/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-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 05:48:20,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 05:48:20,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 05:48:20,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 05:48:20,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 05:48:20,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 05:48:20,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 05:48:20,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 05:48:20,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 05:48:20,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 05:48:20,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 05:48:20,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 05:48:20,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 05:48:20,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 05:48:20,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 05:48:20,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 05:48:20,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 05:48:20,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 05:48:20,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 05:48:20,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 05:48:20,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 05:48:20,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 05:48:20,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 05:48:20,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 05:48:20,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 05:48:20,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 05:48:20,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 05:48:20,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 05:48:20,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 05:48:20,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 05:48:20,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 05:48:20,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 05:48:20,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 05:48:20,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 05:48:20,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 05:48:20,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 05:48:20,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 05:48:20,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 05:48:20,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 05:48:20,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 05:48:20,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 05:48:20,782 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-NewStatesSleep-NoLbe-Lockstep.epf [2021-07-14 05:48:20,809 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 05:48:20,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 05:48:20,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 05:48:20,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 05:48:20,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 05:48:20,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 05:48:20,811 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 05:48:20,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 05:48:20,812 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 05:48:20,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 05:48:20,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 05:48:20,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 05:48:20,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 05:48:20,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 05:48:20,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 05:48:20,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 05:48:20,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 05:48:20,815 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 05:48:20,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 05:48:21,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 05:48:21,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 05:48:21,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 05:48:21,092 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 05:48:21,093 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 05:48:21,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i [2021-07-14 05:48:21,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33eafda22/aa55827394ed48d19dc0471f1bfdc210/FLAG6cab2edbe [2021-07-14 05:48:21,511 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 05:48:21,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i [2021-07-14 05:48:21,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33eafda22/aa55827394ed48d19dc0471f1bfdc210/FLAG6cab2edbe [2021-07-14 05:48:21,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33eafda22/aa55827394ed48d19dc0471f1bfdc210 [2021-07-14 05:48:21,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 05:48:21,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 05:48:21,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 05:48:21,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 05:48:21,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 05:48:21,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 05:48:21" (1/1) ... [2021-07-14 05:48:21,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6b51f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:21, skipping insertion in model container [2021-07-14 05:48:21,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 05:48:21" (1/1) ... [2021-07-14 05:48:21,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 05:48:21,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 05:48:22,073 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i[29949,29962] [2021-07-14 05:48:22,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 05:48:22,131 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 05:48:22,165 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i[29949,29962] [2021-07-14 05:48:22,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 05:48:22,197 INFO L208 MainTranslator]: Completed translation [2021-07-14 05:48:22,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22 WrapperNode [2021-07-14 05:48:22,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 05:48:22,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 05:48:22,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 05:48:22,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 05:48:22,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 05:48:22,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 05:48:22,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 05:48:22,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 05:48:22,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (1/1) ... [2021-07-14 05:48:22,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 05:48:22,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 05:48:22,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 05:48:22,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 05:48:22,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (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 [2021-07-14 05:48:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-14 05:48:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 05:48:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-14 05:48:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 05:48:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-07-14 05:48:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-07-14 05:48:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 05:48:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 05:48:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 05:48:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 05:48:22,308 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 05:48:22,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 05:48:22,713 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-07-14 05:48:22,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 05:48:22 BoogieIcfgContainer [2021-07-14 05:48:22,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 05:48:22,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 05:48:22,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 05:48:22,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 05:48:22,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 05:48:21" (1/3) ... [2021-07-14 05:48:22,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a50b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 05:48:22, skipping insertion in model container [2021-07-14 05:48:22,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 05:48:22" (2/3) ... [2021-07-14 05:48:22,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a50b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 05:48:22, skipping insertion in model container [2021-07-14 05:48:22,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 05:48:22" (3/3) ... [2021-07-14 05:48:22,719 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_19-callback_racing.i [2021-07-14 05:48:22,722 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 05:48:22,723 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 05:48:22,723 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 05:48:22,723 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 05:48:22,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,744 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,745 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,745 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,745 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,745 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,745 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:22,753 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-07-14 05:48:22,769 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 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 [2021-07-14 05:48:22,802 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 05:48:22,802 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 05:48:22,802 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 05:48:22,802 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 05:48:22,802 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 05:48:22,802 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 05:48:22,803 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 05:48:22,803 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t_funThread1of1ForFork0======== [2021-07-14 05:48:22,846 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:22,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:22,850 INFO L82 PathProgramCache]: Analyzing trace with hash -404021776, now seen corresponding path program 1 times [2021-07-14 05:48:22,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:22,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409089857] [2021-07-14 05:48:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 05:48:23,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:23,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409089857] [2021-07-14 05:48:23,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409089857] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 05:48:23,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 05:48:23,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 05:48:23,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251381018] [2021-07-14 05:48:23,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-14 05:48:23,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:23,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-14 05:48:23,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-14 05:48:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,042 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:23,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:23,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 05:48:23,051 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:23,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:23,052 INFO L82 PathProgramCache]: Analyzing trace with hash 483481905, now seen corresponding path program 1 times [2021-07-14 05:48:23,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:23,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840275306] [2021-07-14 05:48:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:23,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:23,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:23,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840275306] [2021-07-14 05:48:23,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840275306] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:23,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167406846] [2021-07-14 05:48:23,136 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 [2021-07-14 05:48:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:23,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 05:48:23,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:23,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167406846] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:23,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:23,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-14 05:48:23,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485052697] [2021-07-14 05:48:23,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 05:48:23,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:23,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 05:48:23,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-14 05:48:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,430 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:23,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2021-07-14 05:48:23,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:23,679 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:23,679 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:23,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:23,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1398715241, now seen corresponding path program 1 times [2021-07-14 05:48:23,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:23,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023986550] [2021-07-14 05:48:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:23,756 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:23,756 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023986550] [2021-07-14 05:48:23,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023986550] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:23,756 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637079116] [2021-07-14 05:48:23,757 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 [2021-07-14 05:48:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:23,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 05:48:23,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:23,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:23,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637079116] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:23,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:23,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-14 05:48:23,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079460061] [2021-07-14 05:48:23,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 05:48:23,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:23,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 05:48:23,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-14 05:48:23,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,915 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:23,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:23,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:23,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:23,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:24,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:24,184 INFO L301 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE (1/2) [2021-07-14 05:48:24,185 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 05:48:24,195 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 05:48:24,195 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 05:48:24,195 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 05:48:24,195 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 05:48:24,195 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 05:48:24,195 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 05:48:24,195 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 05:48:24,196 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 05:48:24,204 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:24,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:24,205 INFO L82 PathProgramCache]: Analyzing trace with hash 410497038, now seen corresponding path program 1 times [2021-07-14 05:48:24,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:24,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807133292] [2021-07-14 05:48:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:24,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:24,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807133292] [2021-07-14 05:48:24,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807133292] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:24,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440425528] [2021-07-14 05:48:24,252 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 [2021-07-14 05:48:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:24,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 05:48:24,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:24,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440425528] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:24,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:24,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-14 05:48:24,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455215640] [2021-07-14 05:48:24,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 05:48:24,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:24,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 05:48:24,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-14 05:48:24,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,402 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:24,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:24,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:24,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:24,645 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:24,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:24,645 INFO L82 PathProgramCache]: Analyzing trace with hash 410497999, now seen corresponding path program 1 times [2021-07-14 05:48:24,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:24,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182100405] [2021-07-14 05:48:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 05:48:24,658 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 05:48:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 05:48:24,688 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 05:48:24,708 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-14 05:48:24,708 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-14 05:48:24,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 05:48:24,709 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2021-07-14 05:48:24,709 WARN L243 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-14 05:48:24,709 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-07-14 05:48:24,724 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,724 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,724 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,725 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,725 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,725 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,726 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,726 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,727 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,728 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,728 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,728 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,729 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,730 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,730 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,730 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,730 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,730 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,734 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,734 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,734 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,737 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:24,742 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 05:48:24,742 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 05:48:24,746 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 05:48:24,746 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 05:48:24,746 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 05:48:24,746 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 05:48:24,746 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 05:48:24,746 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 05:48:24,746 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 05:48:24,746 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t_funThread1of2ForFork0======== [2021-07-14 05:48:24,752 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:24,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:24,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1261264989, now seen corresponding path program 1 times [2021-07-14 05:48:24,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:24,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931791767] [2021-07-14 05:48:24,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:24,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 05:48:24,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:24,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931791767] [2021-07-14 05:48:24,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931791767] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 05:48:24,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 05:48:24,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 05:48:24,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088357974] [2021-07-14 05:48:24,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-14 05:48:24,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:24,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-14 05:48:24,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-14 05:48:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,770 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:24,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:24,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 05:48:24,773 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:24,773 INFO L82 PathProgramCache]: Analyzing trace with hash -2146198626, now seen corresponding path program 1 times [2021-07-14 05:48:24,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:24,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608130859] [2021-07-14 05:48:24,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:24,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:24,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:24,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608130859] [2021-07-14 05:48:24,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608130859] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:24,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624298624] [2021-07-14 05:48:24,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:48:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:24,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 05:48:24,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:24,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624298624] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:24,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:24,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-14 05:48:24,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491051019] [2021-07-14 05:48:24,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 05:48:24,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:24,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 05:48:24,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-14 05:48:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,974 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:24,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2021-07-14 05:48:24,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:24,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:25,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:25,201 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:25,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:25,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1230965290, now seen corresponding path program 1 times [2021-07-14 05:48:25,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:25,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092831315] [2021-07-14 05:48:25,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:25,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:25,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092831315] [2021-07-14 05:48:25,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092831315] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:25,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192073001] [2021-07-14 05:48:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:48:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:25,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 05:48:25,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:25,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:25,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192073001] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:25,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:25,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-14 05:48:25,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807855597] [2021-07-14 05:48:25,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 05:48:25,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:25,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 05:48:25,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-14 05:48:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:25,396 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:25,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:26,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-07-14 05:48:26,165 INFO L430 AbstractCegarLoop]: === Iteration 4 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:26,165 INFO L82 PathProgramCache]: Analyzing trace with hash 398464175, now seen corresponding path program 1 times [2021-07-14 05:48:26,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:26,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891497077] [2021-07-14 05:48:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-14 05:48:26,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:26,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891497077] [2021-07-14 05:48:26,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891497077] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 05:48:26,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 05:48:26,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 05:48:26,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831163267] [2021-07-14 05:48:26,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 05:48:26,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:26,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 05:48:26,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-14 05:48:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:26,282 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:26,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:26,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 05:48:26,581 INFO L430 AbstractCegarLoop]: === Iteration 5 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:26,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1444646026, now seen corresponding path program 1 times [2021-07-14 05:48:26,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:26,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004937472] [2021-07-14 05:48:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:26,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:26,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:26,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004937472] [2021-07-14 05:48:26,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004937472] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:26,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571704287] [2021-07-14 05:48:26,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:48:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:26,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 05:48:26,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:26,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571704287] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:26,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:26,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-14 05:48:26,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562629289] [2021-07-14 05:48:26,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 05:48:26,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:26,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 05:48:26,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-14 05:48:26,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:26,833 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:26,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:26,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:26,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:26,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:26,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:26,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:27,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 05:48:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 05:48:27,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:27,250 INFO L301 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE (1/3) [2021-07-14 05:48:27,250 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 05:48:27,253 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 05:48:27,254 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 05:48:27,254 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 05:48:27,254 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 05:48:27,254 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 05:48:27,254 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 05:48:27,254 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 05:48:27,254 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 05:48:27,257 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:27,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:27,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1181929176, now seen corresponding path program 1 times [2021-07-14 05:48:27,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:27,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767056062] [2021-07-14 05:48:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 05:48:27,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:27,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767056062] [2021-07-14 05:48:27,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767056062] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 05:48:27,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 05:48:27,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 05:48:27,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685462658] [2021-07-14 05:48:27,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 05:48:27,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:27,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 05:48:27,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-14 05:48:27,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:27,300 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:27,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:27,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:27,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-14 05:48:27,336 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:27,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:27,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1497332979, now seen corresponding path program 1 times [2021-07-14 05:48:27,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:27,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116532691] [2021-07-14 05:48:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:27,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:27,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116532691] [2021-07-14 05:48:27,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116532691] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:27,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841725145] [2021-07-14 05:48:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order 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 [2021-07-14 05:48:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:27,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 05:48:27,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:27,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841725145] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:27,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:27,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-14 05:48:27,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675783759] [2021-07-14 05:48:27,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 05:48:27,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:27,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 05:48:27,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-14 05:48:27,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:27,559 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:27,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:27,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:27,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:27,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:27,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-14 05:48:27,857 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:27,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1497333940, now seen corresponding path program 1 times [2021-07-14 05:48:27,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:27,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546106378] [2021-07-14 05:48:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 05:48:27,874 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 05:48:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 05:48:27,888 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 05:48:27,901 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-14 05:48:27,901 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-14 05:48:27,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-14 05:48:27,903 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/3) [2021-07-14 05:48:27,903 WARN L243 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-14 05:48:27,903 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-07-14 05:48:27,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,916 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,920 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,921 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,922 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,922 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,922 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,922 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,922 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,923 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,923 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,923 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,923 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,923 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,923 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,923 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:27,926 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 05:48:27,927 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-07-14 05:48:27,931 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 05:48:27,931 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 05:48:27,931 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 05:48:27,931 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 05:48:27,931 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 05:48:27,931 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 05:48:27,931 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 05:48:27,931 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 05:48:27,953 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:27,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:27,953 INFO L82 PathProgramCache]: Analyzing trace with hash 313269781, now seen corresponding path program 1 times [2021-07-14 05:48:27,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:27,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871826053] [2021-07-14 05:48:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 05:48:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-14 05:48:28,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:28,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871826053] [2021-07-14 05:48:28,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871826053] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 05:48:28,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 05:48:28,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 05:48:28,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317504629] [2021-07-14 05:48:28,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 05:48:28,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:28,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 05:48:28,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-14 05:48:28,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:28,012 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:28,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:28,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:28,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-14 05:48:28,062 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:28,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:28,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1423582352, now seen corresponding path program 1 times [2021-07-14 05:48:28,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:28,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891224476] [2021-07-14 05:48:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 05:48:28,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:28,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891224476] [2021-07-14 05:48:28,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891224476] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:28,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116877007] [2021-07-14 05:48:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:48:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:28,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 05:48:28,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 05:48:28,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116877007] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:28,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:28,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-14 05:48:28,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560334431] [2021-07-14 05:48:28,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 05:48:28,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:28,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 05:48:28,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-14 05:48:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:28,386 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:28,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:28,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:28,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:28,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-14 05:48:28,696 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash 497164539, now seen corresponding path program 1 times [2021-07-14 05:48:28,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:28,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77351726] [2021-07-14 05:48:28,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 05:48:28,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:28,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77351726] [2021-07-14 05:48:28,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77351726] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:28,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604446375] [2021-07-14 05:48:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:48:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:28,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 05:48:28,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 05:48:29,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604446375] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:29,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:29,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-14 05:48:29,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606887376] [2021-07-14 05:48:29,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 05:48:29,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:29,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 05:48:29,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-14 05:48:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:29,022 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:29,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:29,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:29,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:29,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:29,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:29,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:29,334 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-14 05:48:29,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:29,335 INFO L82 PathProgramCache]: Analyzing trace with hash 497165500, now seen corresponding path program 1 times [2021-07-14 05:48:29,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:29,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272733127] [2021-07-14 05:48:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 05:48:29,349 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 05:48:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 05:48:29,361 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 05:48:29,371 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-14 05:48:29,371 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-14 05:48:29,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-14 05:48:29,372 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/4) [2021-07-14 05:48:29,372 WARN L243 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-14 05:48:29,372 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,391 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,391 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,392 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,392 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,393 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,394 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 05:48:29,398 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 05:48:29,399 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 05:48:29,403 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 05:48:29,403 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 05:48:29,403 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 05:48:29,403 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 05:48:29,403 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 05:48:29,403 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 05:48:29,403 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 05:48:29,403 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t_funThread4of4ForFork0======== [2021-07-14 05:48:29,410 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:29,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1342238030, now seen corresponding path program 1 times [2021-07-14 05:48:29,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:29,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483318175] [2021-07-14 05:48:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-07-14 05:48:29,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:29,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483318175] [2021-07-14 05:48:29,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483318175] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 05:48:29,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 05:48:29,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 05:48:29,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97625251] [2021-07-14 05:48:29,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 05:48:29,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:29,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 05:48:29,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-14 05:48:29,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:29,464 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:29,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:29,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:29,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-14 05:48:29,503 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:29,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:29,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1429403592, now seen corresponding path program 1 times [2021-07-14 05:48:29,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:29,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085150046] [2021-07-14 05:48:29,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-14 05:48:29,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:29,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085150046] [2021-07-14 05:48:29,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085150046] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:29,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116695752] [2021-07-14 05:48:29,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:48:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:29,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 05:48:29,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:48:29,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116695752] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:29,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:29,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 16 [2021-07-14 05:48:29,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017760222] [2021-07-14 05:48:29,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 05:48:29,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:29,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 05:48:29,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-07-14 05:48:29,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:29,896 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:29,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 12.0625) internal successors, (193), 16 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:29,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:29,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 05:48:30,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:30,589 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:30,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:30,590 INFO L82 PathProgramCache]: Analyzing trace with hash -763437147, now seen corresponding path program 1 times [2021-07-14 05:48:30,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:30,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962728402] [2021-07-14 05:48:30,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 56 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 05:48:30,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:30,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962728402] [2021-07-14 05:48:30,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962728402] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:30,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191499095] [2021-07-14 05:48:30,642 INFO L95 rtionOrderModulation]: Keeping assertion order 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 [2021-07-14 05:48:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:30,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 05:48:30,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 56 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 05:48:30,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191499095] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:30,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:30,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-14 05:48:30,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992324913] [2021-07-14 05:48:30,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 05:48:30,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:30,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 05:48:30,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-14 05:48:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:30,863 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:30,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:48:30,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:30,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 05:48:30,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 05:48:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:31,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 05:48:31,185 INFO L430 AbstractCegarLoop]: === Iteration 4 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:48:31,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:48:31,185 INFO L82 PathProgramCache]: Analyzing trace with hash 608358826, now seen corresponding path program 1 times [2021-07-14 05:48:31,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:48:31,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718281382] [2021-07-14 05:48:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:48:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-14 05:48:31,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:48:31,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718281382] [2021-07-14 05:48:31,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718281382] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:31,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766598147] [2021-07-14 05:48:31,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:48:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:48:31,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 05:48:31,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:48:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-14 05:48:31,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766598147] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:48:31,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:48:31,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-14 05:48:31,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532897885] [2021-07-14 05:48:31,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 05:48:31,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:48:31,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 05:48:31,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-14 05:48:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:48:31,488 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:48:31,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 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) [2021-07-14 05:48:31,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:48:31,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 05:48:31,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 05:48:31,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:50:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:50:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-07-14 05:50:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 05:50:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 05:50:42,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-07-14 05:50:42,284 INFO L301 ceAbstractionStarter]: Result for error location t_funThread4of4ForFork0 was SAFE (1/5) [2021-07-14 05:50:42,284 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 05:50:42,296 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 05:50:42,296 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 05:50:42,296 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 05:50:42,296 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 05:50:42,297 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 05:50:42,297 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 05:50:42,297 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 05:50:42,297 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t_funThread2of4ForFork0======== [2021-07-14 05:50:42,308 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:50:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:50:42,308 INFO L82 PathProgramCache]: Analyzing trace with hash 703429987, now seen corresponding path program 1 times [2021-07-14 05:50:42,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:50:42,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409417731] [2021-07-14 05:50:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:50:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:50:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:50:42,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:50:42,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409417731] [2021-07-14 05:50:42,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409417731] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 05:50:42,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 05:50:42,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 05:50:42,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113705350] [2021-07-14 05:50:42,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 05:50:42,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:50:42,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 05:50:42,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-14 05:50:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:50:42,374 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:50:42,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:50:42,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:50:42,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:50:42,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-14 05:50:42,422 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:50:42,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:50:42,422 INFO L82 PathProgramCache]: Analyzing trace with hash 921148281, now seen corresponding path program 1 times [2021-07-14 05:50:42,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:50:42,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964843563] [2021-07-14 05:50:42,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:50:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:50:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:50:42,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:50:42,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964843563] [2021-07-14 05:50:42,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964843563] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:50:42,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306002643] [2021-07-14 05:50:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:50:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:50:42,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 05:50:42,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:50:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:50:42,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306002643] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:50:42,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:50:42,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-14 05:50:42,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913347747] [2021-07-14 05:50:42,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 05:50:42,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:50:42,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 05:50:42,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-07-14 05:50:42,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:50:42,710 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:50:42,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:50:42,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:50:42,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:50:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:50:51,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 05:50:51,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-07-14 05:50:51,461 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 05:50:51,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 05:50:51,462 INFO L82 PathProgramCache]: Analyzing trace with hash -499991079, now seen corresponding path program 1 times [2021-07-14 05:50:51,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 05:50:51,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931455925] [2021-07-14 05:50:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 05:50:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:50:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 05:50:51,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 05:50:51,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931455925] [2021-07-14 05:50:51,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931455925] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:50:51,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44805444] [2021-07-14 05:50:51,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 05:50:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 05:50:51,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 05:50:51,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 05:50:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 05:50:52,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44805444] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 05:50:52,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 05:50:52,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-07-14 05:50:52,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930065746] [2021-07-14 05:50:52,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 05:50:52,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 05:50:52,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 05:50:52,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-07-14 05:50:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 05:50:52,248 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 05:50:52,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 05:50:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 05:50:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 05:50:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.