/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-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/distributed_search2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 12:51:14,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 12:51:14,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 12:51:14,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 12:51:14,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 12:51:14,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 12:51:14,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 12:51:14,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 12:51:14,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 12:51:14,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 12:51:14,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 12:51:14,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 12:51:14,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 12:51:14,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 12:51:14,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 12:51:14,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 12:51:14,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 12:51:14,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 12:51:14,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 12:51:14,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 12:51:14,090 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-NoLbe-Separate.epf [2021-06-05 12:51:14,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 12:51:14,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 12:51:14,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 12:51:14,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 12:51:14,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 12:51:14,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 12:51:14,121 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 12:51:14,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 12:51:14,121 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 12:51:14,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 12:51:14,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 12:51:14,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 12:51:14,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 12:51:14,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 12:51:14,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 12:51:14,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 12:51:14,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 12:51:14,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 12:51:14,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 12:51:14,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 12:51:14,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 12:51:14,124 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 12:51:14,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 12:51:14,124 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 12:51:14,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 12:51:14,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 12:51:14,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 12:51:14,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 12:51:14,405 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 12:51:14,406 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 12:51:14,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/distributed_search2.c [2021-06-05 12:51:14,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf52e4f0/f5bf451a2c4a41048cdd8ca7078e1812/FLAG9de49fffe [2021-06-05 12:51:14,843 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 12:51:14,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/distributed_search2.c [2021-06-05 12:51:14,844 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 12:51:14,844 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 12:51:14,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf52e4f0/f5bf451a2c4a41048cdd8ca7078e1812/FLAG9de49fffe [2021-06-05 12:51:14,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf52e4f0/f5bf451a2c4a41048cdd8ca7078e1812 [2021-06-05 12:51:14,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 12:51:14,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 12:51:14,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 12:51:14,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 12:51:14,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 12:51:14,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:51:14" (1/1) ... [2021-06-05 12:51:14,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20429339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:14, skipping insertion in model container [2021-06-05 12:51:14,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:51:14" (1/1) ... [2021-06-05 12:51:14,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 12:51:14,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 12:51:15,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:51:15,071 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 12:51:15,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:51:15,112 INFO L208 MainTranslator]: Completed translation [2021-06-05 12:51:15,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15 WrapperNode [2021-06-05 12:51:15,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 12:51:15,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 12:51:15,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 12:51:15,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 12:51:15,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 12:51:15,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 12:51:15,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 12:51:15,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 12:51:15,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (1/1) ... [2021-06-05 12:51:15,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 12:51:15,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 12:51:15,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 12:51:15,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 12:51:15,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (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 [2021-06-05 12:51:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 12:51:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure search_worker [2021-06-05 12:51:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure search_worker [2021-06-05 12:51:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 12:51:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 12:51:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 12:51:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 12:51:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 12:51:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 12:51:15,265 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 12:51:15,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 12:51:15,549 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-05 12:51:15,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:51:15 BoogieIcfgContainer [2021-06-05 12:51:15,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 12:51:15,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 12:51:15,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 12:51:15,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 12:51:15,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:51:14" (1/3) ... [2021-06-05 12:51:15,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c0c944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:51:15, skipping insertion in model container [2021-06-05 12:51:15,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:51:15" (2/3) ... [2021-06-05 12:51:15,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c0c944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:51:15, skipping insertion in model container [2021-06-05 12:51:15,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:51:15" (3/3) ... [2021-06-05 12:51:15,556 INFO L111 eAbstractionObserver]: Analyzing ICFG distributed_search2.c [2021-06-05 12:51:15,559 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 12:51:15,559 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 12:51:15,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 12:51:15,560 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 12:51:15,614 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,614 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,614 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,615 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,616 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,617 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,618 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,619 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,620 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,621 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,621 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,621 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,621 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,621 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,621 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,624 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,625 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,625 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,625 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,625 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,625 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,625 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,625 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,626 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,627 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,628 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,629 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,630 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,631 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,632 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,633 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,634 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,635 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,636 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,636 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,636 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,636 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,636 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,637 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,638 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,639 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,639 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,639 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,639 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,647 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,648 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,648 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,648 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,648 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,648 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:51:15,656 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 12:51:15,671 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 12:51:15,683 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 12:51:15,684 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 12:51:15,684 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 12:51:15,684 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 12:51:15,684 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 12:51:15,684 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 12:51:15,684 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 12:51:15,684 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 12:51:15,692 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 144 transitions, 310 flow [2021-06-05 12:51:15,758 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2341 states, 2339 states have (on average 2.75502351432236) internal successors, (6444), 2340 states have internal predecessors, (6444), 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) [2021-06-05 12:51:15,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2339 states have (on average 2.75502351432236) internal successors, (6444), 2340 states have internal predecessors, (6444), 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) [2021-06-05 12:51:15,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 12:51:15,787 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:15,788 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:15,789 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:15,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:15,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1399251289, now seen corresponding path program 1 times [2021-06-05 12:51:15,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:15,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689940211] [2021-06-05 12:51:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:16,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:16,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:16,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689940211] [2021-06-05 12:51:16,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689940211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:51:16,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:51:16,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 12:51:16,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171043951] [2021-06-05 12:51:16,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 12:51:16,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:16,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 12:51:16,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 12:51:16,036 INFO L87 Difference]: Start difference. First operand has 2341 states, 2339 states have (on average 2.75502351432236) internal successors, (6444), 2340 states have internal predecessors, (6444), 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 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-06-05 12:51:16,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:51:16,076 INFO L93 Difference]: Finished difference Result 2341 states and 6253 transitions. [2021-06-05 12:51:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 12:51:16,077 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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 93 [2021-06-05 12:51:16,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:51:16,101 INFO L225 Difference]: With dead ends: 2341 [2021-06-05 12:51:16,101 INFO L226 Difference]: Without dead ends: 2329 [2021-06-05 12:51:16,103 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 12:51:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2021-06-05 12:51:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2021-06-05 12:51:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2328 states have (on average 2.6804123711340204) internal successors, (6240), 2328 states have internal predecessors, (6240), 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) [2021-06-05 12:51:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 6240 transitions. [2021-06-05 12:51:16,232 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 6240 transitions. Word has length 93 [2021-06-05 12:51:16,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:51:16,233 INFO L482 AbstractCegarLoop]: Abstraction has 2329 states and 6240 transitions. [2021-06-05 12:51:16,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-06-05 12:51:16,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 6240 transitions. [2021-06-05 12:51:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 12:51:16,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:16,240 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:16,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 12:51:16,241 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:16,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1466258042, now seen corresponding path program 1 times [2021-06-05 12:51:16,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:16,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391119218] [2021-06-05 12:51:16,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:16,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:16,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391119218] [2021-06-05 12:51:16,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391119218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:51:16,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:51:16,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 12:51:16,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439887011] [2021-06-05 12:51:16,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 12:51:16,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:16,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 12:51:16,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 12:51:16,395 INFO L87 Difference]: Start difference. First operand 2329 states and 6240 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-06-05 12:51:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:51:16,462 INFO L93 Difference]: Finished difference Result 4024 states and 10873 transitions. [2021-06-05 12:51:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 12:51:16,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2021-06-05 12:51:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:51:16,477 INFO L225 Difference]: With dead ends: 4024 [2021-06-05 12:51:16,478 INFO L226 Difference]: Without dead ends: 4024 [2021-06-05 12:51:16,478 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 12:51:16,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2021-06-05 12:51:16,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3655. [2021-06-05 12:51:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 3654 states have (on average 2.7090859332238644) internal successors, (9899), 3654 states have internal predecessors, (9899), 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) [2021-06-05 12:51:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9899 transitions. [2021-06-05 12:51:16,574 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9899 transitions. Word has length 93 [2021-06-05 12:51:16,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:51:16,575 INFO L482 AbstractCegarLoop]: Abstraction has 3655 states and 9899 transitions. [2021-06-05 12:51:16,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-06-05 12:51:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9899 transitions. [2021-06-05 12:51:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 12:51:16,582 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:16,582 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:16,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 12:51:16,582 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:16,583 INFO L82 PathProgramCache]: Analyzing trace with hash -495984055, now seen corresponding path program 1 times [2021-06-05 12:51:16,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:16,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707077878] [2021-06-05 12:51:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:16,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:16,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707077878] [2021-06-05 12:51:16,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707077878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:51:16,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:51:16,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 12:51:16,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102757000] [2021-06-05 12:51:16,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 12:51:16,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:16,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 12:51:16,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 12:51:16,674 INFO L87 Difference]: Start difference. First operand 3655 states and 9899 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2021-06-05 12:51:16,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:51:16,802 INFO L93 Difference]: Finished difference Result 3660 states and 9903 transitions. [2021-06-05 12:51:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 12:51:16,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 93 [2021-06-05 12:51:16,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:51:16,816 INFO L225 Difference]: With dead ends: 3660 [2021-06-05 12:51:16,816 INFO L226 Difference]: Without dead ends: 3590 [2021-06-05 12:51:16,816 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 69.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 12:51:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2021-06-05 12:51:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3590. [2021-06-05 12:51:16,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3589 states have (on average 2.716634159933129) internal successors, (9750), 3589 states have internal predecessors, (9750), 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) [2021-06-05 12:51:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 9750 transitions. [2021-06-05 12:51:16,887 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 9750 transitions. Word has length 93 [2021-06-05 12:51:16,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:51:16,887 INFO L482 AbstractCegarLoop]: Abstraction has 3590 states and 9750 transitions. [2021-06-05 12:51:16,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2021-06-05 12:51:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 9750 transitions. [2021-06-05 12:51:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:51:16,894 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:16,894 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:16,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 12:51:16,894 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:16,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1059765237, now seen corresponding path program 1 times [2021-06-05 12:51:16,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:16,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376815636] [2021-06-05 12:51:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 12:51:17,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:17,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376815636] [2021-06-05 12:51:17,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376815636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:51:17,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:51:17,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 12:51:17,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701056811] [2021-06-05 12:51:17,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 12:51:17,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:17,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 12:51:17,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-05 12:51:17,203 INFO L87 Difference]: Start difference. First operand 3590 states and 9750 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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) [2021-06-05 12:51:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:51:17,429 INFO L93 Difference]: Finished difference Result 3590 states and 9749 transitions. [2021-06-05 12:51:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 12:51:17,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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 102 [2021-06-05 12:51:17,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:51:17,442 INFO L225 Difference]: With dead ends: 3590 [2021-06-05 12:51:17,442 INFO L226 Difference]: Without dead ends: 3476 [2021-06-05 12:51:17,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 182.3ms TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-06-05 12:51:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2021-06-05 12:51:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3476. [2021-06-05 12:51:17,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3476 states, 3475 states have (on average 2.7381294964028777) internal successors, (9515), 3475 states have internal predecessors, (9515), 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) [2021-06-05 12:51:17,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 9515 transitions. [2021-06-05 12:51:17,515 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 9515 transitions. Word has length 102 [2021-06-05 12:51:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:51:17,515 INFO L482 AbstractCegarLoop]: Abstraction has 3476 states and 9515 transitions. [2021-06-05 12:51:17,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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) [2021-06-05 12:51:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 9515 transitions. [2021-06-05 12:51:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:51:17,522 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:17,523 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:17,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 12:51:17,523 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:17,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1570861583, now seen corresponding path program 1 times [2021-06-05 12:51:17,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:17,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526278579] [2021-06-05 12:51:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:18,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:18,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526278579] [2021-06-05 12:51:18,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526278579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:51:18,761 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:51:18,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:51:18,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499975961] [2021-06-05 12:51:18,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:51:18,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:18,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:51:18,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:51:18,763 INFO L87 Difference]: Start difference. First operand 3476 states and 9515 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:51:20,111 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 12:51:20,327 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 12:51:20,589 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:51:20,825 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 12:51:21,151 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:51:21,439 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:51:21,708 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 12:51:22,084 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:51:22,267 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-06-05 12:51:22,502 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 12:51:22,951 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2021-06-05 12:51:23,305 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 110 [2021-06-05 12:51:23,627 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2021-06-05 12:51:24,012 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 12:51:24,200 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2021-06-05 12:51:24,531 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2021-06-05 12:51:24,729 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-06-05 12:51:25,085 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 115 [2021-06-05 12:51:25,325 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 12:51:25,485 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 12:51:25,796 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 118 [2021-06-05 12:51:26,033 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 93 [2021-06-05 12:51:26,492 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 115 [2021-06-05 12:51:26,700 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2021-06-05 12:51:26,941 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 95 [2021-06-05 12:51:27,105 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 12:51:27,416 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 12:51:27,661 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 108 [2021-06-05 12:51:27,895 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 93 [2021-06-05 12:51:28,058 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 12:51:28,321 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 101 [2021-06-05 12:51:28,579 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 110 [2021-06-05 12:51:28,834 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:51:29,058 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2021-06-05 12:51:29,258 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 12:51:29,552 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 12:51:29,827 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 12:51:30,052 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 12:51:30,344 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 12:51:30,624 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 110 [2021-06-05 12:51:30,818 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 12:51:31,129 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 12:51:31,420 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 12:51:31,708 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:51:31,887 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 12:51:32,182 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 12:51:32,466 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 12:51:32,844 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 12:51:33,113 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 12:51:33,557 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2021-06-05 12:51:33,852 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 12:51:34,237 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 121 [2021-06-05 12:51:34,545 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 12:51:34,722 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 12:51:35,059 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 118 [2021-06-05 12:51:35,578 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 121 [2021-06-05 12:51:35,764 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 12:51:36,216 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 118 [2021-06-05 12:51:36,480 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 115 [2021-06-05 12:51:36,677 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2021-06-05 12:51:36,899 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 100 [2021-06-05 12:51:37,093 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 12:51:37,327 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 12:51:37,761 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 118 [2021-06-05 12:51:38,014 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 98 [2021-06-05 12:51:38,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:51:38,038 INFO L93 Difference]: Finished difference Result 14303 states and 39407 transitions. [2021-06-05 12:51:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-05 12:51:38,039 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:51:38,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:51:38,120 INFO L225 Difference]: With dead ends: 14303 [2021-06-05 12:51:38,120 INFO L226 Difference]: Without dead ends: 14195 [2021-06-05 12:51:38,127 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2224 ImplicationChecksByTransitivity, 16800.0ms TimeCoverageRelationStatistics Valid=2926, Invalid=8416, Unknown=0, NotChecked=0, Total=11342 [2021-06-05 12:51:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14195 states. [2021-06-05 12:51:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14195 to 3990. [2021-06-05 12:51:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 3989 states have (on average 2.747555778390574) internal successors, (10960), 3989 states have internal predecessors, (10960), 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) [2021-06-05 12:51:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 10960 transitions. [2021-06-05 12:51:38,448 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 10960 transitions. Word has length 102 [2021-06-05 12:51:38,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:51:38,449 INFO L482 AbstractCegarLoop]: Abstraction has 3990 states and 10960 transitions. [2021-06-05 12:51:38,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:51:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 10960 transitions. [2021-06-05 12:51:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:51:38,470 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:38,470 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:38,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 12:51:38,470 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:38,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:38,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1415667755, now seen corresponding path program 1 times [2021-06-05 12:51:38,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:38,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938372432] [2021-06-05 12:51:38,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:38,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:38,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:38,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938372432] [2021-06-05 12:51:38,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938372432] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 12:51:38,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848327879] [2021-06-05 12:51:38,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 12:51:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:38,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-05 12:51:38,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 12:51:39,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-06-05 12:51:39,256 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:51:39,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:51:39,257 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:51:39,258 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2021-06-05 12:51:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:39,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848327879] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 12:51:39,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 12:51:39,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 27 [2021-06-05 12:51:39,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771979689] [2021-06-05 12:51:39,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 12:51:39,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:39,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 12:51:39,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2021-06-05 12:51:39,264 INFO L87 Difference]: Start difference. First operand 3990 states and 10960 transitions. Second operand has 28 states, 27 states have (on average 7.037037037037037) internal successors, (190), 28 states have internal predecessors, (190), 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) [2021-06-05 12:51:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:51:40,323 INFO L93 Difference]: Finished difference Result 5233 states and 14428 transitions. [2021-06-05 12:51:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 12:51:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 7.037037037037037) internal successors, (190), 28 states have internal predecessors, (190), 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 102 [2021-06-05 12:51:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:51:40,330 INFO L225 Difference]: With dead ends: 5233 [2021-06-05 12:51:40,331 INFO L226 Difference]: Without dead ends: 4100 [2021-06-05 12:51:40,331 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 960.0ms TimeCoverageRelationStatistics Valid=491, Invalid=1671, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 12:51:40,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2021-06-05 12:51:40,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 2850. [2021-06-05 12:51:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2849 states have (on average 2.7314847314847315) internal successors, (7782), 2849 states have internal predecessors, (7782), 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) [2021-06-05 12:51:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 7782 transitions. [2021-06-05 12:51:40,393 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 7782 transitions. Word has length 102 [2021-06-05 12:51:40,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:51:40,393 INFO L482 AbstractCegarLoop]: Abstraction has 2850 states and 7782 transitions. [2021-06-05 12:51:40,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 27 states have (on average 7.037037037037037) internal successors, (190), 28 states have internal predecessors, (190), 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) [2021-06-05 12:51:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 7782 transitions. [2021-06-05 12:51:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:51:40,397 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:40,398 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:40,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-05 12:51:40,619 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:40,619 INFO L82 PathProgramCache]: Analyzing trace with hash 810183691, now seen corresponding path program 2 times [2021-06-05 12:51:40,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:40,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380180155] [2021-06-05 12:51:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:41,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:41,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380180155] [2021-06-05 12:51:41,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380180155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:51:41,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:51:41,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:51:41,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818179869] [2021-06-05 12:51:41,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:51:41,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:41,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:51:41,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:51:41,601 INFO L87 Difference]: Start difference. First operand 2850 states and 7782 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:51:42,685 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-06-05 12:51:42,857 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 12:51:43,067 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 12:51:43,300 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:51:43,527 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 12:51:43,746 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:51:44,006 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:51:44,248 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 12:51:44,462 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:51:44,714 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 12:51:45,017 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 12:51:45,296 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:51:45,603 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 12:51:45,906 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 12:51:46,219 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 12:51:46,546 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 12:51:46,857 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 12:51:47,155 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 12:51:47,474 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 12:51:47,727 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 106 [2021-06-05 12:51:47,986 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 108 [2021-06-05 12:51:48,235 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 106 [2021-06-05 12:51:48,522 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 12:51:48,804 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 12:51:49,068 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 12:51:49,329 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 12:51:49,632 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 12:51:50,047 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 12:51:50,346 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 98 [2021-06-05 12:51:50,520 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2021-06-05 12:51:50,818 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-06-05 12:51:50,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:51:50,831 INFO L93 Difference]: Finished difference Result 8692 states and 24140 transitions. [2021-06-05 12:51:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 12:51:50,831 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:51:50,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:51:50,844 INFO L225 Difference]: With dead ends: 8692 [2021-06-05 12:51:50,844 INFO L226 Difference]: Without dead ends: 7900 [2021-06-05 12:51:50,845 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 8027.0ms TimeCoverageRelationStatistics Valid=1220, Invalid=3202, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 12:51:50,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2021-06-05 12:51:50,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 2906. [2021-06-05 12:51:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2905 states have (on average 2.734595524956971) internal successors, (7944), 2905 states have internal predecessors, (7944), 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) [2021-06-05 12:51:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 7944 transitions. [2021-06-05 12:51:50,915 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 7944 transitions. Word has length 102 [2021-06-05 12:51:50,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:51:50,915 INFO L482 AbstractCegarLoop]: Abstraction has 2906 states and 7944 transitions. [2021-06-05 12:51:50,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:51:50,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 7944 transitions. [2021-06-05 12:51:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:51:50,920 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:51:50,920 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:51:50,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 12:51:50,920 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:51:50,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:51:50,920 INFO L82 PathProgramCache]: Analyzing trace with hash 292790509, now seen corresponding path program 3 times [2021-06-05 12:51:50,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:51:50,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403169024] [2021-06-05 12:51:50,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:51:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:51:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:51:51,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:51:51,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403169024] [2021-06-05 12:51:51,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403169024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:51:51,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:51:51,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:51:51,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222873562] [2021-06-05 12:51:51,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:51:51,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:51:51,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:51:51,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:51:51,829 INFO L87 Difference]: Start difference. First operand 2906 states and 7944 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:51:53,031 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 12:51:53,228 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 12:51:53,452 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:51:53,672 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 12:51:53,884 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:51:54,144 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:51:54,387 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 12:51:54,602 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:51:54,841 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 12:51:55,116 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 12:51:55,396 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:51:55,674 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 12:51:55,985 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 12:51:56,208 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:51:56,502 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 12:51:56,819 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 12:51:57,138 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 12:51:57,449 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-06-05 12:51:57,732 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 12:51:58,044 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 12:51:58,336 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 12:51:58,610 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 12:51:58,938 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-06-05 12:51:59,255 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 120 [2021-06-05 12:51:59,536 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 12:51:59,803 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 12:52:00,042 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 12:52:00,326 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 12:52:00,799 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 117 [2021-06-05 12:52:01,038 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 114 [2021-06-05 12:52:01,211 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2021-06-05 12:52:01,591 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-06-05 12:52:01,812 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 109 [2021-06-05 12:52:02,042 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 112 [2021-06-05 12:52:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:52:02,085 INFO L93 Difference]: Finished difference Result 11280 states and 31453 transitions. [2021-06-05 12:52:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 12:52:02,086 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:52:02,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:52:02,101 INFO L225 Difference]: With dead ends: 11280 [2021-06-05 12:52:02,101 INFO L226 Difference]: Without dead ends: 10696 [2021-06-05 12:52:02,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 9121.8ms TimeCoverageRelationStatistics Valid=1425, Invalid=3831, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 12:52:02,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10696 states. [2021-06-05 12:52:02,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10696 to 3006. [2021-06-05 12:52:02,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 3005 states have (on average 2.73910149750416) internal successors, (8231), 3005 states have internal predecessors, (8231), 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) [2021-06-05 12:52:02,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 8231 transitions. [2021-06-05 12:52:02,181 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 8231 transitions. Word has length 102 [2021-06-05 12:52:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:52:02,181 INFO L482 AbstractCegarLoop]: Abstraction has 3006 states and 8231 transitions. [2021-06-05 12:52:02,182 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 8231 transitions. [2021-06-05 12:52:02,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:52:02,186 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:52:02,186 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:52:02,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 12:52:02,187 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:52:02,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:52:02,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1544834349, now seen corresponding path program 4 times [2021-06-05 12:52:02,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:52:02,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886097840] [2021-06-05 12:52:02,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:52:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:52:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:52:03,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:52:03,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886097840] [2021-06-05 12:52:03,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886097840] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:52:03,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:52:03,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:52:03,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518287417] [2021-06-05 12:52:03,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:52:03,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:52:03,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:52:03,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:52:03,050 INFO L87 Difference]: Start difference. First operand 3006 states and 8231 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:04,228 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 12:52:04,432 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 12:52:04,681 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:52:04,930 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 12:52:05,095 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-06-05 12:52:05,269 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:52:05,546 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:52:05,810 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 12:52:05,964 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 12:52:06,281 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:52:06,466 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-06-05 12:52:06,692 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 12:52:06,881 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2021-06-05 12:52:07,185 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 12:52:07,363 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-06-05 12:52:07,635 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:52:07,832 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-06-05 12:52:08,080 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 12:52:08,276 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-06-05 12:52:08,553 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:52:08,734 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2021-06-05 12:52:09,157 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 12:52:09,350 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 89 [2021-06-05 12:52:09,695 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 119 [2021-06-05 12:52:09,952 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 113 [2021-06-05 12:52:10,226 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 110 [2021-06-05 12:52:10,455 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 101 [2021-06-05 12:52:10,790 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 121 [2021-06-05 12:52:11,079 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2021-06-05 12:52:11,316 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:52:11,493 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2021-06-05 12:52:11,820 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 120 [2021-06-05 12:52:12,081 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 112 [2021-06-05 12:52:12,333 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 12:52:12,573 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 105 [2021-06-05 12:52:12,772 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 12:52:13,170 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 118 [2021-06-05 12:52:13,422 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2021-06-05 12:52:13,713 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 12:52:13,964 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:52:14,189 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2021-06-05 12:52:14,502 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 12:52:14,757 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 12:52:15,002 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2021-06-05 12:52:15,230 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 12:52:15,677 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 12:52:15,963 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 111 [2021-06-05 12:52:16,200 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 12:52:16,498 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 12:52:16,770 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 12:52:17,032 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 12:52:17,347 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2021-06-05 12:52:17,644 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 12:52:17,972 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 12:52:18,220 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 12:52:18,650 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 115 [2021-06-05 12:52:18,870 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 107 [2021-06-05 12:52:19,002 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-05 12:52:19,401 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-06-05 12:52:19,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:52:19,413 INFO L93 Difference]: Finished difference Result 12712 states and 35518 transitions. [2021-06-05 12:52:19,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-06-05 12:52:19,413 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:52:19,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:52:19,431 INFO L225 Difference]: With dead ends: 12712 [2021-06-05 12:52:19,431 INFO L226 Difference]: Without dead ends: 11828 [2021-06-05 12:52:19,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 14517.5ms TimeCoverageRelationStatistics Valid=2559, Invalid=7541, Unknown=0, NotChecked=0, Total=10100 [2021-06-05 12:52:19,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11828 states. [2021-06-05 12:52:19,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11828 to 2950. [2021-06-05 12:52:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2949 states have (on average 2.728043404543913) internal successors, (8045), 2949 states have internal predecessors, (8045), 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) [2021-06-05 12:52:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 8045 transitions. [2021-06-05 12:52:19,517 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 8045 transitions. Word has length 102 [2021-06-05 12:52:19,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:52:19,517 INFO L482 AbstractCegarLoop]: Abstraction has 2950 states and 8045 transitions. [2021-06-05 12:52:19,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:19,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 8045 transitions. [2021-06-05 12:52:19,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:52:19,522 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:52:19,522 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:52:19,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 12:52:19,523 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:52:19,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:52:19,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1455136279, now seen corresponding path program 5 times [2021-06-05 12:52:19,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:52:19,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732865672] [2021-06-05 12:52:19,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:52:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:52:20,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:52:20,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:52:20,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732865672] [2021-06-05 12:52:20,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732865672] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:52:20,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:52:20,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:52:20,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476919345] [2021-06-05 12:52:20,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:52:20,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:52:20,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:52:20,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:52:20,396 INFO L87 Difference]: Start difference. First operand 2950 states and 8045 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:21,559 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 12:52:21,759 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 12:52:21,986 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:52:22,208 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 12:52:22,540 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 12:52:22,810 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:52:23,073 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 12:52:23,508 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 12:52:23,674 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-06-05 12:52:23,905 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 12:52:24,086 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-06-05 12:52:24,375 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 12:52:24,790 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:52:25,197 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 12:52:25,377 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2021-06-05 12:52:25,631 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 12:52:25,802 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2021-06-05 12:52:26,192 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 12:52:26,378 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 12:52:26,709 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 116 [2021-06-05 12:52:26,956 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 107 [2021-06-05 12:52:27,201 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 12:52:27,433 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2021-06-05 12:52:27,769 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 118 [2021-06-05 12:52:28,056 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 115 [2021-06-05 12:52:28,287 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 12:52:28,529 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 12:52:28,704 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 79 [2021-06-05 12:52:29,012 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 12:52:29,298 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 113 [2021-06-05 12:52:29,529 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 12:52:29,760 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 12:52:29,948 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 12:52:30,342 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 12:52:30,578 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 12:52:30,870 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2021-06-05 12:52:31,097 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 12:52:31,305 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2021-06-05 12:52:31,638 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 12:52:31,920 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 116 [2021-06-05 12:52:32,158 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 12:52:32,374 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 12:52:32,671 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 12:52:32,949 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2021-06-05 12:52:33,173 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 99 [2021-06-05 12:52:33,478 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 12:52:33,753 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 12:52:34,104 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 119 [2021-06-05 12:52:34,361 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-06-05 12:52:34,627 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 12:52:34,885 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 12:52:35,423 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 12:52:35,690 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 12:52:35,899 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 104 [2021-06-05 12:52:36,385 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 102 [2021-06-05 12:52:36,598 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 105 [2021-06-05 12:52:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:52:36,607 INFO L93 Difference]: Finished difference Result 13915 states and 39068 transitions. [2021-06-05 12:52:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-05 12:52:36,608 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:52:36,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:52:36,649 INFO L225 Difference]: With dead ends: 13915 [2021-06-05 12:52:36,649 INFO L226 Difference]: Without dead ends: 13879 [2021-06-05 12:52:36,651 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2047 ImplicationChecksByTransitivity, 14383.7ms TimeCoverageRelationStatistics Valid=2632, Invalid=7670, Unknown=0, NotChecked=0, Total=10302 [2021-06-05 12:52:36,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13879 states. [2021-06-05 12:52:36,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13879 to 2958. [2021-06-05 12:52:36,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2957 states have (on average 2.728102806898884) internal successors, (8067), 2957 states have internal predecessors, (8067), 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) [2021-06-05 12:52:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 8067 transitions. [2021-06-05 12:52:36,760 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 8067 transitions. Word has length 102 [2021-06-05 12:52:36,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:52:36,760 INFO L482 AbstractCegarLoop]: Abstraction has 2958 states and 8067 transitions. [2021-06-05 12:52:36,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 8067 transitions. [2021-06-05 12:52:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:52:36,765 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:52:36,765 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:52:36,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 12:52:36,765 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:52:36,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:52:36,767 INFO L82 PathProgramCache]: Analyzing trace with hash 2098997895, now seen corresponding path program 6 times [2021-06-05 12:52:36,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:52:36,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581012314] [2021-06-05 12:52:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:52:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:52:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:52:38,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:52:38,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581012314] [2021-06-05 12:52:38,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581012314] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:52:38,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:52:38,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:52:38,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607994335] [2021-06-05 12:52:38,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:52:38,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:52:38,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:52:38,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:52:38,026 INFO L87 Difference]: Start difference. First operand 2958 states and 8067 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:39,300 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-06-05 12:52:39,513 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 12:52:39,742 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 12:52:39,947 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 12:52:40,180 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 12:52:40,421 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 12:52:40,623 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 12:52:40,852 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2021-06-05 12:52:41,113 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2021-06-05 12:52:41,395 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 12:52:41,736 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 12:52:41,986 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 12:52:42,241 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 12:52:42,515 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 12:52:42,790 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 12:52:43,054 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 12:52:43,327 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 113 [2021-06-05 12:52:43,741 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 116 [2021-06-05 12:52:44,005 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2021-06-05 12:52:44,259 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 106 [2021-06-05 12:52:44,524 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 102 [2021-06-05 12:52:44,849 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2021-06-05 12:52:44,990 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-06-05 12:52:45,211 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-06-05 12:52:45,361 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-06-05 12:52:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:52:45,377 INFO L93 Difference]: Finished difference Result 10774 states and 30232 transitions. [2021-06-05 12:52:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 12:52:45,378 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:52:45,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:52:45,392 INFO L225 Difference]: With dead ends: 10774 [2021-06-05 12:52:45,393 INFO L226 Difference]: Without dead ends: 10762 [2021-06-05 12:52:45,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 6638.4ms TimeCoverageRelationStatistics Valid=1017, Invalid=2889, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 12:52:45,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2021-06-05 12:52:45,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 2962. [2021-06-05 12:52:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2962 states, 2961 states have (on average 2.728132387706856) internal successors, (8078), 2961 states have internal predecessors, (8078), 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) [2021-06-05 12:52:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 8078 transitions. [2021-06-05 12:52:45,477 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 8078 transitions. Word has length 102 [2021-06-05 12:52:45,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:52:45,478 INFO L482 AbstractCegarLoop]: Abstraction has 2962 states and 8078 transitions. [2021-06-05 12:52:45,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 8078 transitions. [2021-06-05 12:52:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:52:45,482 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:52:45,482 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:52:45,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 12:52:45,482 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:52:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:52:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash -960756363, now seen corresponding path program 7 times [2021-06-05 12:52:45,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:52:45,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697268998] [2021-06-05 12:52:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:52:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:52:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:52:46,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:52:46,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697268998] [2021-06-05 12:52:46,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697268998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:52:46,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:52:46,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:52:46,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029163090] [2021-06-05 12:52:46,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:52:46,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:52:46,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:52:46,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:52:46,682 INFO L87 Difference]: Start difference. First operand 2962 states and 8078 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:47,968 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-06-05 12:52:48,183 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 12:52:48,396 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 12:52:48,603 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 12:52:48,846 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 12:52:49,083 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 12:52:49,291 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 12:52:49,526 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2021-06-05 12:52:49,803 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2021-06-05 12:52:50,069 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 12:52:50,354 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 12:52:50,618 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 12:52:50,877 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 12:52:51,158 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 12:52:51,424 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 12:52:51,705 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 12:52:51,981 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 112 [2021-06-05 12:52:52,423 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2021-06-05 12:52:52,564 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-06-05 12:52:52,786 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-06-05 12:52:52,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:52:52,797 INFO L93 Difference]: Finished difference Result 8524 states and 23750 transitions. [2021-06-05 12:52:52,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 12:52:52,798 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:52:52,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:52:52,807 INFO L225 Difference]: With dead ends: 8524 [2021-06-05 12:52:52,808 INFO L226 Difference]: Without dead ends: 8524 [2021-06-05 12:52:52,808 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 5585.0ms TimeCoverageRelationStatistics Valid=835, Invalid=2471, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 12:52:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8524 states. [2021-06-05 12:52:52,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8524 to 2990. [2021-06-05 12:52:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2989 states have (on average 2.7296754767480764) internal successors, (8159), 2989 states have internal predecessors, (8159), 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) [2021-06-05 12:52:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 8159 transitions. [2021-06-05 12:52:52,881 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 8159 transitions. Word has length 102 [2021-06-05 12:52:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:52:52,881 INFO L482 AbstractCegarLoop]: Abstraction has 2990 states and 8159 transitions. [2021-06-05 12:52:52,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:52:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 8159 transitions. [2021-06-05 12:52:52,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:52:52,885 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:52:52,885 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:52:52,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 12:52:52,886 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:52:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:52:52,886 INFO L82 PathProgramCache]: Analyzing trace with hash -2143057221, now seen corresponding path program 8 times [2021-06-05 12:52:52,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:52:52,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993365846] [2021-06-05 12:52:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:52:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:52:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:52:53,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:52:53,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993365846] [2021-06-05 12:52:53,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993365846] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 12:52:53,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232944988] [2021-06-05 12:52:53,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 12:52:53,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 12:52:53,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 12:52:53,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 70 conjunts are in the unsatisfiable core [2021-06-05 12:52:53,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 12:52:53,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-06-05 12:52:53,797 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:52:53,804 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:52:53,804 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:52:53,805 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2021-06-05 12:52:53,826 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-06-05 12:52:53,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-06-05 12:52:53,829 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:52:53,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:52:53,839 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:52:53,839 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2021-06-05 12:52:53,969 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-06-05 12:52:53,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-06-05 12:52:53,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:52:53,982 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:52:53,983 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:52:53,983 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:31 [2021-06-05 12:52:54,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-06-05 12:52:54,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:52:54,116 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:52:54,120 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:52:54,120 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:49, output treesize:30 [2021-06-05 12:52:54,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-06-05 12:52:54,296 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:52:54,306 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:52:54,307 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:52:54,308 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:26 [2021-06-05 12:52:55,255 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-06-05 12:52:55,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 26 [2021-06-05 12:52:55,257 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:52:55,262 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:52:55,264 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:52:55,264 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:7 [2021-06-05 12:52:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:52:55,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232944988] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 12:52:55,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 12:52:55,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 27] total 45 [2021-06-05 12:52:55,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135662644] [2021-06-05 12:52:55,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-05 12:52:55,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:52:55,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-05 12:52:55,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1920, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 12:52:55,281 INFO L87 Difference]: Start difference. First operand 2990 states and 8159 transitions. Second operand has 46 states, 45 states have (on average 3.977777777777778) internal successors, (179), 46 states have internal predecessors, (179), 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) [2021-06-05 12:52:56,194 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-06-05 12:52:56,362 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-06-05 12:52:56,563 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2021-06-05 12:52:56,747 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-06-05 12:52:57,048 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-06-05 12:52:57,377 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 73 [2021-06-05 12:52:57,536 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2021-06-05 12:52:57,769 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-06-05 12:52:58,124 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2021-06-05 12:52:58,429 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 12:52:58,690 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2021-06-05 12:52:58,872 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2021-06-05 12:52:59,075 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2021-06-05 12:52:59,292 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2021-06-05 12:52:59,513 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2021-06-05 12:52:59,843 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2021-06-05 12:53:00,119 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2021-06-05 12:53:00,600 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2021-06-05 12:53:00,775 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2021-06-05 12:53:00,939 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2021-06-05 12:53:01,204 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 12:53:01,466 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2021-06-05 12:53:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:53:03,461 INFO L93 Difference]: Finished difference Result 12976 states and 36210 transitions. [2021-06-05 12:53:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-06-05 12:53:03,461 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.977777777777778) internal successors, (179), 46 states have internal predecessors, (179), 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 102 [2021-06-05 12:53:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:53:03,477 INFO L225 Difference]: With dead ends: 12976 [2021-06-05 12:53:03,477 INFO L226 Difference]: Without dead ends: 12360 [2021-06-05 12:53:03,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2221 ImplicationChecksByTransitivity, 7836.9ms TimeCoverageRelationStatistics Valid=1962, Invalid=8750, Unknown=0, NotChecked=0, Total=10712 [2021-06-05 12:53:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12360 states. [2021-06-05 12:53:03,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12360 to 4163. [2021-06-05 12:53:03,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4163 states, 4162 states have (on average 2.7602114368092265) internal successors, (11488), 4162 states have internal predecessors, (11488), 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) [2021-06-05 12:53:03,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4163 states to 4163 states and 11488 transitions. [2021-06-05 12:53:03,598 INFO L78 Accepts]: Start accepts. Automaton has 4163 states and 11488 transitions. Word has length 102 [2021-06-05 12:53:03,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:53:03,599 INFO L482 AbstractCegarLoop]: Abstraction has 4163 states and 11488 transitions. [2021-06-05 12:53:03,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 45 states have (on average 3.977777777777778) internal successors, (179), 46 states have internal predecessors, (179), 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) [2021-06-05 12:53:03,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4163 states and 11488 transitions. [2021-06-05 12:53:03,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:53:03,605 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:53:03,605 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:53:03,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-05 12:53:03,821 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:53:03,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:53:03,821 INFO L82 PathProgramCache]: Analyzing trace with hash 180698587, now seen corresponding path program 9 times [2021-06-05 12:53:03,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:53:03,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688710762] [2021-06-05 12:53:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:53:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:53:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:53:05,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:53:05,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688710762] [2021-06-05 12:53:05,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688710762] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:53:05,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:53:05,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 12:53:05,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481599063] [2021-06-05 12:53:05,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 12:53:05,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:53:05,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 12:53:05,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 12:53:05,029 INFO L87 Difference]: Start difference. First operand 4163 states and 11488 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:53:05,978 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2021-06-05 12:53:06,311 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 12:53:06,696 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 12:53:06,930 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-06-05 12:53:07,149 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 12:53:07,481 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-06-05 12:53:07,873 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2021-06-05 12:53:08,465 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-06-05 12:53:08,727 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2021-06-05 12:53:08,893 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2021-06-05 12:53:09,180 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 97 [2021-06-05 12:53:09,374 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2021-06-05 12:53:09,695 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-06-05 12:53:09,912 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2021-06-05 12:53:10,240 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 111 [2021-06-05 12:53:10,472 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2021-06-05 12:53:10,775 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 113 [2021-06-05 12:53:11,028 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 104 [2021-06-05 12:53:11,319 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 111 [2021-06-05 12:53:11,582 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2021-06-05 12:53:11,916 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2021-06-05 12:53:12,171 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 105 [2021-06-05 12:53:12,479 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 117 [2021-06-05 12:53:12,743 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 108 [2021-06-05 12:53:13,026 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2021-06-05 12:53:13,292 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 105 [2021-06-05 12:53:13,596 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 116 [2021-06-05 12:53:13,845 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 107 [2021-06-05 12:53:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:53:14,390 INFO L93 Difference]: Finished difference Result 17029 states and 48238 transitions. [2021-06-05 12:53:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-05 12:53:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 102 [2021-06-05 12:53:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:53:14,412 INFO L225 Difference]: With dead ends: 17029 [2021-06-05 12:53:14,412 INFO L226 Difference]: Without dead ends: 17029 [2021-06-05 12:53:14,413 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 8306.6ms TimeCoverageRelationStatistics Valid=1403, Invalid=3853, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 12:53:14,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17029 states. [2021-06-05 12:53:14,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17029 to 4598. [2021-06-05 12:53:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4598 states, 4597 states have (on average 2.7665869045029368) internal successors, (12718), 4597 states have internal predecessors, (12718), 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) [2021-06-05 12:53:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4598 states to 4598 states and 12718 transitions. [2021-06-05 12:53:14,576 INFO L78 Accepts]: Start accepts. Automaton has 4598 states and 12718 transitions. Word has length 102 [2021-06-05 12:53:14,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:53:14,577 INFO L482 AbstractCegarLoop]: Abstraction has 4598 states and 12718 transitions. [2021-06-05 12:53:14,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 12:53:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 4598 states and 12718 transitions. [2021-06-05 12:53:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 12:53:14,583 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:53:14,583 INFO L521 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:53:14,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 12:53:14,584 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:53:14,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:53:14,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1921056285, now seen corresponding path program 10 times [2021-06-05 12:53:14,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:53:14,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68748611] [2021-06-05 12:53:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:53:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:53:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:53:15,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:53:15,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68748611] [2021-06-05 12:53:15,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68748611] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 12:53:15,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308982033] [2021-06-05 12:53:15,378 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 12:53:15,441 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 12:53:15,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 12:53:15,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-05 12:53:15,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 12:53:15,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-06-05 12:53:15,466 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:53:15,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:53:15,467 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:53:15,467 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-06-05 12:53:15,586 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-06-05 12:53:15,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-06-05 12:53:15,588 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:53:15,594 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:53:15,596 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-05 12:53:15,596 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:24 [2021-06-05 12:53:15,657 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-06-05 12:53:15,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-06-05 12:53:15,659 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:53:15,667 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:53:15,668 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:53:15,668 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:14 [2021-06-05 12:53:15,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-06-05 12:53:15,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:53:15,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:53:15,873 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:53:15,873 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2021-06-05 12:53:16,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-06-05 12:53:16,085 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 12:53:16,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 12:53:16,087 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 12:53:16,087 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2021-06-05 12:53:16,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:53:16,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308982033] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 12:53:16,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 12:53:16,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 18] total 41 [2021-06-05 12:53:16,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006842707] [2021-06-05 12:53:16,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-05 12:53:16,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:53:16,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-05 12:53:16,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1601, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 12:53:16,093 INFO L87 Difference]: Start difference. First operand 4598 states and 12718 transitions. Second operand has 42 states, 41 states have (on average 4.634146341463414) internal successors, (190), 42 states have internal predecessors, (190), 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) [2021-06-05 12:53:17,332 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-06-05 12:53:17,952 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-06-05 12:53:18,216 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2021-06-05 12:53:18,464 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-06-05 12:53:18,681 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-06-05 12:53:18,974 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 12:53:19,844 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2021-06-05 12:53:20,363 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2021-06-05 12:53:20,527 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-06-05 12:53:20,669 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2021-06-05 12:53:22,261 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-06-05 12:53:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:53:24,601 INFO L93 Difference]: Finished difference Result 12651 states and 35450 transitions. [2021-06-05 12:53:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-06-05 12:53:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.634146341463414) internal successors, (190), 42 states have internal predecessors, (190), 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 102 [2021-06-05 12:53:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:53:24,602 INFO L225 Difference]: With dead ends: 12651 [2021-06-05 12:53:24,602 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 12:53:24,603 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3118 ImplicationChecksByTransitivity, 7678.3ms TimeCoverageRelationStatistics Valid=2483, Invalid=12037, Unknown=0, NotChecked=0, Total=14520 [2021-06-05 12:53:24,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 12:53:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 12:53:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 12:53:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 12:53:24,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2021-06-05 12:53:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:53:24,603 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 12:53:24,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 41 states have (on average 4.634146341463414) internal successors, (190), 42 states have internal predecessors, (190), 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) [2021-06-05 12:53:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 12:53:24,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 12:53:24,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-05 12:53:24,818 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 12:53:24,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:53:24 BasicIcfg [2021-06-05 12:53:24,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 12:53:24,820 INFO L168 Benchmark]: Toolchain (without parser) took 129932.53 ms. Allocated memory was 346.0 MB in the beginning and 662.7 MB in the end (delta: 316.7 MB). Free memory was 308.0 MB in the beginning and 470.6 MB in the end (delta: -162.5 MB). Peak memory consumption was 155.7 MB. Max. memory is 16.0 GB. [2021-06-05 12:53:24,820 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 346.0 MB. Free memory is still 326.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:53:24,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.84 ms. Allocated memory is still 346.0 MB. Free memory was 307.9 MB in the beginning and 328.9 MB in the end (delta: -21.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:53:24,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.18 ms. Allocated memory is still 346.0 MB. Free memory was 328.9 MB in the beginning and 326.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:53:24,820 INFO L168 Benchmark]: Boogie Preprocessor took 34.64 ms. Allocated memory is still 346.0 MB. Free memory was 326.8 MB in the beginning and 325.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:53:24,820 INFO L168 Benchmark]: RCFGBuilder took 361.69 ms. Allocated memory is still 346.0 MB. Free memory was 325.7 MB in the beginning and 297.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 12:53:24,820 INFO L168 Benchmark]: TraceAbstraction took 129267.95 ms. Allocated memory was 346.0 MB in the beginning and 662.7 MB in the end (delta: 316.7 MB). Free memory was 297.4 MB in the beginning and 470.6 MB in the end (delta: -173.1 MB). Peak memory consumption was 146.7 MB. Max. memory is 16.0 GB. [2021-06-05 12:53:24,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 346.0 MB. Free memory is still 326.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 224.84 ms. Allocated memory is still 346.0 MB. Free memory was 307.9 MB in the beginning and 328.9 MB in the end (delta: -21.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.18 ms. Allocated memory is still 346.0 MB. Free memory was 328.9 MB in the beginning and 326.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.64 ms. Allocated memory is still 346.0 MB. Free memory was 326.8 MB in the beginning and 325.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 361.69 ms. Allocated memory is still 346.0 MB. Free memory was 325.7 MB in the beginning and 297.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 129267.95 ms. Allocated memory was 346.0 MB in the beginning and 662.7 MB in the end (delta: 316.7 MB). Free memory was 297.4 MB in the beginning and 470.6 MB in the end (delta: -173.1 MB). Peak memory consumption was 146.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 159 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 129135.3ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 118.3ms, AutomataDifference: 112715.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 74.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5252 SDtfs, 22336 SDslu, 60873 SDs, 0 SdLazy, 32548 SolverSat, 904 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17431.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1241 GetRequests, 306 SyntacticMatches, 24 SemanticMatches, 911 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14732 ImplicationChecksByTransitivity, 100125.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4598occurred in iteration=14, InterpolantAutomatonStates: 652, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1520.3ms AutomataMinimizationTime, 15 MinimizatonAttempts, 78269 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 82.5ms SsaConstructionTime, 391.4ms SatisfiabilityAnalysisTime, 13295.7ms InterpolantComputationTime, 1809 NumberOfCodeBlocks, 1800 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1791 ConstructedInterpolants, 43 QuantifiedInterpolants, 28889 SizeOfPredicates, 80 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 9/15 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...