/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/distributed_search2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:26:35,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:26:35,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:26:35,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 20:26:35,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 20:26:35,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 20:26:35,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 20:26:35,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 20:26:35,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 20:26:35,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 20:26:35,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 20:26:35,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 20:26:35,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 20:26:35,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 20:26:35,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 20:26:35,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 20:26:35,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 20:26:35,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 20:26:35,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 20:26:35,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 20:26:35,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 20:26:35,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 20:26:35,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 20:26:35,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 20:26:35,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 20:26:35,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 20:26:35,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 20:26:35,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 20:26:35,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 20:26:35,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 20:26:35,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 20:26:35,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 20:26:35,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 20:26:35,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 20:26:35,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 20:26:35,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 20:26:35,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 20:26:35,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 20:26:35,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:26:35,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:26:35,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:26:35,970 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.epf [2021-06-05 20:26:36,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:26:36,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:26:36,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:26:36,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:26:36,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:26:36,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:26:36,007 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:26:36,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:26:36,007 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:26:36,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:26:36,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:26:36,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:26:36,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:26:36,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:26:36,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:26:36,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:26:36,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:26:36,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:26:36,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:26:36,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:26:36,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:26:36,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:26:36,011 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:26:36,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:26:36,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:26:36,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:26:36,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:26:36,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:26:36,343 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:26:36,343 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:26:36,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/distributed_search2.c [2021-06-05 20:26:36,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1625cdde/7619ab3b279b496ab78fe863a9943dae/FLAGfd3fc0910 [2021-06-05 20:26:36,834 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:26:36,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/distributed_search2.c [2021-06-05 20:26:36,834 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 20:26:36,834 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 20:26:36,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1625cdde/7619ab3b279b496ab78fe863a9943dae/FLAGfd3fc0910 [2021-06-05 20:26:36,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1625cdde/7619ab3b279b496ab78fe863a9943dae [2021-06-05 20:26:36,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:26:36,889 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:26:36,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:26:36,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:26:36,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:26:36,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:26:36" (1/1) ... [2021-06-05 20:26:36,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9b015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:36, skipping insertion in model container [2021-06-05 20:26:36,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:26:36" (1/1) ... [2021-06-05 20:26:36,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:26:36,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:26:37,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:26:37,145 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:26:37,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:26:37,187 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:26:37,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37 WrapperNode [2021-06-05 20:26:37,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:26:37,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:26:37,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:26:37,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:26:37,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:26:37,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:26:37,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:26:37,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:26:37,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (1/1) ... [2021-06-05 20:26:37,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:26:37,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:26:37,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:26:37,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:26:37,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (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 20:26:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:26:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure search_worker [2021-06-05 20:26:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure search_worker [2021-06-05 20:26:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:26:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:26:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:26:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 20:26:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:26:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:26:37,336 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 20:26:37,812 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:26:37,812 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-05 20:26:37,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:26:37 BoogieIcfgContainer [2021-06-05 20:26:37,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:26:37,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:26:37,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:26:37,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:26:37,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:26:36" (1/3) ... [2021-06-05 20:26:37,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea0cac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:26:37, skipping insertion in model container [2021-06-05 20:26:37,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:26:37" (2/3) ... [2021-06-05 20:26:37,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea0cac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:26:37, skipping insertion in model container [2021-06-05 20:26:37,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:26:37" (3/3) ... [2021-06-05 20:26:37,821 INFO L111 eAbstractionObserver]: Analyzing ICFG distributed_search2.c [2021-06-05 20:26:37,828 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:26:37,828 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:26:37,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 20:26:37,829 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:26:37,872 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,873 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,873 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,873 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,873 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,873 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,874 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,874 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,874 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,874 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,874 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,874 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,875 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,875 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,875 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,875 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,875 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,876 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,876 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,876 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,876 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,876 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,876 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,876 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,877 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,877 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,877 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,877 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,877 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,877 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,878 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,878 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,878 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,878 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,878 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,878 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,879 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,879 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,879 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,879 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,879 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,879 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,880 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,880 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,880 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,880 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,880 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,880 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,880 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,881 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,881 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,881 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,881 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,881 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,881 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,882 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,882 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,882 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,882 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,882 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,882 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,882 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,883 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,883 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,883 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,883 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,883 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,883 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,884 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,884 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,884 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,884 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,884 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,884 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,885 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,885 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,885 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,885 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,885 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,885 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,886 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,887 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,887 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,887 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,887 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,887 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,887 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,887 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,888 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,888 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,888 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,888 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,888 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,888 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,889 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,889 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,889 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,889 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,889 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,889 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,890 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,890 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,890 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,890 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,890 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,890 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,890 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,891 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,891 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,891 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,891 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,891 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,891 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,891 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,892 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,892 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,892 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,892 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,892 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,892 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,892 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,893 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,893 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,893 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,893 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,893 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,893 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,894 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,894 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,894 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,894 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,894 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,894 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,894 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,895 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,895 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,895 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,895 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,895 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,895 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,896 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,896 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,896 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,896 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,896 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,896 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,896 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,897 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,897 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,897 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,897 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,897 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,897 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,899 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,899 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,899 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,899 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,900 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,900 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,900 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,900 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,900 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,900 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,901 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,901 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,901 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,905 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,906 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,906 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,906 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,906 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,906 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,906 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,907 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,907 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,907 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,907 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,907 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,907 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:26:37,916 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 20:26:37,934 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 20:26:37,949 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:26:37,950 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:26:37,950 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:26:37,950 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:26:37,950 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:26:37,950 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:26:37,950 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:26:37,950 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:26:37,960 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 144 transitions, 310 flow [2021-06-05 20:26:38,046 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 20:26:38,053 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 20:26:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 20:26:38,077 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:26:38,078 INFO L554 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 20:26:38,078 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:26:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:26:38,083 INFO L82 PathProgramCache]: Analyzing trace with hash -2074390617, now seen corresponding path program 1 times [2021-06-05 20:26:38,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:26:38,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965882406] [2021-06-05 20:26:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:26:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:26:38,319 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 20:26:38,319 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:26:38,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965882406] [2021-06-05 20:26:38,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965882406] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:26:38,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:26:38,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 20:26:38,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672777947] [2021-06-05 20:26:38,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 20:26:38,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:26:38,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 20:26:38,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 20:26:38,349 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 20:26:38,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:26:38,390 INFO L93 Difference]: Finished difference Result 2341 states and 6253 transitions. [2021-06-05 20:26:38,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 20:26:38,391 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 20:26:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:26:38,413 INFO L225 Difference]: With dead ends: 2341 [2021-06-05 20:26:38,414 INFO L226 Difference]: Without dead ends: 2329 [2021-06-05 20:26:38,415 INFO L810 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 20:26:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2021-06-05 20:26:38,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2021-06-05 20:26:38,539 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 20:26:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 6240 transitions. [2021-06-05 20:26:38,548 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 6240 transitions. Word has length 93 [2021-06-05 20:26:38,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:26:38,549 INFO L482 AbstractCegarLoop]: Abstraction has 2329 states and 6240 transitions. [2021-06-05 20:26:38,549 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 20:26:38,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 6240 transitions. [2021-06-05 20:26:38,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 20:26:38,555 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:26:38,556 INFO L554 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 20:26:38,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:26:38,556 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:26:38,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:26:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash -2141397370, now seen corresponding path program 1 times [2021-06-05 20:26:38,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:26:38,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380659577] [2021-06-05 20:26:38,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:26:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:26:38,782 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 20:26:38,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:26:38,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380659577] [2021-06-05 20:26:38,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380659577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:26:38,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:26:38,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 20:26:38,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423762256] [2021-06-05 20:26:38,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:26:38,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:26:38,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:26:38,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:26:38,787 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 20:26:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:26:38,867 INFO L93 Difference]: Finished difference Result 4024 states and 10873 transitions. [2021-06-05 20:26:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:26:38,868 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 20:26:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:26:38,886 INFO L225 Difference]: With dead ends: 4024 [2021-06-05 20:26:38,887 INFO L226 Difference]: Without dead ends: 4024 [2021-06-05 20:26:38,887 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:26:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2021-06-05 20:26:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3655. [2021-06-05 20:26:38,993 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 20:26:39,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9899 transitions. [2021-06-05 20:26:39,009 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9899 transitions. Word has length 93 [2021-06-05 20:26:39,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:26:39,010 INFO L482 AbstractCegarLoop]: Abstraction has 3655 states and 9899 transitions. [2021-06-05 20:26:39,010 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 20:26:39,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9899 transitions. [2021-06-05 20:26:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 20:26:39,019 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:26:39,019 INFO L554 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 20:26:39,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:26:39,020 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:26:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:26:39,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1171123383, now seen corresponding path program 1 times [2021-06-05 20:26:39,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:26:39,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519097382] [2021-06-05 20:26:39,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:26:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:26:39,107 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 20:26:39,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:26:39,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519097382] [2021-06-05 20:26:39,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519097382] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:26:39,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:26:39,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:26:39,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049743891] [2021-06-05 20:26:39,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:26:39,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:26:39,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:26:39,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:26:39,109 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 20:26:39,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:26:39,264 INFO L93 Difference]: Finished difference Result 3660 states and 9903 transitions. [2021-06-05 20:26:39,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 20:26:39,264 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 20:26:39,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:26:39,279 INFO L225 Difference]: With dead ends: 3660 [2021-06-05 20:26:39,279 INFO L226 Difference]: Without dead ends: 3590 [2021-06-05 20:26:39,280 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 124.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:26:39,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2021-06-05 20:26:39,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3590. [2021-06-05 20:26:39,356 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 20:26:39,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 9750 transitions. [2021-06-05 20:26:39,370 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 9750 transitions. Word has length 93 [2021-06-05 20:26:39,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:26:39,370 INFO L482 AbstractCegarLoop]: Abstraction has 3590 states and 9750 transitions. [2021-06-05 20:26:39,370 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 20:26:39,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 9750 transitions. [2021-06-05 20:26:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:26:39,379 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:26:39,379 INFO L554 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 20:26:39,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:26:39,379 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:26:39,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:26:39,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1845873909, now seen corresponding path program 1 times [2021-06-05 20:26:39,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:26:39,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76703415] [2021-06-05 20:26:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:26:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:26:39,773 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 20:26:39,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:26:39,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76703415] [2021-06-05 20:26:39,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76703415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:26:39,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:26:39,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 20:26:39,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808118819] [2021-06-05 20:26:39,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 20:26:39,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:26:39,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 20:26:39,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-05 20:26:39,778 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 20:26:40,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:26:40,071 INFO L93 Difference]: Finished difference Result 3590 states and 9749 transitions. [2021-06-05 20:26:40,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:26:40,071 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 20:26:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:26:40,087 INFO L225 Difference]: With dead ends: 3590 [2021-06-05 20:26:40,087 INFO L226 Difference]: Without dead ends: 3476 [2021-06-05 20:26:40,088 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 237.0ms TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-06-05 20:26:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2021-06-05 20:26:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3476. [2021-06-05 20:26:40,162 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 20:26:40,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 9515 transitions. [2021-06-05 20:26:40,173 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 9515 transitions. Word has length 102 [2021-06-05 20:26:40,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:26:40,174 INFO L482 AbstractCegarLoop]: Abstraction has 3476 states and 9515 transitions. [2021-06-05 20:26:40,175 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 20:26:40,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 9515 transitions. [2021-06-05 20:26:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:26:40,188 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:26:40,189 INFO L554 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 20:26:40,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:26:40,190 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:26:40,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:26:40,191 INFO L82 PathProgramCache]: Analyzing trace with hash 784752911, now seen corresponding path program 1 times [2021-06-05 20:26:40,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:26:40,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710681705] [2021-06-05 20:26:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:26:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:26:41,797 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 20:26:41,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:26:41,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710681705] [2021-06-05 20:26:41,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710681705] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:26:41,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:26:41,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:26:41,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968433716] [2021-06-05 20:26:41,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:26:41,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:26:41,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:26:41,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:26:41,801 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 20:26:43,179 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-06-05 20:26:43,411 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 20:26:43,699 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 20:26:43,960 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:26:44,225 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 20:26:44,572 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:26:44,872 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:26:45,158 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 20:26:45,513 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:26:45,687 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-06-05 20:26:45,993 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 20:26:46,223 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-06-05 20:26:46,553 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2021-06-05 20:26:46,957 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 110 [2021-06-05 20:26:47,308 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2021-06-05 20:26:47,689 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 20:26:47,864 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2021-06-05 20:26:48,266 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2021-06-05 20:26:48,464 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-06-05 20:26:48,876 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 115 [2021-06-05 20:26:49,104 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 20:26:49,263 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 20:26:49,595 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 118 [2021-06-05 20:26:49,863 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 93 [2021-06-05 20:26:50,061 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 20:26:50,402 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 115 [2021-06-05 20:26:50,635 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2021-06-05 20:26:50,897 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 95 [2021-06-05 20:26:51,065 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 20:26:51,391 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 20:26:51,647 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 108 [2021-06-05 20:26:51,899 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 93 [2021-06-05 20:26:52,081 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 20:26:52,363 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 101 [2021-06-05 20:26:52,628 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 110 [2021-06-05 20:26:52,898 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:26:53,137 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2021-06-05 20:26:53,365 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 20:26:53,777 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 20:26:54,081 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 20:26:54,324 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 20:26:54,640 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 20:26:54,923 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 110 [2021-06-05 20:26:55,123 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 20:26:55,442 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 20:26:55,740 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 20:26:56,036 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:26:56,232 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 20:26:56,571 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 20:26:56,869 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 20:26:57,280 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 20:26:57,577 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 20:26:58,021 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2021-06-05 20:26:58,387 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 20:26:58,830 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 121 [2021-06-05 20:26:59,154 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 20:26:59,354 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 20:26:59,722 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 118 [2021-06-05 20:27:00,289 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 121 [2021-06-05 20:27:00,473 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 20:27:00,968 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 118 [2021-06-05 20:27:01,263 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 115 [2021-06-05 20:27:01,468 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2021-06-05 20:27:01,682 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 100 [2021-06-05 20:27:01,888 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 20:27:02,133 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 20:27:02,560 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 118 [2021-06-05 20:27:02,763 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 98 [2021-06-05 20:27:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:27:02,788 INFO L93 Difference]: Finished difference Result 14303 states and 39407 transitions. [2021-06-05 20:27:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-05 20:27:02,788 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 20:27:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:27:02,841 INFO L225 Difference]: With dead ends: 14303 [2021-06-05 20:27:02,841 INFO L226 Difference]: Without dead ends: 14195 [2021-06-05 20:27:02,844 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2224 ImplicationChecksByTransitivity, 18462.8ms TimeCoverageRelationStatistics Valid=2926, Invalid=8416, Unknown=0, NotChecked=0, Total=11342 [2021-06-05 20:27:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14195 states. [2021-06-05 20:27:03,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14195 to 3990. [2021-06-05 20:27:03,020 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 20:27:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 10960 transitions. [2021-06-05 20:27:03,033 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 10960 transitions. Word has length 102 [2021-06-05 20:27:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:27:03,034 INFO L482 AbstractCegarLoop]: Abstraction has 3990 states and 10960 transitions. [2021-06-05 20:27:03,034 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 20:27:03,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 10960 transitions. [2021-06-05 20:27:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:27:03,042 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:27:03,043 INFO L554 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 20:27:03,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:27:03,043 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:27:03,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:27:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2093190869, now seen corresponding path program 1 times [2021-06-05 20:27:03,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:27:03,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073929138] [2021-06-05 20:27:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:27:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:27:03,431 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 20:27:03,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:27:03,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073929138] [2021-06-05 20:27:03,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073929138] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 20:27:03,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239627837] [2021-06-05 20:27:03,432 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 20:27:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:27:03,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-05 20:27:03,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 20:27:04,044 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 20:27:04,046 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 20:27:04,047 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 20:27:04,049 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 20:27:04,049 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2021-06-05 20:27:04,053 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 20:27:04,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239627837] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 20:27:04,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 20:27:04,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 27 [2021-06-05 20:27:04,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734741449] [2021-06-05 20:27:04,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:27:04,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:27:04,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:27:04,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:27:04,064 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 20:27:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:27:05,436 INFO L93 Difference]: Finished difference Result 5233 states and 14428 transitions. [2021-06-05 20:27:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 20:27:05,436 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 20:27:05,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:27:05,445 INFO L225 Difference]: With dead ends: 5233 [2021-06-05 20:27:05,445 INFO L226 Difference]: Without dead ends: 4100 [2021-06-05 20:27:05,445 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1236.0ms TimeCoverageRelationStatistics Valid=491, Invalid=1671, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 20:27:05,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2021-06-05 20:27:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 2850. [2021-06-05 20:27:05,522 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 20:27:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 7782 transitions. [2021-06-05 20:27:05,529 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 7782 transitions. Word has length 102 [2021-06-05 20:27:05,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:27:05,529 INFO L482 AbstractCegarLoop]: Abstraction has 2850 states and 7782 transitions. [2021-06-05 20:27:05,530 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 20:27:05,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 7782 transitions. [2021-06-05 20:27:05,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:27:05,535 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:27:05,535 INFO L554 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 20:27:05,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-05 20:27:05,756 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:27:05,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:27:05,757 INFO L82 PathProgramCache]: Analyzing trace with hash 24075019, now seen corresponding path program 2 times [2021-06-05 20:27:05,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:27:05,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51018167] [2021-06-05 20:27:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:27:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:27:06,993 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 20:27:06,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:27:06,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51018167] [2021-06-05 20:27:06,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51018167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:27:06,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:27:06,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:27:06,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016961767] [2021-06-05 20:27:06,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:27:06,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:27:06,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:27:06,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:27:06,995 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 20:27:08,249 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-06-05 20:27:08,419 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 20:27:08,648 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 20:27:08,904 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:09,159 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 20:27:09,390 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:09,658 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:09,920 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 20:27:10,161 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:10,440 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 20:27:10,736 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 20:27:11,027 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:11,361 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 20:27:11,693 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 20:27:12,041 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 20:27:12,402 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 20:27:12,778 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 20:27:13,115 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 20:27:13,476 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 20:27:13,761 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 106 [2021-06-05 20:27:14,045 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 108 [2021-06-05 20:27:14,320 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 106 [2021-06-05 20:27:14,598 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 20:27:14,915 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 20:27:15,202 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 20:27:15,496 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 20:27:15,816 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 20:27:16,210 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 20:27:16,518 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 98 [2021-06-05 20:27:16,718 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2021-06-05 20:27:17,048 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-06-05 20:27:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:27:17,061 INFO L93 Difference]: Finished difference Result 8692 states and 24140 transitions. [2021-06-05 20:27:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 20:27:17,061 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 20:27:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:27:17,077 INFO L225 Difference]: With dead ends: 8692 [2021-06-05 20:27:17,077 INFO L226 Difference]: Without dead ends: 7900 [2021-06-05 20:27:17,078 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 8949.6ms TimeCoverageRelationStatistics Valid=1220, Invalid=3202, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 20:27:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2021-06-05 20:27:17,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 2906. [2021-06-05 20:27:17,162 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 20:27:17,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 7944 transitions. [2021-06-05 20:27:17,169 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 7944 transitions. Word has length 102 [2021-06-05 20:27:17,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:27:17,170 INFO L482 AbstractCegarLoop]: Abstraction has 2906 states and 7944 transitions. [2021-06-05 20:27:17,170 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 20:27:17,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 7944 transitions. [2021-06-05 20:27:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:27:17,176 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:27:17,176 INFO L554 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 20:27:17,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 20:27:17,176 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:27:17,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:27:17,177 INFO L82 PathProgramCache]: Analyzing trace with hash -493318163, now seen corresponding path program 3 times [2021-06-05 20:27:17,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:27:17,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455352322] [2021-06-05 20:27:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:27:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:27:18,202 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 20:27:18,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:27:18,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455352322] [2021-06-05 20:27:18,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455352322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:27:18,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:27:18,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:27:18,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028834307] [2021-06-05 20:27:18,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:27:18,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:27:18,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:27:18,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:27:18,204 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 20:27:19,478 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 20:27:19,699 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 20:27:19,940 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:20,178 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 20:27:20,409 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:20,673 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:20,936 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 20:27:21,167 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:21,431 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 20:27:21,724 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 20:27:22,041 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:22,358 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 20:27:22,748 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 20:27:22,995 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:23,300 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 20:27:23,646 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 20:27:23,978 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 20:27:24,318 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-06-05 20:27:24,618 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 20:27:24,951 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 20:27:25,259 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 20:27:25,545 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 20:27:25,903 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-06-05 20:27:26,244 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 120 [2021-06-05 20:27:26,545 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 20:27:26,835 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 20:27:27,096 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 20:27:27,420 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 20:27:27,930 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 117 [2021-06-05 20:27:28,189 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 114 [2021-06-05 20:27:28,376 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2021-06-05 20:27:28,801 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-06-05 20:27:29,061 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 109 [2021-06-05 20:27:29,315 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 112 [2021-06-05 20:27:29,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:27:29,361 INFO L93 Difference]: Finished difference Result 11280 states and 31453 transitions. [2021-06-05 20:27:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 20:27:29,361 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 20:27:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:27:29,383 INFO L225 Difference]: With dead ends: 11280 [2021-06-05 20:27:29,383 INFO L226 Difference]: Without dead ends: 10696 [2021-06-05 20:27:29,385 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 10034.6ms TimeCoverageRelationStatistics Valid=1425, Invalid=3831, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 20:27:29,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10696 states. [2021-06-05 20:27:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10696 to 3006. [2021-06-05 20:27:29,479 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 20:27:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 8231 transitions. [2021-06-05 20:27:29,485 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 8231 transitions. Word has length 102 [2021-06-05 20:27:29,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:27:29,485 INFO L482 AbstractCegarLoop]: Abstraction has 3006 states and 8231 transitions. [2021-06-05 20:27:29,486 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 20:27:29,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 8231 transitions. [2021-06-05 20:27:29,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:27:29,492 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:27:29,492 INFO L554 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 20:27:29,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 20:27:29,493 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:27:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:27:29,493 INFO L82 PathProgramCache]: Analyzing trace with hash 758725677, now seen corresponding path program 4 times [2021-06-05 20:27:29,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:27:29,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754171865] [2021-06-05 20:27:29,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:27:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:27:30,556 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 20:27:30,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:27:30,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754171865] [2021-06-05 20:27:30,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754171865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:27:30,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:27:30,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:27:30,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170078799] [2021-06-05 20:27:30,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:27:30,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:27:30,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:27:30,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:27:30,558 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 20:27:31,808 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 20:27:32,028 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 20:27:32,267 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:32,504 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 20:27:32,675 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-06-05 20:27:32,880 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:33,149 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:33,430 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 20:27:33,614 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 20:27:33,949 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:34,132 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-06-05 20:27:34,375 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 20:27:34,572 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2021-06-05 20:27:34,881 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 20:27:35,083 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-06-05 20:27:35,359 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:35,592 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-06-05 20:27:35,861 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 20:27:36,068 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-06-05 20:27:36,366 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:36,567 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2021-06-05 20:27:36,748 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-06-05 20:27:37,066 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 20:27:37,286 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 89 [2021-06-05 20:27:37,649 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 119 [2021-06-05 20:27:37,928 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 113 [2021-06-05 20:27:38,241 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 110 [2021-06-05 20:27:38,486 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 101 [2021-06-05 20:27:38,865 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 121 [2021-06-05 20:27:39,183 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2021-06-05 20:27:39,444 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:39,638 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2021-06-05 20:27:39,985 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 120 [2021-06-05 20:27:40,274 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 112 [2021-06-05 20:27:40,568 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 20:27:40,831 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 105 [2021-06-05 20:27:41,042 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 20:27:41,469 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 118 [2021-06-05 20:27:41,739 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2021-06-05 20:27:42,025 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 20:27:42,298 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:42,533 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2021-06-05 20:27:42,870 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 20:27:43,148 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 20:27:43,409 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2021-06-05 20:27:43,652 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 20:27:44,109 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 20:27:44,402 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 111 [2021-06-05 20:27:44,659 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 20:27:44,970 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 20:27:45,248 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 20:27:45,528 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 20:27:45,871 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2021-06-05 20:27:46,160 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 20:27:46,483 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 20:27:46,749 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 20:27:47,180 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 115 [2021-06-05 20:27:47,421 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 107 [2021-06-05 20:27:47,989 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-06-05 20:27:48,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:27:48,001 INFO L93 Difference]: Finished difference Result 12712 states and 35518 transitions. [2021-06-05 20:27:48,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-06-05 20:27:48,002 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 20:27:48,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:27:48,022 INFO L225 Difference]: With dead ends: 12712 [2021-06-05 20:27:48,022 INFO L226 Difference]: Without dead ends: 11828 [2021-06-05 20:27:48,024 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 15753.7ms TimeCoverageRelationStatistics Valid=2559, Invalid=7541, Unknown=0, NotChecked=0, Total=10100 [2021-06-05 20:27:48,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11828 states. [2021-06-05 20:27:48,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11828 to 2950. [2021-06-05 20:27:48,124 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 20:27:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 8045 transitions. [2021-06-05 20:27:48,130 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 8045 transitions. Word has length 102 [2021-06-05 20:27:48,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:27:48,130 INFO L482 AbstractCegarLoop]: Abstraction has 2950 states and 8045 transitions. [2021-06-05 20:27:48,130 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 20:27:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 8045 transitions. [2021-06-05 20:27:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:27:48,136 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:27:48,136 INFO L554 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 20:27:48,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 20:27:48,136 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:27:48,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:27:48,137 INFO L82 PathProgramCache]: Analyzing trace with hash 2053722345, now seen corresponding path program 5 times [2021-06-05 20:27:48,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:27:48,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612832325] [2021-06-05 20:27:48,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:27:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:27:49,109 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 20:27:49,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:27:49,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612832325] [2021-06-05 20:27:49,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612832325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:27:49,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:27:49,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:27:49,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063808592] [2021-06-05 20:27:49,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:27:49,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:27:49,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:27:49,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:27:49,111 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 20:27:50,208 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-06-05 20:27:50,379 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 20:27:50,594 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 20:27:50,837 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:51,076 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 20:27:51,243 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2021-06-05 20:27:51,433 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 20:27:51,711 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:51,988 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 20:27:52,146 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-06-05 20:27:52,470 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 20:27:52,639 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-06-05 20:27:52,884 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 20:27:53,066 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-06-05 20:27:53,386 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 20:27:53,830 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:54,274 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 20:27:54,454 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2021-06-05 20:27:54,729 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 20:27:54,911 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2021-06-05 20:27:55,338 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 20:27:55,538 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 20:27:55,889 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 116 [2021-06-05 20:27:56,153 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 107 [2021-06-05 20:27:56,407 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 20:27:56,638 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2021-06-05 20:27:57,004 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 118 [2021-06-05 20:27:57,305 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 115 [2021-06-05 20:27:57,549 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 20:27:57,788 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 20:27:57,967 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 79 [2021-06-05 20:27:58,300 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 20:27:58,635 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 113 [2021-06-05 20:27:58,885 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 20:27:59,131 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 20:27:59,330 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 20:27:59,753 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 20:28:00,015 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 20:28:00,323 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2021-06-05 20:28:00,575 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 20:28:00,797 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2021-06-05 20:28:01,148 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 20:28:01,457 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 116 [2021-06-05 20:28:01,717 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 20:28:01,947 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 20:28:02,290 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 20:28:02,579 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2021-06-05 20:28:02,820 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 99 [2021-06-05 20:28:03,124 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 20:28:03,424 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 20:28:03,784 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 119 [2021-06-05 20:28:04,075 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-06-05 20:28:04,356 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 20:28:04,642 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 20:28:05,174 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 20:28:05,429 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 20:28:05,663 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 104 [2021-06-05 20:28:06,275 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 102 [2021-06-05 20:28:06,511 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 105 [2021-06-05 20:28:06,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:06,520 INFO L93 Difference]: Finished difference Result 13915 states and 39068 transitions. [2021-06-05 20:28:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-05 20:28:06,521 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 20:28:06,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:06,546 INFO L225 Difference]: With dead ends: 13915 [2021-06-05 20:28:06,546 INFO L226 Difference]: Without dead ends: 13879 [2021-06-05 20:28:06,549 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2047 ImplicationChecksByTransitivity, 15464.2ms TimeCoverageRelationStatistics Valid=2632, Invalid=7670, Unknown=0, NotChecked=0, Total=10302 [2021-06-05 20:28:06,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13879 states. [2021-06-05 20:28:06,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13879 to 2958. [2021-06-05 20:28:06,666 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 20:28:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 8067 transitions. [2021-06-05 20:28:06,673 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 8067 transitions. Word has length 102 [2021-06-05 20:28:06,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:06,673 INFO L482 AbstractCegarLoop]: Abstraction has 2958 states and 8067 transitions. [2021-06-05 20:28:06,673 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 20:28:06,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 8067 transitions. [2021-06-05 20:28:06,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:28:06,679 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:06,679 INFO L554 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 20:28:06,679 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 20:28:06,679 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:06,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:06,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1312889223, now seen corresponding path program 6 times [2021-06-05 20:28:06,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:06,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060732322] [2021-06-05 20:28:06,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:08,086 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 20:28:08,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:08,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060732322] [2021-06-05 20:28:08,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060732322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:08,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:08,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:28:08,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121490283] [2021-06-05 20:28:08,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:08,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:08,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:08,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:08,088 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 20:28:09,243 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-06-05 20:28:09,445 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-06-05 20:28:09,683 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 20:28:09,916 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 20:28:10,136 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 20:28:10,387 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 20:28:10,640 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 20:28:10,861 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 20:28:11,106 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2021-06-05 20:28:11,396 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2021-06-05 20:28:11,676 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 20:28:11,971 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 20:28:12,235 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 20:28:12,511 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 20:28:12,806 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 20:28:13,085 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 20:28:13,383 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 20:28:13,697 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 113 [2021-06-05 20:28:14,117 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 116 [2021-06-05 20:28:14,394 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2021-06-05 20:28:14,643 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 106 [2021-06-05 20:28:14,936 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 102 [2021-06-05 20:28:15,291 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2021-06-05 20:28:15,441 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-06-05 20:28:15,678 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-06-05 20:28:15,852 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-06-05 20:28:15,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:15,870 INFO L93 Difference]: Finished difference Result 10774 states and 30232 transitions. [2021-06-05 20:28:15,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 20:28:15,870 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 20:28:15,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:15,884 INFO L225 Difference]: With dead ends: 10774 [2021-06-05 20:28:15,884 INFO L226 Difference]: Without dead ends: 10762 [2021-06-05 20:28:15,885 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 7137.8ms TimeCoverageRelationStatistics Valid=1017, Invalid=2889, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 20:28:15,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2021-06-05 20:28:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 2962. [2021-06-05 20:28:15,984 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 20:28:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 8078 transitions. [2021-06-05 20:28:15,990 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 8078 transitions. Word has length 102 [2021-06-05 20:28:15,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:15,990 INFO L482 AbstractCegarLoop]: Abstraction has 2962 states and 8078 transitions. [2021-06-05 20:28:15,990 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 20:28:15,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 8078 transitions. [2021-06-05 20:28:15,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:28:15,995 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:15,995 INFO L554 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 20:28:15,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 20:28:15,995 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:15,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:15,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1746865035, now seen corresponding path program 7 times [2021-06-05 20:28:15,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:15,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987242142] [2021-06-05 20:28:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:17,270 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 20:28:17,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:17,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987242142] [2021-06-05 20:28:17,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987242142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:17,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:17,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:28:17,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291167159] [2021-06-05 20:28:17,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:17,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:17,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:17,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:17,272 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 20:28:18,413 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-06-05 20:28:18,621 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-06-05 20:28:18,850 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 20:28:19,073 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 20:28:19,288 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 20:28:19,537 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 20:28:19,789 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 20:28:20,010 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 20:28:20,258 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2021-06-05 20:28:20,548 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2021-06-05 20:28:20,827 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 20:28:21,121 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 20:28:21,390 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 20:28:21,671 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 20:28:21,968 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 20:28:22,259 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 20:28:22,546 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 20:28:22,844 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 112 [2021-06-05 20:28:23,301 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2021-06-05 20:28:23,453 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-06-05 20:28:23,686 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-06-05 20:28:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:23,697 INFO L93 Difference]: Finished difference Result 8524 states and 23750 transitions. [2021-06-05 20:28:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:28:23,697 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 20:28:23,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:23,706 INFO L225 Difference]: With dead ends: 8524 [2021-06-05 20:28:23,707 INFO L226 Difference]: Without dead ends: 8524 [2021-06-05 20:28:23,707 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 5870.0ms TimeCoverageRelationStatistics Valid=835, Invalid=2471, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:28:23,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8524 states. [2021-06-05 20:28:23,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8524 to 2990. [2021-06-05 20:28:23,811 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 20:28:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 8159 transitions. [2021-06-05 20:28:23,816 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 8159 transitions. Word has length 102 [2021-06-05 20:28:23,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:23,816 INFO L482 AbstractCegarLoop]: Abstraction has 2990 states and 8159 transitions. [2021-06-05 20:28:23,817 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 20:28:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 8159 transitions. [2021-06-05 20:28:23,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:28:23,821 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:23,822 INFO L554 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 20:28:23,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 20:28:23,822 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:23,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:23,822 INFO L82 PathProgramCache]: Analyzing trace with hash -952833125, now seen corresponding path program 8 times [2021-06-05 20:28:23,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:23,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348102823] [2021-06-05 20:28:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:24,809 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 20:28:24,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:24,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348102823] [2021-06-05 20:28:24,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348102823] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 20:28:24,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377783665] [2021-06-05 20:28:24,809 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 20:28:24,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 20:28:24,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 20:28:24,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-05 20:28:24,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 20:28:25,326 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 20:28:25,332 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 20:28:25,333 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 20:28:25,334 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 20:28:25,334 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2021-06-05 20:28:25,338 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 20:28:25,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377783665] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 20:28:25,338 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 20:28:25,338 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 14] total 37 [2021-06-05 20:28:25,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697397971] [2021-06-05 20:28:25,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-05 20:28:25,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:25,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-05 20:28:25,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2021-06-05 20:28:25,341 INFO L87 Difference]: Start difference. First operand 2990 states and 8159 transitions. Second operand has 38 states, 37 states have (on average 5.135135135135135) internal successors, (190), 38 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 20:28:26,792 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-06-05 20:28:27,082 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-06-05 20:28:29,105 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-06-05 20:28:30,924 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2021-06-05 20:28:32,483 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-06-05 20:28:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:34,496 INFO L93 Difference]: Finished difference Result 16320 states and 45744 transitions. [2021-06-05 20:28:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-05 20:28:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 5.135135135135135) internal successors, (190), 38 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 20:28:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:34,500 INFO L225 Difference]: With dead ends: 16320 [2021-06-05 20:28:34,501 INFO L226 Difference]: Without dead ends: 2370 [2021-06-05 20:28:34,504 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3669 ImplicationChecksByTransitivity, 8486.9ms TimeCoverageRelationStatistics Valid=3075, Invalid=12425, Unknown=0, NotChecked=0, Total=15500 [2021-06-05 20:28:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2021-06-05 20:28:34,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1546. [2021-06-05 20:28:34,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1545 states have (on average 2.598705501618123) internal successors, (4015), 1545 states have internal predecessors, (4015), 0 states have call successors, (0), 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 20:28:34,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 4015 transitions. [2021-06-05 20:28:34,536 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 4015 transitions. Word has length 102 [2021-06-05 20:28:34,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:34,536 INFO L482 AbstractCegarLoop]: Abstraction has 1546 states and 4015 transitions. [2021-06-05 20:28:34,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 37 states have (on average 5.135135135135135) internal successors, (190), 38 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 20:28:34,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 4015 transitions. [2021-06-05 20:28:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:28:34,539 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:34,539 INFO L554 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 20:28:34,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-05 20:28:34,763 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:34,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:34,764 INFO L82 PathProgramCache]: Analyzing trace with hash 158919899, now seen corresponding path program 9 times [2021-06-05 20:28:34,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:34,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405835120] [2021-06-05 20:28:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:36,234 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 20:28:36,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:36,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405835120] [2021-06-05 20:28:36,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405835120] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:36,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:36,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:28:36,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265272782] [2021-06-05 20:28:36,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:36,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:36,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:36,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:36,236 INFO L87 Difference]: Start difference. First operand 1546 states and 4015 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 20:28:37,327 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2021-06-05 20:28:37,495 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-06-05 20:28:37,670 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 20:28:37,832 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-06-05 20:28:38,026 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 20:28:38,224 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-06-05 20:28:38,399 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 20:28:38,588 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-06-05 20:28:38,809 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2021-06-05 20:28:39,066 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-06-05 20:28:39,298 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2021-06-05 20:28:39,524 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2021-06-05 20:28:39,759 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2021-06-05 20:28:39,892 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-06-05 20:28:40,158 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2021-06-05 20:28:40,450 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 104 [2021-06-05 20:28:40,721 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2021-06-05 20:28:41,120 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 105 [2021-06-05 20:28:41,415 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 108 [2021-06-05 20:28:41,681 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 105 [2021-06-05 20:28:41,949 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 107 [2021-06-05 20:28:42,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:42,282 INFO L93 Difference]: Finished difference Result 5082 states and 13602 transitions. [2021-06-05 20:28:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:28:42,283 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 20:28:42,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:42,287 INFO L225 Difference]: With dead ends: 5082 [2021-06-05 20:28:42,287 INFO L226 Difference]: Without dead ends: 5082 [2021-06-05 20:28:42,288 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 6236.5ms TimeCoverageRelationStatistics Valid=841, Invalid=2581, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:42,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5082 states. [2021-06-05 20:28:42,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5082 to 1710. [2021-06-05 20:28:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1709 states have (on average 2.5898186073727327) internal successors, (4426), 1709 states have internal predecessors, (4426), 0 states have call successors, (0), 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 20:28:42,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 4426 transitions. [2021-06-05 20:28:42,330 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 4426 transitions. Word has length 102 [2021-06-05 20:28:42,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:42,330 INFO L482 AbstractCegarLoop]: Abstraction has 1710 states and 4426 transitions. [2021-06-05 20:28:42,330 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 20:28:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 4426 transitions. [2021-06-05 20:28:42,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 20:28:42,333 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:42,333 INFO L554 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 20:28:42,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 20:28:42,333 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:42,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:42,334 INFO L82 PathProgramCache]: Analyzing trace with hash -419356931, now seen corresponding path program 10 times [2021-06-05 20:28:42,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:42,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715153241] [2021-06-05 20:28:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:43,394 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 20:28:43,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:43,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715153241] [2021-06-05 20:28:43,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715153241] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 20:28:43,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120796120] [2021-06-05 20:28:43,394 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 20:28:43,463 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 20:28:43,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 20:28:43,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-05 20:28:43,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 20:28:43,489 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 20:28:43,490 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 20:28:43,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 20:28:43,491 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 20:28:43,491 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-06-05 20:28:43,688 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-06-05 20:28:43,688 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 20:28:43,691 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 20:28:43,699 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 20:28:43,707 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 20:28:43,707 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:24 [2021-06-05 20:28:43,798 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-06-05 20:28:43,798 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 20:28:43,801 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 20:28:43,809 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 20:28:43,811 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 20:28:43,811 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:14 [2021-06-05 20:28:44,021 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 20:28:44,026 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 20:28:44,032 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 20:28:44,053 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 20:28:44,053 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2021-06-05 20:28:44,339 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 20:28:44,340 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 20:28:44,342 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 20:28:44,342 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 20:28:44,342 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2021-06-05 20:28:44,346 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 20:28:44,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120796120] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 20:28:44,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 20:28:44,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 18] total 41 [2021-06-05 20:28:44,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663211383] [2021-06-05 20:28:44,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-05 20:28:44,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:44,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-05 20:28:44,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1601, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 20:28:44,348 INFO L87 Difference]: Start difference. First operand 1710 states and 4426 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 20:28:45,816 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-06-05 20:28:45,988 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-06-05 20:28:46,227 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 20:28:46,393 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-06-05 20:28:46,562 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2021-06-05 20:28:46,724 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-06-05 20:28:46,921 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-06-05 20:28:47,109 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:28:47,256 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2021-06-05 20:28:47,407 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-06-05 20:28:47,585 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2021-06-05 20:28:47,891 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2021-06-05 20:28:48,040 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-05 20:28:48,344 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2021-06-05 20:28:48,523 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-06-05 20:28:48,682 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2021-06-05 20:28:49,036 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-05 20:28:49,627 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2021-06-05 20:28:50,041 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-06-05 20:28:51,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:51,976 INFO L93 Difference]: Finished difference Result 4087 states and 10790 transitions. [2021-06-05 20:28:51,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-05 20:28:51,976 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 20:28:51,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:51,976 INFO L225 Difference]: With dead ends: 4087 [2021-06-05 20:28:51,976 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:28:51,977 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2242 ImplicationChecksByTransitivity, 7717.8ms TimeCoverageRelationStatistics Valid=1967, Invalid=9375, Unknown=0, NotChecked=0, Total=11342 [2021-06-05 20:28:51,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:28:51,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:28:51,977 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 20:28:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:28:51,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2021-06-05 20:28:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:51,978 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:28:51,978 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 20:28:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:28:51,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:28:52,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 20:28:52,180 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:28:52,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:28:52 BasicIcfg [2021-06-05 20:28:52,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:28:52,182 INFO L168 Benchmark]: Toolchain (without parser) took 135293.55 ms. Allocated memory was 364.9 MB in the beginning and 889.2 MB in the end (delta: 524.3 MB). Free memory was 326.4 MB in the beginning and 444.1 MB in the end (delta: -117.7 MB). Peak memory consumption was 410.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:52,182 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 364.9 MB. Free memory was 345.2 MB in the beginning and 345.2 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:28:52,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.87 ms. Allocated memory is still 364.9 MB. Free memory was 326.2 MB in the beginning and 346.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:52,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.14 ms. Allocated memory is still 364.9 MB. Free memory was 346.9 MB in the beginning and 344.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:52,183 INFO L168 Benchmark]: Boogie Preprocessor took 33.39 ms. Allocated memory is still 364.9 MB. Free memory was 344.8 MB in the beginning and 343.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:52,183 INFO L168 Benchmark]: RCFGBuilder took 544.34 ms. Allocated memory is still 364.9 MB. Free memory was 343.7 MB in the beginning and 313.7 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:52,183 INFO L168 Benchmark]: TraceAbstraction took 134366.06 ms. Allocated memory was 364.9 MB in the beginning and 889.2 MB in the end (delta: 524.3 MB). Free memory was 312.6 MB in the beginning and 444.1 MB in the end (delta: -131.5 MB). Peak memory consumption was 394.6 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:52,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 364.9 MB. Free memory was 345.2 MB in the beginning and 345.2 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 298.87 ms. Allocated memory is still 364.9 MB. Free memory was 326.2 MB in the beginning and 346.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.14 ms. Allocated memory is still 364.9 MB. Free memory was 346.9 MB in the beginning and 344.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.39 ms. Allocated memory is still 364.9 MB. Free memory was 344.8 MB in the beginning and 343.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 544.34 ms. Allocated memory is still 364.9 MB. Free memory was 343.7 MB in the beginning and 313.7 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 134366.06 ms. Allocated memory was 364.9 MB in the beginning and 889.2 MB in the end (delta: 524.3 MB). Free memory was 312.6 MB in the beginning and 444.1 MB in the end (delta: -131.5 MB). Peak memory consumption was 394.6 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 159 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 134231.4ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 120.4ms, AutomataDifference: 116345.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 96.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4883 SDtfs, 21672 SDslu, 54953 SDs, 0 SdLazy, 29709 SolverSat, 912 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16945.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1242 GetRequests, 317 SyntacticMatches, 21 SemanticMatches, 904 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14920 ImplicationChecksByTransitivity, 105730.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3990occurred in iteration=5, InterpolantAutomatonStates: 653, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1398.5ms AutomataMinimizationTime, 15 MinimizatonAttempts, 61837 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 99.3ms SsaConstructionTime, 546.3ms SatisfiabilityAnalysisTime, 14663.0ms InterpolantComputationTime, 1809 NumberOfCodeBlocks, 1800 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1791 ConstructedInterpolants, 1 QuantifiedInterpolants, 26870 SizeOfPredicates, 63 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 114 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...