/usr/bin/java -Xmx8000000000 -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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/triangular-longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 12:33:57,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 12:33:57,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 12:33:57,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-10 12:33:57,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-10 12:33:57,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-10 12:33:57,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-10 12:33:57,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-10 12:33:57,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-10 12:33:57,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-10 12:33:57,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-10 12:33:57,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-10 12:33:57,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 12:33:57,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 12:33:57,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 12:33:57,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 12:33:57,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 12:33:57,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 12:33:57,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 12:33:57,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 12:33:57,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 12:33:57,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 12:33:57,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 12:33:57,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 12:33:57,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-10 12:33:57,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-10 12:33:57,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-10 12:33:57,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-10 12:33:57,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-10 12:33:57,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-10 12:33:57,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-10 12:33:57,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-10 12:33:57,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-10 12:33:57,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-10 12:33:57,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-10 12:33:57,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-10 12:33:57,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-10 12:33:57,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-10 12:33:57,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 12:33:57,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 12:33:57,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 12:33:57,973 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-07-10 12:33:58,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 12:33:58,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 12:33:58,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 12:33:58,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 12:33:58,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 12:33:58,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 12:33:58,005 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 12:33:58,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 12:33:58,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 12:33:58,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 12:33:58,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 12:33:58,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 12:33:58,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 12:33:58,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 12:33:58,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 12:33:58,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:33:58,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 12:33:58,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 12:33:58,008 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 12:33:58,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 12:33:58,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 12:33:58,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 12:33:58,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 12:33:58,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-10 12:33:58,297 INFO L275 PluginConnector]: CDTParser initialized [2021-07-10 12:33:58,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-longest-2.i [2021-07-10 12:33:58,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f97f570/53e360027e01448f9103e1fd4bc10962/FLAGf09e08968 [2021-07-10 12:33:58,737 INFO L306 CDTParser]: Found 1 translation units. [2021-07-10 12:33:58,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-2.i [2021-07-10 12:33:58,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f97f570/53e360027e01448f9103e1fd4bc10962/FLAGf09e08968 [2021-07-10 12:33:59,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f97f570/53e360027e01448f9103e1fd4bc10962 [2021-07-10 12:33:59,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 12:33:59,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-10 12:33:59,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-10 12:33:59,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-10 12:33:59,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-10 12:33:59,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c386a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59, skipping insertion in model container [2021-07-10 12:33:59,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-10 12:33:59,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-10 12:33:59,371 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-2.i[30964,30977] [2021-07-10 12:33:59,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 12:33:59,392 INFO L203 MainTranslator]: Completed pre-run [2021-07-10 12:33:59,439 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-2.i[30964,30977] [2021-07-10 12:33:59,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 12:33:59,464 INFO L208 MainTranslator]: Completed translation [2021-07-10 12:33:59,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59 WrapperNode [2021-07-10 12:33:59,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-10 12:33:59,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 12:33:59,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 12:33:59,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 12:33:59,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 12:33:59,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 12:33:59,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 12:33:59,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 12:33:59,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 12:33:59,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 12:33:59,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 12:33:59,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 12:33:59,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (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 [2021-07-10 12:33:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-07-10 12:33:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-07-10 12:33:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-07-10 12:33:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-07-10 12:33:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-10 12:33:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-10 12:33:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-10 12:33:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-10 12:33:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-10 12:33:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-10 12:33:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 12:33:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 12:33:59,563 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 12:33:59,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 12:33:59,891 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-10 12:33:59,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:33:59 BoogieIcfgContainer [2021-07-10 12:33:59,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 12:33:59,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 12:33:59,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 12:33:59,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 12:33:59,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 12:33:59" (1/3) ... [2021-07-10 12:33:59,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7c6455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:33:59, skipping insertion in model container [2021-07-10 12:33:59,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (2/3) ... [2021-07-10 12:33:59,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7c6455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:33:59, skipping insertion in model container [2021-07-10 12:33:59,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:33:59" (3/3) ... [2021-07-10 12:33:59,898 INFO L111 eAbstractionObserver]: Analyzing ICFG triangular-longest-2.i [2021-07-10 12:33:59,902 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 12:33:59,902 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 12:33:59,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 12:33:59,903 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 12:33:59,929 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,929 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,929 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,929 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,930 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,930 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,930 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,930 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,930 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,930 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,931 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,931 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,931 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,931 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,931 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,931 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,932 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,932 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,932 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,932 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,932 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,933 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,933 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,933 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,933 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,934 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,934 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,934 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,934 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,934 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,935 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,935 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,935 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,935 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,935 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,935 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,936 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,937 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,939 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,939 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,941 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,941 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,941 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,941 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,941 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,941 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,946 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,946 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,946 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,947 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,947 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,947 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:33:59,949 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-10 12:33:59,965 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 12:34:00,010 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 12:34:00,011 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 12:34:00,011 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 12:34:00,011 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 12:34:00,011 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 12:34:00,011 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 12:34:00,011 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 12:34:00,011 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 12:34:00,089 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:00,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:00,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1392949741, now seen corresponding path program 1 times [2021-07-10 12:34:00,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:00,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519927243] [2021-07-10 12:34:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:00,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:00,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519927243] [2021-07-10 12:34:00,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519927243] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:00,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:34:00,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 12:34:00,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394105899] [2021-07-10 12:34:00,269 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-10 12:34:00,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:00,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-10 12:34:00,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-10 12:34:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,280 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:00,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:00,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 12:34:00,287 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:00,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:00,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1283381069, now seen corresponding path program 1 times [2021-07-10 12:34:00,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:00,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327995717] [2021-07-10 12:34:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:00,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:00,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:00,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327995717] [2021-07-10 12:34:00,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327995717] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:00,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:34:00,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 12:34:00,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054056776] [2021-07-10 12:34:00,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 12:34:00,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:00,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 12:34:00,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 12:34:00,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,370 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:00,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:00,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:00,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 12:34:00,473 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:00,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:00,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1674089053, now seen corresponding path program 1 times [2021-07-10 12:34:00,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:00,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051146014] [2021-07-10 12:34:00,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:00,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:00,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051146014] [2021-07-10 12:34:00,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051146014] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:00,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828057254] [2021-07-10 12:34:00,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:00,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-10 12:34:00,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 12:34:00,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828057254] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:00,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-10 12:34:00,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-07-10 12:34:00,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450394856] [2021-07-10 12:34:00,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 12:34:00,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:00,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 12:34:00,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-10 12:34:00,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,926 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:00,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:00,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:01,180 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:01,180 INFO L82 PathProgramCache]: Analyzing trace with hash -877143426, now seen corresponding path program 1 times [2021-07-10 12:34:01,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:01,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896234148] [2021-07-10 12:34:01,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:01,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:01,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:01,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896234148] [2021-07-10 12:34:01,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896234148] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:01,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216277639] [2021-07-10 12:34:01,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-10 12:34:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:01,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-10 12:34:01,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:01,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216277639] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:01,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:01,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-10 12:34:01,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843061575] [2021-07-10 12:34:01,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 12:34:01,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:01,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 12:34:01,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-10 12:34:01,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,558 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:01,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:01,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:01,857 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:01,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:01,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1024281869, now seen corresponding path program 1 times [2021-07-10 12:34:01,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:01,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153330128] [2021-07-10 12:34:01,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:01,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:01,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153330128] [2021-07-10 12:34:01,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153330128] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:01,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19628715] [2021-07-10 12:34:01,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:01,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-10 12:34:01,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:02,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19628715] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:02,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:02,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-10 12:34:02,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903748744] [2021-07-10 12:34:02,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-10 12:34:02,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:02,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-10 12:34:02,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-10 12:34:02,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,096 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:02,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:02,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:02,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:02,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:02,441 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:02,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:02,441 INFO L82 PathProgramCache]: Analyzing trace with hash 2022143068, now seen corresponding path program 1 times [2021-07-10 12:34:02,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:02,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482231768] [2021-07-10 12:34:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:02,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:02,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482231768] [2021-07-10 12:34:02,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482231768] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:02,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114879437] [2021-07-10 12:34:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:02,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-10 12:34:02,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:02,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114879437] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:02,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:02,677 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-07-10 12:34:02,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280404763] [2021-07-10 12:34:02,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-10 12:34:02,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:02,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-10 12:34:02,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-07-10 12:34:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,678 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:02,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:03,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 12:34:03,018 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:03,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:03,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1045674363, now seen corresponding path program 2 times [2021-07-10 12:34:03,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:03,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294890351] [2021-07-10 12:34:03,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:03,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:03,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294890351] [2021-07-10 12:34:03,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294890351] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:03,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683268110] [2021-07-10 12:34:03,112 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:03,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:34:03,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:03,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-10 12:34:03,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:03,303 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:03,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683268110] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:03,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:03,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-07-10 12:34:03,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065041416] [2021-07-10 12:34:03,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-10 12:34:03,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:03,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-10 12:34:03,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-07-10 12:34:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,306 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:03,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:03,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:03,665 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:03,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:03,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1628649838, now seen corresponding path program 3 times [2021-07-10 12:34:03,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:03,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976194111] [2021-07-10 12:34:03,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:03,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:03,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976194111] [2021-07-10 12:34:03,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976194111] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:03,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381637276] [2021-07-10 12:34:03,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:03,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 12:34:03,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:03,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-10 12:34:03,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:04,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381637276] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:04,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:04,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-10 12:34:04,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375136495] [2021-07-10 12:34:04,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-10 12:34:04,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:04,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-10 12:34:04,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-07-10 12:34:04,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,006 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:04,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:04,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:04,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:04,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:04,381 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:04,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:04,381 INFO L82 PathProgramCache]: Analyzing trace with hash 773479703, now seen corresponding path program 4 times [2021-07-10 12:34:04,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:04,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273181661] [2021-07-10 12:34:04,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:04,534 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:04,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:04,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273181661] [2021-07-10 12:34:04,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273181661] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:04,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501452937] [2021-07-10 12:34:04,534 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:04,605 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 12:34:04,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:04,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-10 12:34:04,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:04,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501452937] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:04,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:04,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-07-10 12:34:04,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204896575] [2021-07-10 12:34:04,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 12:34:04,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:04,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 12:34:04,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-07-10 12:34:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,775 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:04,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:04,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:05,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-10 12:34:05,177 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:05,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:05,177 INFO L82 PathProgramCache]: Analyzing trace with hash 768328064, now seen corresponding path program 5 times [2021-07-10 12:34:05,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:05,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622428304] [2021-07-10 12:34:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:05,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:05,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622428304] [2021-07-10 12:34:05,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622428304] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:05,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768578454] [2021-07-10 12:34:05,331 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:05,460 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-10 12:34:05,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:05,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-10 12:34:05,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:05,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768578454] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:05,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:05,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-07-10 12:34:05,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571535453] [2021-07-10 12:34:05,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-10 12:34:05,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:05,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-10 12:34:05,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-07-10 12:34:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:05,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:05,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:06,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:06,105 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:06,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:06,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1809675945, now seen corresponding path program 6 times [2021-07-10 12:34:06,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:06,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061337959] [2021-07-10 12:34:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:06,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:06,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061337959] [2021-07-10 12:34:06,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061337959] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:06,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242128065] [2021-07-10 12:34:06,292 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:06,371 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-10 12:34:06,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:06,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-10 12:34:06,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:06,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242128065] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:06,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:06,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-07-10 12:34:06,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934434788] [2021-07-10 12:34:06,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-10 12:34:06,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:06,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-10 12:34:06,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2021-07-10 12:34:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,525 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:06,525 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:07,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:07,037 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:07,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1817080686, now seen corresponding path program 7 times [2021-07-10 12:34:07,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:07,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101575255] [2021-07-10 12:34:07,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:07,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:07,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101575255] [2021-07-10 12:34:07,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101575255] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:07,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063782530] [2021-07-10 12:34:07,245 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:07,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-10 12:34:07,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:07,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063782530] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:07,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:07,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-07-10 12:34:07,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449509386] [2021-07-10 12:34:07,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 12:34:07,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:07,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 12:34:07,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-07-10 12:34:07,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,486 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:07,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.571428571428571) internal successors, (117), 21 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:07,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:08,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-10 12:34:08,012 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:08,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:08,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1230377787, now seen corresponding path program 8 times [2021-07-10 12:34:08,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:08,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167610661] [2021-07-10 12:34:08,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:08,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:08,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167610661] [2021-07-10 12:34:08,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167610661] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:08,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449037098] [2021-07-10 12:34:08,234 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:08,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:34:08,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:08,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-10 12:34:08,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:08,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449037098] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:08,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:08,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-07-10 12:34:08,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475449945] [2021-07-10 12:34:08,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-10 12:34:08,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:08,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-10 12:34:08,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2021-07-10 12:34:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:08,527 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:08,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 5.375) internal successors, (129), 24 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:08,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:09,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-07-10 12:34:09,097 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:09,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:09,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1116019364, now seen corresponding path program 9 times [2021-07-10 12:34:09,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:09,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209786439] [2021-07-10 12:34:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:09,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:09,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209786439] [2021-07-10 12:34:09,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209786439] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:09,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130583463] [2021-07-10 12:34:09,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:09,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-07-10 12:34:09,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:09,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-10 12:34:09,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:09,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130583463] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:09,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:09,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-07-10 12:34:09,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032537257] [2021-07-10 12:34:09,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-10 12:34:09,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:09,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-10 12:34:09,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2021-07-10 12:34:09,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:09,671 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:09,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 5.346153846153846) internal successors, (139), 26 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:09,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:09,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:10,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-10 12:34:10,293 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:10,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:10,293 INFO L82 PathProgramCache]: Analyzing trace with hash 530887373, now seen corresponding path program 10 times [2021-07-10 12:34:10,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:10,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026887234] [2021-07-10 12:34:10,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:10,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:10,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026887234] [2021-07-10 12:34:10,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026887234] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:10,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224938458] [2021-07-10 12:34:10,602 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:10,673 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 12:34:10,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:10,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-10 12:34:10,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:10,889 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:10,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224938458] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:10,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:10,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-07-10 12:34:10,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225068798] [2021-07-10 12:34:10,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-10 12:34:10,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:10,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-10 12:34:10,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2021-07-10 12:34:10,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,892 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:10,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 5.321428571428571) internal successors, (149), 28 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:11,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:11,611 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:11,612 INFO L82 PathProgramCache]: Analyzing trace with hash 80145334, now seen corresponding path program 11 times [2021-07-10 12:34:11,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:11,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398499776] [2021-07-10 12:34:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:11,943 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 0 proven. 684 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:11,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:11,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398499776] [2021-07-10 12:34:11,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398499776] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:11,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872150557] [2021-07-10 12:34:11,944 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:12,022 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-07-10 12:34:12,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:12,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-10 12:34:12,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 0 proven. 684 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:12,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872150557] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:12,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:12,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 30 [2021-07-10 12:34:12,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587214273] [2021-07-10 12:34:12,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-10 12:34:12,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:12,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-10 12:34:12,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-07-10 12:34:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:12,259 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:12,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 5.3) internal successors, (159), 30 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:12,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:12,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:12,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:12,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:12,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:12,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:12,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:12,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-10 12:34:12,963 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:12,964 INFO L82 PathProgramCache]: Analyzing trace with hash -223750817, now seen corresponding path program 12 times [2021-07-10 12:34:12,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:12,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826565633] [2021-07-10 12:34:12,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:13,375 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 806 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:13,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:13,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826565633] [2021-07-10 12:34:13,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826565633] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:13,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631345110] [2021-07-10 12:34:13,376 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:13,467 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-10 12:34:13,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:13,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-10 12:34:13,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 806 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:13,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631345110] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:13,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:13,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 32 [2021-07-10 12:34:13,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351836641] [2021-07-10 12:34:13,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-10 12:34:13,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:13,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-10 12:34:13,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2021-07-10 12:34:13,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:13,694 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:13,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 5.28125) internal successors, (169), 32 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:13,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:13,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:13,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:13,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:13,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:13,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:14,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-10 12:34:14,460 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:14,460 INFO L82 PathProgramCache]: Analyzing trace with hash -541622328, now seen corresponding path program 13 times [2021-07-10 12:34:14,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:14,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850533636] [2021-07-10 12:34:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 0 proven. 938 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:14,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:14,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850533636] [2021-07-10 12:34:14,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850533636] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:14,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921718277] [2021-07-10 12:34:14,840 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:14,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 34 conjunts are in the unsatisfiable core [2021-07-10 12:34:14,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 0 proven. 938 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:15,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921718277] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:15,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:15,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 34 [2021-07-10 12:34:15,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675056187] [2021-07-10 12:34:15,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-10 12:34:15,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:15,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-10 12:34:15,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 12:34:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:15,186 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:15,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 5.264705882352941) internal successors, (179), 34 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:15,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:15,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:15,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:15,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:15,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:15,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:15,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:16,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-10 12:34:16,033 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:16,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:16,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1861879055, now seen corresponding path program 14 times [2021-07-10 12:34:16,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:16,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113339181] [2021-07-10 12:34:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:16,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:16,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113339181] [2021-07-10 12:34:16,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113339181] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:16,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982621880] [2021-07-10 12:34:16,480 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:16,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:34:16,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:16,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-10 12:34:16,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:16,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982621880] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:16,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:16,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 36 [2021-07-10 12:34:16,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25799329] [2021-07-10 12:34:16,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-07-10 12:34:16,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:16,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-07-10 12:34:16,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 12:34:16,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:16,832 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:16,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 5.25) internal successors, (189), 36 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:16,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:16,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:16,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:16,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:16,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:16,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:16,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:16,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:17,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:17,793 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:17,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:17,793 INFO L82 PathProgramCache]: Analyzing trace with hash 861361882, now seen corresponding path program 15 times [2021-07-10 12:34:17,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:17,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029972093] [2021-07-10 12:34:17,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:18,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 0 proven. 1232 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:18,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:18,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029972093] [2021-07-10 12:34:18,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029972093] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:18,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919995045] [2021-07-10 12:34:18,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:18,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-07-10 12:34:18,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:18,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-10 12:34:18,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 0 proven. 1232 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:18,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919995045] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:18,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:18,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-07-10 12:34:18,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509434303] [2021-07-10 12:34:18,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-10 12:34:18,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:18,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-10 12:34:18,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 12:34:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:18,641 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:18,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 5.324324324324325) internal successors, (197), 37 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:18,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:18,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:18,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:18,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:18,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:19,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:19,598 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:19,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1273388157, now seen corresponding path program 16 times [2021-07-10 12:34:19,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:19,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223384728] [2021-07-10 12:34:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 0 proven. 1394 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:20,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:20,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223384728] [2021-07-10 12:34:20,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223384728] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:20,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259219563] [2021-07-10 12:34:20,144 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:20,222 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 12:34:20,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:20,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-10 12:34:20,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 0 proven. 1394 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:20,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259219563] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:20,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:20,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 40 [2021-07-10 12:34:20,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078401182] [2021-07-10 12:34:20,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-10 12:34:20,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:20,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-10 12:34:20,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2021-07-10 12:34:20,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:20,515 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:20,515 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 5.225) internal successors, (209), 40 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:20,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:20,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:20,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:21,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-07-10 12:34:21,607 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:21,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:21,607 INFO L82 PathProgramCache]: Analyzing trace with hash -630787860, now seen corresponding path program 17 times [2021-07-10 12:34:21,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:21,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239072908] [2021-07-10 12:34:21,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 0 proven. 1566 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:22,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:22,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239072908] [2021-07-10 12:34:22,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239072908] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:22,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720969473] [2021-07-10 12:34:22,159 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:22,279 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-07-10 12:34:22,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:22,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-10 12:34:22,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 0 proven. 1566 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:22,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720969473] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:22,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:22,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-07-10 12:34:22,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226401149] [2021-07-10 12:34:22,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-10 12:34:22,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:22,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-10 12:34:22,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=1254, Unknown=0, NotChecked=0, Total=1640 [2021-07-10 12:34:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:22,608 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:22,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 5.2926829268292686) internal successors, (217), 41 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:22,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:22,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:22,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:22,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:23,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-10 12:34:23,731 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:23,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:23,732 INFO L82 PathProgramCache]: Analyzing trace with hash 537218837, now seen corresponding path program 18 times [2021-07-10 12:34:23,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:23,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479318313] [2021-07-10 12:34:23,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 0 proven. 1748 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:24,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:24,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479318313] [2021-07-10 12:34:24,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479318313] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:24,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109523544] [2021-07-10 12:34:24,363 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:24,527 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-07-10 12:34:24,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:24,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 44 conjunts are in the unsatisfiable core [2021-07-10 12:34:24,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:24,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 0 proven. 1748 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:24,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109523544] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:24,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:24,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-07-10 12:34:24,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463098442] [2021-07-10 12:34:24,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-10 12:34:24,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:24,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-10 12:34:24,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=1380, Unknown=0, NotChecked=0, Total=1806 [2021-07-10 12:34:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:24,811 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:24,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 5.27906976744186) internal successors, (227), 43 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:24,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-10 12:34:26,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:26,025 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:26,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:26,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1248251390, now seen corresponding path program 19 times [2021-07-10 12:34:26,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:26,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906906056] [2021-07-10 12:34:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:26,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 1865 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:26,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:26,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906906056] [2021-07-10 12:34:26,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906906056] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:26,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551592067] [2021-07-10 12:34:26,597 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:26,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-10 12:34:26,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 1942 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:27,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551592067] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:27,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-10 12:34:27,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [43] total 45 [2021-07-10 12:34:27,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746841759] [2021-07-10 12:34:27,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-10 12:34:27,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:27,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-10 12:34:27,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=1491, Unknown=0, NotChecked=0, Total=1980 [2021-07-10 12:34:27,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:27,037 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:27,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 43 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:27,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-10 12:34:27,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:29,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-07-10 12:34:29,645 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Guarantee of compatibility failed at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:142) at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:360) at java.base/java.util.TimSort.sort(TimSort.java:220) at java.base/java.util.Arrays.sort(Arrays.java:1515) at java.base/java.util.ArrayList.sort(ArrayList.java:1750) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:147) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-10 12:34:29,647 INFO L168 Benchmark]: Toolchain (without parser) took 30518.89 ms. Allocated memory was 206.6 MB in the beginning and 859.8 MB in the end (delta: 653.3 MB). Free memory was 170.8 MB in the beginning and 464.1 MB in the end (delta: -293.3 MB). Peak memory consumption was 361.6 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:29,647 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 206.6 MB. Free memory is still 188.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 12:34:29,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.19 ms. Allocated memory is still 206.6 MB. Free memory was 170.5 MB in the beginning and 182.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:29,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.75 ms. Allocated memory is still 206.6 MB. Free memory was 181.9 MB in the beginning and 180.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:29,647 INFO L168 Benchmark]: Boogie Preprocessor took 15.08 ms. Allocated memory is still 206.6 MB. Free memory was 180.2 MB in the beginning and 178.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:29,647 INFO L168 Benchmark]: RCFGBuilder took 386.44 ms. Allocated memory is still 206.6 MB. Free memory was 178.7 MB in the beginning and 157.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:29,647 INFO L168 Benchmark]: TraceAbstraction took 29753.22 ms. Allocated memory was 206.6 MB in the beginning and 859.8 MB in the end (delta: 653.3 MB). Free memory was 157.6 MB in the beginning and 464.1 MB in the end (delta: -306.4 MB). Peak memory consumption was 348.9 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:29,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 206.6 MB. Free memory is still 188.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 332.19 ms. Allocated memory is still 206.6 MB. Free memory was 170.5 MB in the beginning and 182.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.75 ms. Allocated memory is still 206.6 MB. Free memory was 181.9 MB in the beginning and 180.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.08 ms. Allocated memory is still 206.6 MB. Free memory was 180.2 MB in the beginning and 178.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 386.44 ms. Allocated memory is still 206.6 MB. Free memory was 178.7 MB in the beginning and 157.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29753.22 ms. Allocated memory was 206.6 MB in the beginning and 859.8 MB in the end (delta: 653.3 MB). Free memory was 157.6 MB in the beginning and 464.1 MB in the end (delta: -306.4 MB). Peak memory consumption was 348.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Guarantee of compatibility failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Guarantee of compatibility failed: de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...