Difference]: Finished difference Result 3415 states and 12445 transitions. [2021-03-11 09:29:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 09:29:26,006 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-03-11 09:29:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:26,012 INFO L225 Difference]: With dead ends: 3415 [2021-03-11 09:29:26,012 INFO L226 Difference]: Without dead ends: 3296 [2021-03-11 09:29:26,012 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 442.5ms TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2021-03-11 09:29:26,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2021-03-11 09:29:26,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 2308. [2021-03-11 09:29:26,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2308 states, 2306 states have (on average 3.633998265394623) internal successors, (8380), 2307 states have internal predecessors, (8380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 8380 transitions. [2021-03-11 09:29:26,043 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 8380 transitions. Word has length 23 [2021-03-11 09:29:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:26,043 INFO L480 AbstractCegarLoop]: Abstraction has 2308 states and 8380 transitions. [2021-03-11 09:29:26,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 8380 transitions. [2021-03-11 09:29:26,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-03-11 09:29:26,045 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:26,045 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:26,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 09:29:26,045 INFO L428 AbstractCegarLoop]: === Iteration 41 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:26,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:26,045 INFO L82 PathProgramCache]: Analyzing trace with hash -462200904, now seen corresponding path program 1 times [2021-03-11 09:29:26,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:26,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668411584] [2021-03-11 09:29:26,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:26,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 09:29:26,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 09:29:26,089 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-03-11 09:29:26,089 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size 49 [2021-03-11 09:29:26,122 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.1 percent of original size [2021-03-11 09:29:26,123 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.0 percent of original size 45 [2021-03-11 09:29:26,157 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.3 percent of original size [2021-03-11 09:29:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:26,177 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-03-11 09:29:26,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:26,197 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-03-11 09:29:26,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:26,206 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.9 percent of original size [2021-03-11 09:29:26,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 09:29:26,226 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-03-11 09:29:26,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:26,249 INFO L142 QuantifierPusher]: treesize reduction 18, result has 41.9 percent of original size [2021-03-11 09:29:26,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:26,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:26,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:26,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:26,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668411584] [2021-03-11 09:29:26,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:26,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:26,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465175855] [2021-03-11 09:29:26,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:26,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:26,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:26,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:26,278 INFO L87 Difference]: Start difference. First operand 2308 states and 8380 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:26,741 INFO L93 Difference]: Finished difference Result 3077 states and 11124 transitions. [2021-03-11 09:29:26,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 09:29:26,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-03-11 09:29:26,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:26,746 INFO L225 Difference]: With dead ends: 3077 [2021-03-11 09:29:26,746 INFO L226 Difference]: Without dead ends: 3031 [2021-03-11 09:29:26,747 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 496.7ms TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-03-11 09:29:26,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2021-03-11 09:29:26,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 1842. [2021-03-11 09:29:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1840 states have (on average 3.529891304347826) internal successors, (6495), 1841 states have internal predecessors, (6495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 6495 transitions. [2021-03-11 09:29:26,772 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 6495 transitions. Word has length 23 [2021-03-11 09:29:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:26,772 INFO L480 AbstractCegarLoop]: Abstraction has 1842 states and 6495 transitions. [2021-03-11 09:29:26,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 6495 transitions. [2021-03-11 09:29:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:26,773 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:26,773 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:26,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 09:29:26,773 INFO L428 AbstractCegarLoop]: === Iteration 42 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:26,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:26,774 INFO L82 PathProgramCache]: Analyzing trace with hash 418515043, now seen corresponding path program 1 times [2021-03-11 09:29:26,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:26,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003279050] [2021-03-11 09:29:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:26,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:26,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 09:29:26,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:26,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:26,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:26,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003279050] [2021-03-11 09:29:26,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:26,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 09:29:26,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116495006] [2021-03-11 09:29:26,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 09:29:26,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:26,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 09:29:26,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:29:26,800 INFO L87 Difference]: Start difference. First operand 1842 states and 6495 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:26,895 INFO L93 Difference]: Finished difference Result 2339 states and 7931 transitions. [2021-03-11 09:29:26,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 09:29:26,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:26,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:26,899 INFO L225 Difference]: With dead ends: 2339 [2021-03-11 09:29:26,899 INFO L226 Difference]: Without dead ends: 2275 [2021-03-11 09:29:26,899 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2021-03-11 09:29:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2154. [2021-03-11 09:29:26,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 2152 states have (on average 3.479089219330855) internal successors, (7487), 2153 states have internal predecessors, (7487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 7487 transitions. [2021-03-11 09:29:26,924 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 7487 transitions. Word has length 24 [2021-03-11 09:29:26,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:26,924 INFO L480 AbstractCegarLoop]: Abstraction has 2154 states and 7487 transitions. [2021-03-11 09:29:26,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:26,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 7487 transitions. [2021-03-11 09:29:26,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:26,926 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:26,926 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:26,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 09:29:26,926 INFO L428 AbstractCegarLoop]: === Iteration 43 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:26,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:26,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2138761247, now seen corresponding path program 2 times [2021-03-11 09:29:26,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:26,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342211456] [2021-03-11 09:29:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:26,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:26,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:26,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:26,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 09:29:26,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:26,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:26,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:26,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:26,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342211456] [2021-03-11 09:29:26,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:26,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 09:29:26,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791365027] [2021-03-11 09:29:26,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:26,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:26,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:26,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:26,979 INFO L87 Difference]: Start difference. First operand 2154 states and 7487 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:27,164 INFO L93 Difference]: Finished difference Result 2647 states and 8917 transitions. [2021-03-11 09:29:27,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 09:29:27,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:27,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:27,169 INFO L225 Difference]: With dead ends: 2647 [2021-03-11 09:29:27,169 INFO L226 Difference]: Without dead ends: 2583 [2021-03-11 09:29:27,169 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:27,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2021-03-11 09:29:27,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2150. [2021-03-11 09:29:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2148 states have (on average 3.4827746741154564) internal successors, (7481), 2149 states have internal predecessors, (7481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 7481 transitions. [2021-03-11 09:29:27,199 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 7481 transitions. Word has length 24 [2021-03-11 09:29:27,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:27,200 INFO L480 AbstractCegarLoop]: Abstraction has 2150 states and 7481 transitions. [2021-03-11 09:29:27,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 7481 transitions. [2021-03-11 09:29:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:27,202 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:27,202 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:27,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 09:29:27,202 INFO L428 AbstractCegarLoop]: === Iteration 44 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:27,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:27,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1854608807, now seen corresponding path program 3 times [2021-03-11 09:29:27,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:27,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414749885] [2021-03-11 09:29:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:27,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:27,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:27,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:27,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:27,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 09:29:27,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:27,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:27,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:27,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:27,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414749885] [2021-03-11 09:29:27,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:27,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:27,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203887318] [2021-03-11 09:29:27,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 09:29:27,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:27,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 09:29:27,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 09:29:27,273 INFO L87 Difference]: Start difference. First operand 2150 states and 7481 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:27,493 INFO L93 Difference]: Finished difference Result 2946 states and 9885 transitions. [2021-03-11 09:29:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 09:29:27,494 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:27,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:27,498 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 09:29:27,498 INFO L226 Difference]: Without dead ends: 2882 [2021-03-11 09:29:27,498 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 166.4ms TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-03-11 09:29:27,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-03-11 09:29:27,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2141. [2021-03-11 09:29:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 2139 states have (on average 3.4890135577372603) internal successors, (7463), 2140 states have internal predecessors, (7463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 7463 transitions. [2021-03-11 09:29:27,535 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 7463 transitions. Word has length 24 [2021-03-11 09:29:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:27,536 INFO L480 AbstractCegarLoop]: Abstraction has 2141 states and 7463 transitions. [2021-03-11 09:29:27,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 7463 transitions. [2021-03-11 09:29:27,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:27,537 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:27,537 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:27,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 09:29:27,537 INFO L428 AbstractCegarLoop]: === Iteration 45 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:27,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1811700817, now seen corresponding path program 4 times [2021-03-11 09:29:27,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:27,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022674927] [2021-03-11 09:29:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:27,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:27,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:27,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:27,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:27,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:27,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 09:29:27,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:27,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:27,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:27,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:27,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022674927] [2021-03-11 09:29:27,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:27,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 09:29:27,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374133538] [2021-03-11 09:29:27,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 09:29:27,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:27,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 09:29:27,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-11 09:29:27,627 INFO L87 Difference]: Start difference. First operand 2141 states and 7463 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:27,917 INFO L93 Difference]: Finished difference Result 2923 states and 9826 transitions. [2021-03-11 09:29:27,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 09:29:27,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:27,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:27,922 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 09:29:27,922 INFO L226 Difference]: Without dead ends: 2859 [2021-03-11 09:29:27,923 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 198.8ms TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-03-11 09:29:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2021-03-11 09:29:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2127. [2021-03-11 09:29:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2125 states have (on average 3.4927058823529413) internal successors, (7422), 2126 states have internal predecessors, (7422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 7422 transitions. [2021-03-11 09:29:27,949 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 7422 transitions. Word has length 24 [2021-03-11 09:29:27,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:27,949 INFO L480 AbstractCegarLoop]: Abstraction has 2127 states and 7422 transitions. [2021-03-11 09:29:27,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:27,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 7422 transitions. [2021-03-11 09:29:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:27,951 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:27,951 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:27,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 09:29:27,951 INFO L428 AbstractCegarLoop]: === Iteration 46 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:27,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:27,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1411671717, now seen corresponding path program 5 times [2021-03-11 09:29:27,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:27,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301493173] [2021-03-11 09:29:27,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:27,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:27,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 09:29:27,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:27,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:28,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:28,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:28,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:28,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:28,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:28,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:28,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:28,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301493173] [2021-03-11 09:29:28,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:28,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:28,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180430406] [2021-03-11 09:29:28,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:28,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:28,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:28,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:28,046 INFO L87 Difference]: Start difference. First operand 2127 states and 7422 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:28,320 INFO L93 Difference]: Finished difference Result 3154 states and 10795 transitions. [2021-03-11 09:29:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:28,321 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:28,326 INFO L225 Difference]: With dead ends: 3154 [2021-03-11 09:29:28,326 INFO L226 Difference]: Without dead ends: 3090 [2021-03-11 09:29:28,326 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-03-11 09:29:28,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2021-03-11 09:29:28,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 2119. [2021-03-11 09:29:28,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2119 states, 2117 states have (on average 3.492678318375059) internal successors, (7394), 2118 states have internal predecessors, (7394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:28,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 7394 transitions. [2021-03-11 09:29:28,354 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 7394 transitions. Word has length 24 [2021-03-11 09:29:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:28,355 INFO L480 AbstractCegarLoop]: Abstraction has 2119 states and 7394 transitions. [2021-03-11 09:29:28,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 7394 transitions. [2021-03-11 09:29:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:28,356 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:28,356 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:28,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-11 09:29:28,356 INFO L428 AbstractCegarLoop]: === Iteration 47 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:28,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:28,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1713957591, now seen corresponding path program 6 times [2021-03-11 09:29:28,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:28,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284118343] [2021-03-11 09:29:28,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:28,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:28,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 09:29:28,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:28,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:28,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:28,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:28,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:28,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:28,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:28,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:28,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284118343] [2021-03-11 09:29:28,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:28,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:28,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559786528] [2021-03-11 09:29:28,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:28,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:28,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:28,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:28,440 INFO L87 Difference]: Start difference. First operand 2119 states and 7394 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:28,686 INFO L93 Difference]: Finished difference Result 2529 states and 8563 transitions. [2021-03-11 09:29:28,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:28,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:28,691 INFO L225 Difference]: With dead ends: 2529 [2021-03-11 09:29:28,691 INFO L226 Difference]: Without dead ends: 2465 [2021-03-11 09:29:28,691 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 122.2ms TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-03-11 09:29:28,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2021-03-11 09:29:28,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2087. [2021-03-11 09:29:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2085 states have (on average 3.484892086330935) internal successors, (7266), 2086 states have internal predecessors, (7266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:28,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 7266 transitions. [2021-03-11 09:29:28,716 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 7266 transitions. Word has length 24 [2021-03-11 09:29:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:28,716 INFO L480 AbstractCegarLoop]: Abstraction has 2087 states and 7266 transitions. [2021-03-11 09:29:28,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 7266 transitions. [2021-03-11 09:29:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:28,717 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:28,717 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:28,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-11 09:29:28,718 INFO L428 AbstractCegarLoop]: === Iteration 48 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:28,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:28,718 INFO L82 PathProgramCache]: Analyzing trace with hash 774440027, now seen corresponding path program 7 times [2021-03-11 09:29:28,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:28,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81369642] [2021-03-11 09:29:28,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:28,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 09:29:28,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 09:29:28,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:28,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:28,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:28,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:28,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:28,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:28,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 09:29:28,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:28,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:28,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:28,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81369642] [2021-03-11 09:29:28,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:28,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 09:29:28,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274452262] [2021-03-11 09:29:28,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 09:29:28,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:28,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 09:29:28,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:28,898 INFO L87 Difference]: Start difference. First operand 2087 states and 7266 transitions. Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:29,421 INFO L93 Difference]: Finished difference Result 3066 states and 10377 transitions. [2021-03-11 09:29:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 09:29:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:29,426 INFO L225 Difference]: With dead ends: 3066 [2021-03-11 09:29:29,426 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 09:29:29,426 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 480.6ms TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-03-11 09:29:29,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 09:29:29,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2019. [2021-03-11 09:29:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2017 states have (on average 3.5151214675260287) internal successors, (7090), 2018 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 7090 transitions. [2021-03-11 09:29:29,453 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 7090 transitions. Word has length 24 [2021-03-11 09:29:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:29,453 INFO L480 AbstractCegarLoop]: Abstraction has 2019 states and 7090 transitions. [2021-03-11 09:29:29,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 7090 transitions. [2021-03-11 09:29:29,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:29,454 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:29,454 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:29,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-11 09:29:29,454 INFO L428 AbstractCegarLoop]: === Iteration 49 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:29,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:29,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1360362423, now seen corresponding path program 1 times [2021-03-11 09:29:29,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:29,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330741513] [2021-03-11 09:29:29,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:29,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:29,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 09:29:29,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:29,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:29,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:29,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:29,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:29,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 09:29:29,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:29,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:29,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:29,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:29,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330741513] [2021-03-11 09:29:29,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:29,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:29,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28662711] [2021-03-11 09:29:29,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:29,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:29,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:29,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:29,584 INFO L87 Difference]: Start difference. First operand 2019 states and 7090 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:30,153 INFO L93 Difference]: Finished difference Result 3849 states and 13271 transitions. [2021-03-11 09:29:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 09:29:30,154 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:30,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:30,160 INFO L225 Difference]: With dead ends: 3849 [2021-03-11 09:29:30,160 INFO L226 Difference]: Without dead ends: 3825 [2021-03-11 09:29:30,161 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 422.0ms TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2021-03-11 09:29:30,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2021-03-11 09:29:30,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 2029. [2021-03-11 09:29:30,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2027 states have (on average 3.5071534287123827) internal successors, (7109), 2028 states have internal predecessors, (7109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 7109 transitions. [2021-03-11 09:29:30,192 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 7109 transitions. Word has length 24 [2021-03-11 09:29:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:30,192 INFO L480 AbstractCegarLoop]: Abstraction has 2029 states and 7109 transitions. [2021-03-11 09:29:30,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 7109 transitions. [2021-03-11 09:29:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:30,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:30,194 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:30,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-11 09:29:30,194 INFO L428 AbstractCegarLoop]: === Iteration 50 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:30,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:30,195 INFO L82 PathProgramCache]: Analyzing trace with hash 921705691, now seen corresponding path program 2 times [2021-03-11 09:29:30,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:30,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791637330] [2021-03-11 09:29:30,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:30,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:30,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 09:29:30,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:30,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:30,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:30,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:30,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:30,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 09:29:30,310 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:30,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:30,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:30,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:30,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791637330] [2021-03-11 09:29:30,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:30,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:30,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501915013] [2021-03-11 09:29:30,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:30,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:30,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:30,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:30,326 INFO L87 Difference]: Start difference. First operand 2029 states and 7109 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:30,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:30,842 INFO L93 Difference]: Finished difference Result 2815 states and 9582 transitions. [2021-03-11 09:29:30,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 09:29:30,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:30,847 INFO L225 Difference]: With dead ends: 2815 [2021-03-11 09:29:30,847 INFO L226 Difference]: Without dead ends: 2791 [2021-03-11 09:29:30,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 401.9ms TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2021-03-11 09:29:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2021-03-11 09:29:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2033. [2021-03-11 09:29:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 2031 states have (on average 3.507139340226489) internal successors, (7123), 2032 states have internal predecessors, (7123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 7123 transitions. [2021-03-11 09:29:30,873 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 7123 transitions. Word has length 24 [2021-03-11 09:29:30,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:30,873 INFO L480 AbstractCegarLoop]: Abstraction has 2033 states and 7123 transitions. [2021-03-11 09:29:30,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:30,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 7123 transitions. [2021-03-11 09:29:30,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:30,875 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:30,875 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:30,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-11 09:29:30,875 INFO L428 AbstractCegarLoop]: === Iteration 51 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:30,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:30,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1839110659, now seen corresponding path program 3 times [2021-03-11 09:29:30,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:30,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787915399] [2021-03-11 09:29:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:30,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 09:29:30,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:30,907 INFO L142 QuantifierPusher]: treesize reduction 23, result has 61.0 percent of original size [2021-03-11 09:29:30,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 09:29:30,918 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-11 09:29:30,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:30,928 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.9 percent of original size [2021-03-11 09:29:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:30,938 INFO L142 QuantifierPusher]: treesize reduction 23, result has 51.1 percent of original size [2021-03-11 09:29:30,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:30,948 INFO L142 QuantifierPusher]: treesize reduction 23, result has 51.1 percent of original size [2021-03-11 09:29:30,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:30,955 INFO L142 QuantifierPusher]: treesize reduction 23, result has 34.3 percent of original size [2021-03-11 09:29:30,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 09:29:30,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:30,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:30,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:30,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:30,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787915399] [2021-03-11 09:29:30,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:30,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:30,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985956146] [2021-03-11 09:29:30,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:30,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:30,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:30,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:30,978 INFO L87 Difference]: Start difference. First operand 2033 states and 7123 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:31,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:31,305 INFO L93 Difference]: Finished difference Result 3934 states and 13665 transitions. [2021-03-11 09:29:31,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:31,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:31,313 INFO L225 Difference]: With dead ends: 3934 [2021-03-11 09:29:31,313 INFO L226 Difference]: Without dead ends: 3910 [2021-03-11 09:29:31,314 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 178.5ms TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-03-11 09:29:31,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2021-03-11 09:29:31,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 2025. [2021-03-11 09:29:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2025 states, 2023 states have (on average 3.514087988136431) internal successors, (7109), 2024 states have internal predecessors, (7109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:31,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 7109 transitions. [2021-03-11 09:29:31,351 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 7109 transitions. Word has length 24 [2021-03-11 09:29:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:31,351 INFO L480 AbstractCegarLoop]: Abstraction has 2025 states and 7109 transitions. [2021-03-11 09:29:31,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:31,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 7109 transitions. [2021-03-11 09:29:31,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-11 09:29:31,353 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:31,354 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:31,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-11 09:29:31,354 INFO L428 AbstractCegarLoop]: === Iteration 52 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:31,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:31,354 INFO L82 PathProgramCache]: Analyzing trace with hash 442957455, now seen corresponding path program 4 times [2021-03-11 09:29:31,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:31,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183265501] [2021-03-11 09:29:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:31,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:31,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 09:29:31,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:31,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:31,397 INFO L142 QuantifierPusher]: treesize reduction 23, result has 61.0 percent of original size [2021-03-11 09:29:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 09:29:31,408 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-11 09:29:31,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:31,418 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.9 percent of original size [2021-03-11 09:29:31,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:31,429 INFO L142 QuantifierPusher]: treesize reduction 23, result has 51.1 percent of original size [2021-03-11 09:29:31,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:31,439 INFO L142 QuantifierPusher]: treesize reduction 23, result has 51.1 percent of original size [2021-03-11 09:29:31,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:31,446 INFO L142 QuantifierPusher]: treesize reduction 23, result has 34.3 percent of original size [2021-03-11 09:29:31,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 09:29:31,457 INFO L142 QuantifierPusher]: treesize reduction 23, result has 36.1 percent of original size [2021-03-11 09:29:31,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 09:29:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:31,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:31,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:31,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:31,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183265501] [2021-03-11 09:29:31,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:31,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 09:29:31,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913294106] [2021-03-11 09:29:31,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 09:29:31,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:31,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 09:29:31,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-11 09:29:31,473 INFO L87 Difference]: Start difference. First operand 2025 states and 7109 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:31,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:31,739 INFO L93 Difference]: Finished difference Result 3008 states and 10429 transitions. [2021-03-11 09:29:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:31,740 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-11 09:29:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:31,745 INFO L225 Difference]: With dead ends: 3008 [2021-03-11 09:29:31,745 INFO L226 Difference]: Without dead ends: 2984 [2021-03-11 09:29:31,745 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 160.3ms TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-03-11 09:29:31,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2021-03-11 09:29:31,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2005. [2021-03-11 09:29:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 2003 states have (on average 3.5217174238642035) internal successors, (7054), 2004 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 7054 transitions. [2021-03-11 09:29:31,772 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 7054 transitions. Word has length 24 [2021-03-11 09:29:31,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:31,772 INFO L480 AbstractCegarLoop]: Abstraction has 2005 states and 7054 transitions. [2021-03-11 09:29:31,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:31,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 7054 transitions. [2021-03-11 09:29:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-03-11 09:29:31,774 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:31,774 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:31,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-11 09:29:31,774 INFO L428 AbstractCegarLoop]: === Iteration 53 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:31,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:31,774 INFO L82 PathProgramCache]: Analyzing trace with hash 250198279, now seen corresponding path program 1 times [2021-03-11 09:29:31,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:31,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013406161] [2021-03-11 09:29:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:31,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:31,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 09:29:31,799 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.6 percent of original size [2021-03-11 09:29:31,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 09:29:31,814 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.1 percent of original size [2021-03-11 09:29:31,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 09:29:31,830 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-11 09:29:31,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:31,846 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.3 percent of original size [2021-03-11 09:29:31,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:31,862 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-11 09:29:31,863 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size 37 [2021-03-11 09:29:31,892 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-11 09:29:31,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:31,912 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-11 09:29:31,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:31,923 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.9 percent of original size [2021-03-11 09:29:31,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:31,943 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-11 09:29:31,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:31,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:31,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:31,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:31,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013406161] [2021-03-11 09:29:31,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:31,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:31,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024196195] [2021-03-11 09:29:31,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:31,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:31,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:31,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:31,962 INFO L87 Difference]: Start difference. First operand 2005 states and 7054 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:32,420 INFO L93 Difference]: Finished difference Result 2627 states and 9048 transitions. [2021-03-11 09:29:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 09:29:32,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-03-11 09:29:32,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:32,425 INFO L225 Difference]: With dead ends: 2627 [2021-03-11 09:29:32,425 INFO L226 Difference]: Without dead ends: 2604 [2021-03-11 09:29:32,426 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 460.6ms TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2021-03-11 09:29:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2021-03-11 09:29:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 1613. [2021-03-11 09:29:32,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1611 states have (on average 3.453134698944755) internal successors, (5563), 1612 states have internal predecessors, (5563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:32,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 5563 transitions. [2021-03-11 09:29:32,447 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 5563 transitions. Word has length 25 [2021-03-11 09:29:32,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:32,447 INFO L480 AbstractCegarLoop]: Abstraction has 1613 states and 5563 transitions. [2021-03-11 09:29:32,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 5563 transitions. [2021-03-11 09:29:32,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-11 09:29:32,449 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:32,449 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:32,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-11 09:29:32,449 INFO L428 AbstractCegarLoop]: === Iteration 54 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:32,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:32,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1407476881, now seen corresponding path program 1 times [2021-03-11 09:29:32,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:32,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057336179] [2021-03-11 09:29:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:32,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:32,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 09:29:32,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 09:29:32,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:32,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:32,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:32,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:32,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:32,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 09:29:32,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:32,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:32,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:32,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:32,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057336179] [2021-03-11 09:29:32,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:32,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 09:29:32,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019052469] [2021-03-11 09:29:32,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 09:29:32,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:32,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 09:29:32,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:32,603 INFO L87 Difference]: Start difference. First operand 1613 states and 5563 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:33,179 INFO L93 Difference]: Finished difference Result 3265 states and 10881 transitions. [2021-03-11 09:29:33,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 09:29:33,179 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-11 09:29:33,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:33,185 INFO L225 Difference]: With dead ends: 3265 [2021-03-11 09:29:33,185 INFO L226 Difference]: Without dead ends: 3221 [2021-03-11 09:29:33,185 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 476.9ms TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2021-03-11 09:29:33,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2021-03-11 09:29:33,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 1627. [2021-03-11 09:29:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1625 states have (on average 3.452923076923077) internal successors, (5611), 1626 states have internal predecessors, (5611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 5611 transitions. [2021-03-11 09:29:33,209 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 5611 transitions. Word has length 26 [2021-03-11 09:29:33,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:33,209 INFO L480 AbstractCegarLoop]: Abstraction has 1627 states and 5611 transitions. [2021-03-11 09:29:33,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:33,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 5611 transitions. [2021-03-11 09:29:33,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-11 09:29:33,211 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:33,211 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:33,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-11 09:29:33,211 INFO L428 AbstractCegarLoop]: === Iteration 55 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:33,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:33,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1105191007, now seen corresponding path program 2 times [2021-03-11 09:29:33,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:33,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699582475] [2021-03-11 09:29:33,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:33,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 09:29:33,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 09:29:33,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 09:29:33,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 09:29:33,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:33,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 09:29:33,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:33,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 09:29:33,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 09:29:33,351 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-03-11 09:29:33,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:33,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:33,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:33,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:33,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699582475] [2021-03-11 09:29:33,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:33,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 09:29:33,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107539555] [2021-03-11 09:29:33,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 09:29:33,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:33,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 09:29:33,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-03-11 09:29:33,370 INFO L87 Difference]: Start difference. First operand 1627 states and 5611 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:33,919 INFO L93 Difference]: Finished difference Result 2806 states and 9323 transitions. [2021-03-11 09:29:33,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 09:29:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-11 09:29:33,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:33,924 INFO L225 Difference]: With dead ends: 2806 [2021-03-11 09:29:33,924 INFO L226 Difference]: Without dead ends: 2762 [2021-03-11 09:29:33,924 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 481.8ms TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2021-03-11 09:29:33,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2021-03-11 09:29:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1627. [2021-03-11 09:29:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1625 states have (on average 3.452923076923077) internal successors, (5611), 1626 states have internal predecessors, (5611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 5611 transitions. [2021-03-11 09:29:33,948 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 5611 transitions. Word has length 26 [2021-03-11 09:29:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:33,948 INFO L480 AbstractCegarLoop]: Abstraction has 1627 states and 5611 transitions. [2021-03-11 09:29:33,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:33,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 5611 transitions. [2021-03-11 09:29:33,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-11 09:29:33,949 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:33,950 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:33,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-11 09:29:33,950 INFO L428 AbstractCegarLoop]: === Iteration 56 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:33,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:33,950 INFO L82 PathProgramCache]: Analyzing trace with hash 650396389, now seen corresponding path program 3 times [2021-03-11 09:29:33,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:33,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283965273] [2021-03-11 09:29:33,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:33,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 09:29:33,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:33,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:33,985 INFO L142 QuantifierPusher]: treesize reduction 18, result has 71.4 percent of original size [2021-03-11 09:29:33,986 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size 40 [2021-03-11 09:29:34,007 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 09:29:34,008 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.8 percent of original size 36 [2021-03-11 09:29:34,029 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-11 09:29:34,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:34,042 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-03-11 09:29:34,042 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-11 09:29:34,063 INFO L142 QuantifierPusher]: treesize reduction 19, result has 55.8 percent of original size [2021-03-11 09:29:34,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:34,077 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-11 09:29:34,077 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-03-11 09:29:34,087 INFO L142 QuantifierPusher]: treesize reduction 17, result has 29.2 percent of original size [2021-03-11 09:29:34,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:34,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:34,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:34,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:34,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283965273] [2021-03-11 09:29:34,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:34,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:34,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617816077] [2021-03-11 09:29:34,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:34,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:34,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:34,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:34,115 INFO L87 Difference]: Start difference. First operand 1627 states and 5611 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:34,403 INFO L93 Difference]: Finished difference Result 2258 states and 7521 transitions. [2021-03-11 09:29:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 09:29:34,404 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-11 09:29:34,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:34,407 INFO L225 Difference]: With dead ends: 2258 [2021-03-11 09:29:34,407 INFO L226 Difference]: Without dead ends: 2214 [2021-03-11 09:29:34,407 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 289.0ms TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-03-11 09:29:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2021-03-11 09:29:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1597. [2021-03-11 09:29:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1595 states have (on average 3.4746081504702193) internal successors, (5542), 1596 states have internal predecessors, (5542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:34,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 5542 transitions. [2021-03-11 09:29:34,426 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 5542 transitions. Word has length 26 [2021-03-11 09:29:34,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:34,427 INFO L480 AbstractCegarLoop]: Abstraction has 1597 states and 5542 transitions. [2021-03-11 09:29:34,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:34,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 5542 transitions. [2021-03-11 09:29:34,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-11 09:29:34,428 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:34,428 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:34,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-11 09:29:34,428 INFO L428 AbstractCegarLoop]: === Iteration 57 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:34,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:34,429 INFO L82 PathProgramCache]: Analyzing trace with hash 348110515, now seen corresponding path program 4 times [2021-03-11 09:29:34,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:34,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033121464] [2021-03-11 09:29:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:34,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 09:29:34,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 09:29:34,466 INFO L142 QuantifierPusher]: treesize reduction 18, result has 71.4 percent of original size [2021-03-11 09:29:34,466 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size 40 [2021-03-11 09:29:34,487 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 09:29:34,487 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.8 percent of original size 36 [2021-03-11 09:29:34,506 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-11 09:29:34,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 09:29:34,517 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-03-11 09:29:34,517 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-11 09:29:34,535 INFO L142 QuantifierPusher]: treesize reduction 19, result has 55.8 percent of original size [2021-03-11 09:29:34,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 09:29:34,546 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-11 09:29:34,547 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-03-11 09:29:34,555 INFO L142 QuantifierPusher]: treesize reduction 17, result has 29.2 percent of original size [2021-03-11 09:29:34,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:29:34,564 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-11 09:29:34,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:34,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:34,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:34,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033121464] [2021-03-11 09:29:34,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:34,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 09:29:34,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552780318] [2021-03-11 09:29:34,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 09:29:34,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:34,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 09:29:34,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:34,579 INFO L87 Difference]: Start difference. First operand 1597 states and 5542 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:34,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:34,827 INFO L93 Difference]: Finished difference Result 1650 states and 5506 transitions. [2021-03-11 09:29:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 09:29:34,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-11 09:29:34,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:34,831 INFO L225 Difference]: With dead ends: 1650 [2021-03-11 09:29:34,831 INFO L226 Difference]: Without dead ends: 1606 [2021-03-11 09:29:34,831 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 251.5ms TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-03-11 09:29:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-03-11 09:29:34,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 885. [2021-03-11 09:29:34,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 3.430995475113122) internal successors, (3033), 884 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 3033 transitions. [2021-03-11 09:29:34,842 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 3033 transitions. Word has length 26 [2021-03-11 09:29:34,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:34,842 INFO L480 AbstractCegarLoop]: Abstraction has 885 states and 3033 transitions. [2021-03-11 09:29:34,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 3033 transitions. [2021-03-11 09:29:34,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-03-11 09:29:34,844 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:34,844 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:34,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-11 09:29:34,844 INFO L428 AbstractCegarLoop]: === Iteration 58 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:34,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1214446808, now seen corresponding path program 1 times [2021-03-11 09:29:34,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:34,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536669791] [2021-03-11 09:29:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:34,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:34,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:34,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:34,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:34,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:34,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:34,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:34,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:34,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 09:29:34,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:34,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:34,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:34,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536669791] [2021-03-11 09:29:34,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:34,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:34,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834558984] [2021-03-11 09:29:34,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:34,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:34,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:34,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:34,941 INFO L87 Difference]: Start difference. First operand 885 states and 3033 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:35,059 INFO L93 Difference]: Finished difference Result 885 states and 3029 transitions. [2021-03-11 09:29:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:35,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-03-11 09:29:35,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:35,061 INFO L225 Difference]: With dead ends: 885 [2021-03-11 09:29:35,061 INFO L226 Difference]: Without dead ends: 867 [2021-03-11 09:29:35,061 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:35,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2021-03-11 09:29:35,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2021-03-11 09:29:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 866 states have (on average 3.4180138568129332) internal successors, (2960), 866 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 2960 transitions. [2021-03-11 09:29:35,071 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 2960 transitions. Word has length 41 [2021-03-11 09:29:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:35,071 INFO L480 AbstractCegarLoop]: Abstraction has 867 states and 2960 transitions. [2021-03-11 09:29:35,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,071 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 2960 transitions. [2021-03-11 09:29:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-03-11 09:29:35,072 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:35,073 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:35,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-11 09:29:35,073 INFO L428 AbstractCegarLoop]: === Iteration 59 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:35,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:35,073 INFO L82 PathProgramCache]: Analyzing trace with hash -535749353, now seen corresponding path program 1 times [2021-03-11 09:29:35,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:35,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939167506] [2021-03-11 09:29:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:35,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:35,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:29:35,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:35,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 09:29:35,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:35,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:35,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:35,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 09:29:35,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 09:29:35,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:35,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:35,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939167506] [2021-03-11 09:29:35,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:35,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:35,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577618044] [2021-03-11 09:29:35,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:35,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:35,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:35,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:35,165 INFO L87 Difference]: Start difference. First operand 867 states and 2960 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:35,280 INFO L93 Difference]: Finished difference Result 867 states and 2956 transitions. [2021-03-11 09:29:35,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:35,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-03-11 09:29:35,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:35,281 INFO L225 Difference]: With dead ends: 867 [2021-03-11 09:29:35,282 INFO L226 Difference]: Without dead ends: 819 [2021-03-11 09:29:35,282 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:35,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2021-03-11 09:29:35,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2021-03-11 09:29:35,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 818 states have (on average 3.4034229828850857) internal successors, (2784), 818 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 2784 transitions. [2021-03-11 09:29:35,290 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 2784 transitions. Word has length 41 [2021-03-11 09:29:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:35,290 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 2784 transitions. [2021-03-11 09:29:35,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 2784 transitions. [2021-03-11 09:29:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-03-11 09:29:35,291 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:35,291 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:35,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-11 09:29:35,292 INFO L428 AbstractCegarLoop]: === Iteration 60 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:35,292 INFO L82 PathProgramCache]: Analyzing trace with hash -2080251729, now seen corresponding path program 1 times [2021-03-11 09:29:35,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:35,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647617197] [2021-03-11 09:29:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:35,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:35,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:35,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 09:29:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 09:29:35,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 09:29:35,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:35,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:35,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:35,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647617197] [2021-03-11 09:29:35,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:35,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:35,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911164338] [2021-03-11 09:29:35,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:35,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:35,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:35,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:35,401 INFO L87 Difference]: Start difference. First operand 819 states and 2784 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:35,574 INFO L93 Difference]: Finished difference Result 819 states and 2776 transitions. [2021-03-11 09:29:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:35,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-03-11 09:29:35,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:35,576 INFO L225 Difference]: With dead ends: 819 [2021-03-11 09:29:35,576 INFO L226 Difference]: Without dead ends: 735 [2021-03-11 09:29:35,576 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 181.4ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:35,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-03-11 09:29:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2021-03-11 09:29:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 3.3651226158038146) internal successors, (2470), 734 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 2470 transitions. [2021-03-11 09:29:35,583 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 2470 transitions. Word has length 41 [2021-03-11 09:29:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:35,584 INFO L480 AbstractCegarLoop]: Abstraction has 735 states and 2470 transitions. [2021-03-11 09:29:35,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 2470 transitions. [2021-03-11 09:29:35,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-03-11 09:29:35,585 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:35,585 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:35,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-11 09:29:35,585 INFO L428 AbstractCegarLoop]: === Iteration 61 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:35,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:35,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1332247229, now seen corresponding path program 1 times [2021-03-11 09:29:35,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:35,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750074039] [2021-03-11 09:29:35,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:29:35,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:35,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 09:29:35,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 09:29:35,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 09:29:35,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 09:29:35,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 09:29:35,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 09:29:35,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:29:35,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:29:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:29:35,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750074039] [2021-03-11 09:29:35,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:29:35,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 09:29:35,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985976320] [2021-03-11 09:29:35,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 09:29:35,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:29:35,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 09:29:35,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 09:29:35,686 INFO L87 Difference]: Start difference. First operand 735 states and 2470 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:29:35,849 INFO L93 Difference]: Finished difference Result 735 states and 2462 transitions. [2021-03-11 09:29:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 09:29:35,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-03-11 09:29:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:29:35,850 INFO L225 Difference]: With dead ends: 735 [2021-03-11 09:29:35,850 INFO L226 Difference]: Without dead ends: 495 [2021-03-11 09:29:35,851 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 182.4ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-03-11 09:29:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-03-11 09:29:35,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-03-11 09:29:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 3.251012145748988) internal successors, (1606), 494 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 1606 transitions. [2021-03-11 09:29:35,856 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 1606 transitions. Word has length 41 [2021-03-11 09:29:35,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:29:35,856 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 1606 transitions. [2021-03-11 09:29:35,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:29:35,856 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 1606 transitions. [2021-03-11 09:29:35,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-03-11 09:29:35,857 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:29:35,857 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:29:35,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-11 09:29:35,857 INFO L428 AbstractCegarLoop]: === Iteration 62 === [thread0Err6INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err4INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, thread0Thread1of1ForFork4Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err2INUSE_VIOLATION]=== [2021-03-11 09:29:35,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:29:35,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1798692926, now seen corresponding path program 1 times [2021-03-11 09:29:35,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:29:35,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67610665] [2021-03-11 09:29:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:29:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 09:29:35,867 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 09:29:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 09:29:35,878 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 09:29:35,903 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 09:29:35,903 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 09:29:35,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-11 09:29:35,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 09:29:35 BasicIcfg [2021-03-11 09:29:35,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 09:29:35,969 INFO L168 Benchmark]: Toolchain (without parser) took 34499.84 ms. Allocated memory was 255.9 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 235.3 MB in the beginning and 973.3 MB in the end (delta: -738.0 MB). Peak memory consumption was 940.7 MB. Max. memory is 16.0 GB. [2021-03-11 09:29:35,969 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:29:35,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.55 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 234.6 MB in the beginning and 357.3 MB in the end (delta: -122.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.0 GB. [2021-03-11 09:29:35,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.18 ms. Allocated memory is still 377.5 MB. Free memory was 357.3 MB in the beginning and 354.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-11 09:29:35,969 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 ms. Allocated memory is still 377.5 MB. Free memory was 354.2 MB in the beginning and 353.2 MB in the end (delta: 981.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:29:35,969 INFO L168 Benchmark]: RCFGBuilder took 414.21 ms. Allocated memory is still 377.5 MB. Free memory was 353.2 MB in the beginning and 325.8 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-11 09:29:35,969 INFO L168 Benchmark]: TraceAbstraction took 33543.73 ms. Allocated memory was 377.5 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 325.8 MB in the beginning and 973.3 MB in the end (delta: -647.5 MB). Peak memory consumption was 909.7 MB. Max. memory is 16.0 GB. [2021-03-11 09:29:35,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 457.55 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 234.6 MB in the beginning and 357.3 MB in the end (delta: -122.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.18 ms. Allocated memory is still 377.5 MB. Free memory was 357.3 MB in the beginning and 354.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.14 ms. Allocated memory is still 377.5 MB. Free memory was 354.2 MB in the beginning and 353.2 MB in the end (delta: 981.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 414.21 ms. Allocated memory is still 377.5 MB. Free memory was 353.2 MB in the beginning and 325.8 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 33543.73 ms. Allocated memory was 377.5 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 325.8 MB in the beginning and 973.3 MB in the end (delta: -647.5 MB). Peak memory consumption was 909.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2767.6ms, 167 PlacesBefore, 93 PlacesAfterwards, 248 TransitionsBefore, 173 TransitionsAfterwards, 4156 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 81 TotalNumberOfCompositions, 48561 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26322, positive: 25605, positive conditional: 0, positive unconditional: 25605, negative: 717, negative conditional: 0, negative unconditional: 717, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3419, positive: 3377, positive conditional: 0, positive unconditional: 3377, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3419, positive: 3374, positive conditional: 0, positive unconditional: 3374, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 156, negative conditional: 0, negative unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26322, positive: 22228, positive conditional: 0, positive unconditional: 22228, negative: 675, negative conditional: 0, negative unconditional: 675, unknown: 3419, unknown conditional: 0, unknown unconditional: 3419] , Statistics on independence cache: Total cache size (in pairs): 1141, Positive cache size: 1127, Positive conditional cache size: 0, Positive unconditional cache size: 1127, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1163] 0 \read(t) VAL [arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={0:0}] [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=0, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=0, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1133] 5 v[0] = 'X' [L1135] 5 return 0; [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1153] 1 \read(t2) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1133] 6 v[0] = 'X' [L1135] 6 return 0; [L1133] 3 v[0] = 'X' [L1135] 3 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1140] 4 v[0] = 'Y' [L1142] 4 return 0; [L1154] 1 \read(t3) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1155] 1 \read(t4) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1156] 1 \read(t5) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, t1={14:0}, t2={11:0}, t3={10:0}, t4={13:0}, t5={6:0}, v={-1:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, v={-1:0}] [L1164] 0 v[0] [L1123] COND TRUE 0 !expression [L1123] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={-1:0}, v={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33307.9ms, OverallIterations: 62, TraceHistogramMax: 1, EmptinessCheckTime: 105.1ms, AutomataDifference: 19228.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3102.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6239 SDtfs, 13439 SDslu, 22344 SDs, 0 SdLazy, 13613 SolverSat, 2121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6622.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 879 GetRequests, 69 SyntacticMatches, 19 SemanticMatches, 791 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1121 ImplicationChecksByTransitivity, 13487.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4305occurred in iteration=23, InterpolantAutomatonStates: 564, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3625.7ms AutomataMinimizationTime, 61 MinimizatonAttempts, 59538 StatesRemovedByMinimization, 57 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 74.6ms SsaConstructionTime, 426.7ms SatisfiabilityAnalysisTime, 6350.0ms InterpolantComputationTime, 1406 NumberOfCodeBlocks, 1406 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 1304 ConstructedInterpolants, 0 QuantifiedInterpolants, 24420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 61 InterpolantComputations, 61 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...