/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 17:12:51,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 17:12:51,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 17:12:51,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 17:12:51,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 17:12:51,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 17:12:51,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 17:12:51,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 17:12:51,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 17:12:51,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 17:12:51,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 17:12:51,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 17:12:51,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 17:12:51,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 17:12:52,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 17:12:52,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 17:12:52,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 17:12:52,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 17:12:52,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 17:12:52,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 17:12:52,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 17:12:52,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 17:12:52,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 17:12:52,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 17:12:52,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-21 17:12:52,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-21 17:12:52,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-21 17:12:52,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-21 17:12:52,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-21 17:12:52,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-21 17:12:52,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 17:12:52,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 17:12:52,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 17:12:52,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 17:12:52,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 17:12:52,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 17:12:52,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 17:12:52,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 17:12:52,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 17:12:52,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 17:12:52,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 17:12:52,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-08-21 17:12:52,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 17:12:52,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 17:12:52,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 17:12:52,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 17:12:52,081 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 17:12:52,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 17:12:52,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 17:12:52,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 17:12:52,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 17:12:52,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 17:12:52,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 17:12:52,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 17:12:52,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 17:12:52,083 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 17:12:52,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 17:12:52,084 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 17:12:52,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 17:12:52,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 17:12:52,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 17:12:52,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 17:12:52,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 17:12:52,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:12:52,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 17:12:52,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 17:12:52,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 17:12:52,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 17:12:52,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 17:12:52,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 17:12:52,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 17:12:52,086 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 17:12:52,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 17:12:52,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 17:12:52,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 17:12:52,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 17:12:52,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 17:12:52,404 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 17:12:52,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-08-21 17:12:52,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a16b3cf4/614f606063c24b3191b2f017f47136da/FLAG53c837981 [2021-08-21 17:12:53,081 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 17:12:53,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-08-21 17:12:53,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a16b3cf4/614f606063c24b3191b2f017f47136da/FLAG53c837981 [2021-08-21 17:12:53,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a16b3cf4/614f606063c24b3191b2f017f47136da [2021-08-21 17:12:53,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 17:12:53,489 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 17:12:53,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 17:12:53,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 17:12:53,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 17:12:53,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:12:53" (1/1) ... [2021-08-21 17:12:53,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fabbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:53, skipping insertion in model container [2021-08-21 17:12:53,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:12:53" (1/1) ... [2021-08-21 17:12:53,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 17:12:53,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 17:12:54,157 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-08-21 17:12:54,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:12:54,207 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 17:12:54,253 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-08-21 17:12:54,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:12:54,373 INFO L208 MainTranslator]: Completed translation [2021-08-21 17:12:54,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54 WrapperNode [2021-08-21 17:12:54,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 17:12:54,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 17:12:54,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 17:12:54,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 17:12:54,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 17:12:54,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 17:12:54,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 17:12:54,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 17:12:54,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 17:12:54,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 17:12:54,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 17:12:54,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 17:12:54,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (1/1) ... [2021-08-21 17:12:54,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:12:54,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 17:12:54,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 17:12:54,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 17:12:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 17:12:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-21 17:12:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-21 17:12:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-21 17:12:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 17:12:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 17:12:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 17:12:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-21 17:12:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-21 17:12:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 17:12:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 17:12:54,555 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 17:12:55,152 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 17:12:55,152 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-21 17:12:55,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:12:55 BoogieIcfgContainer [2021-08-21 17:12:55,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 17:12:55,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 17:12:55,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 17:12:55,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 17:12:55,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:12:53" (1/3) ... [2021-08-21 17:12:55,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460d5a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:12:55, skipping insertion in model container [2021-08-21 17:12:55,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:12:54" (2/3) ... [2021-08-21 17:12:55,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460d5a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:12:55, skipping insertion in model container [2021-08-21 17:12:55,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:12:55" (3/3) ... [2021-08-21 17:12:55,162 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2021-08-21 17:12:55,165 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 17:12:55,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 17:12:55,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-21 17:12:55,166 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 17:12:55,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,187 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,187 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,187 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,187 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,189 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,189 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,189 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,190 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,190 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,190 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,190 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,190 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,190 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,194 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,194 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,194 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,195 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,214 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,214 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,214 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:12:55,226 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-21 17:12:55,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 17:12:55,267 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 17:12:55,267 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-21 17:12:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 269 states have (on average 1.1933085501858736) internal successors, (321), 303 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:55,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-21 17:12:55,364 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:12:55,364 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:12:55,365 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-21 17:12:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:12:55,369 INFO L82 PathProgramCache]: Analyzing trace with hash -437469631, now seen corresponding path program 1 times [2021-08-21 17:12:55,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:12:55,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714682780] [2021-08-21 17:12:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:12:55,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:12:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:12:55,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:12:55,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:12:55,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714682780] [2021-08-21 17:12:55,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714682780] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:12:55,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:12:55,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 17:12:55,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951973849] [2021-08-21 17:12:55,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 17:12:55,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:12:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 17:12:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-21 17:12:55,775 INFO L87 Difference]: Start difference. First operand has 304 states, 269 states have (on average 1.1933085501858736) internal successors, (321), 303 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:55,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:12:55,876 INFO L93 Difference]: Finished difference Result 284 states and 283 transitions. [2021-08-21 17:12:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 17:12:55,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-08-21 17:12:55,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:12:55,886 INFO L225 Difference]: With dead ends: 284 [2021-08-21 17:12:55,886 INFO L226 Difference]: Without dead ends: 215 [2021-08-21 17:12:55,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:12:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-08-21 17:12:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-08-21 17:12:55,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 197 states have (on average 1.0862944162436547) internal successors, (214), 214 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:55,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 214 transitions. [2021-08-21 17:12:55,927 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 214 transitions. Word has length 27 [2021-08-21 17:12:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:12:55,927 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 214 transitions. [2021-08-21 17:12:55,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 214 transitions. [2021-08-21 17:12:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-21 17:12:55,928 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:12:55,929 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:12:55,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 17:12:55,929 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-21 17:12:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:12:55,930 INFO L82 PathProgramCache]: Analyzing trace with hash -589848071, now seen corresponding path program 1 times [2021-08-21 17:12:55,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:12:55,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852933204] [2021-08-21 17:12:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:12:55,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:12:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:12:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:12:56,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:12:56,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852933204] [2021-08-21 17:12:56,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852933204] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:12:56,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:12:56,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 17:12:56,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207787331] [2021-08-21 17:12:56,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 17:12:56,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:12:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 17:12:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-21 17:12:56,085 INFO L87 Difference]: Start difference. First operand 215 states and 214 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:12:56,149 INFO L93 Difference]: Finished difference Result 213 states and 212 transitions. [2021-08-21 17:12:56,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 17:12:56,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-08-21 17:12:56,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:12:56,158 INFO L225 Difference]: With dead ends: 213 [2021-08-21 17:12:56,158 INFO L226 Difference]: Without dead ends: 207 [2021-08-21 17:12:56,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:12:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-08-21 17:12:56,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-08-21 17:12:56,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 190 states have (on average 1.0842105263157895) internal successors, (206), 206 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 206 transitions. [2021-08-21 17:12:56,183 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 206 transitions. Word has length 35 [2021-08-21 17:12:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:12:56,183 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 206 transitions. [2021-08-21 17:12:56,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 206 transitions. [2021-08-21 17:12:56,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-21 17:12:56,185 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:12:56,185 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:12:56,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 17:12:56,185 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-21 17:12:56,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:12:56,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1940067079, now seen corresponding path program 1 times [2021-08-21 17:12:56,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:12:56,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914112710] [2021-08-21 17:12:56,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:12:56,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:12:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:12:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:12:56,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:12:56,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914112710] [2021-08-21 17:12:56,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914112710] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:12:56,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:12:56,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 17:12:56,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780435102] [2021-08-21 17:12:56,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 17:12:56,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:12:56,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 17:12:56,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-21 17:12:56,327 INFO L87 Difference]: Start difference. First operand 207 states and 206 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:12:56,403 INFO L93 Difference]: Finished difference Result 175 states and 174 transitions. [2021-08-21 17:12:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 17:12:56,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-08-21 17:12:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:12:56,405 INFO L225 Difference]: With dead ends: 175 [2021-08-21 17:12:56,405 INFO L226 Difference]: Without dead ends: 65 [2021-08-21 17:12:56,406 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 60.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:12:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-08-21 17:12:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-08-21 17:12:56,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.0) internal successors, (64), 64 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 64 transitions. [2021-08-21 17:12:56,412 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 64 transitions. Word has length 42 [2021-08-21 17:12:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:12:56,412 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 64 transitions. [2021-08-21 17:12:56,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 64 transitions. [2021-08-21 17:12:56,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-21 17:12:56,416 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:12:56,416 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:12:56,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 17:12:56,417 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-21 17:12:56,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:12:56,419 INFO L82 PathProgramCache]: Analyzing trace with hash 643455659, now seen corresponding path program 1 times [2021-08-21 17:12:56,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:12:56,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825634309] [2021-08-21 17:12:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:12:56,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:12:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:12:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:12:56,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:12:56,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825634309] [2021-08-21 17:12:56,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825634309] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:12:56,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:12:56,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 17:12:56,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155567758] [2021-08-21 17:12:56,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 17:12:56,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:12:56,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 17:12:56,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-21 17:12:56,554 INFO L87 Difference]: Start difference. First operand 65 states and 64 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:12:56,592 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2021-08-21 17:12:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 17:12:56,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-08-21 17:12:56,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:12:56,595 INFO L225 Difference]: With dead ends: 63 [2021-08-21 17:12:56,595 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 17:12:56,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:12:56,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 17:12:56,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 17:12:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 17:12:56,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2021-08-21 17:12:56,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:12:56,597 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 17:12:56,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:12:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 17:12:56,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 17:12:56,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:12:56,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:12:56,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:12:56,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:12:56,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 17:12:56,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:12:56,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 17:12:56,610 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 17:12:56,610 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 17:12:56,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:12:56 BasicIcfg [2021-08-21 17:12:56,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 17:12:56,615 INFO L168 Benchmark]: Toolchain (without parser) took 3124.68 ms. Allocated memory was 187.7 MB in the beginning and 239.1 MB in the end (delta: 51.4 MB). Free memory was 149.3 MB in the beginning and 180.7 MB in the end (delta: -31.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 8.0 GB. [2021-08-21 17:12:56,615 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 187.7 MB. Free memory is still 169.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:12:56,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.94 ms. Allocated memory is still 187.7 MB. Free memory was 149.1 MB in the beginning and 126.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 8.0 GB. [2021-08-21 17:12:56,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.02 ms. Allocated memory is still 187.7 MB. Free memory was 126.2 MB in the beginning and 123.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:12:56,620 INFO L168 Benchmark]: Boogie Preprocessor took 32.74 ms. Allocated memory is still 187.7 MB. Free memory was 123.0 MB in the beginning and 120.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:12:56,621 INFO L168 Benchmark]: RCFGBuilder took 677.18 ms. Allocated memory is still 187.7 MB. Free memory was 120.9 MB in the beginning and 82.2 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. [2021-08-21 17:12:56,621 INFO L168 Benchmark]: TraceAbstraction took 1456.05 ms. Allocated memory was 187.7 MB in the beginning and 239.1 MB in the end (delta: 51.4 MB). Free memory was 81.6 MB in the beginning and 180.7 MB in the end (delta: -99.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:12:56,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 187.7 MB. Free memory is still 169.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 883.94 ms. Allocated memory is still 187.7 MB. Free memory was 149.1 MB in the beginning and 126.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 67.02 ms. Allocated memory is still 187.7 MB. Free memory was 126.2 MB in the beginning and 123.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.74 ms. Allocated memory is still 187.7 MB. Free memory was 123.0 MB in the beginning and 120.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 677.18 ms. Allocated memory is still 187.7 MB. Free memory was 120.9 MB in the beginning and 82.2 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1456.05 ms. Allocated memory was 187.7 MB in the beginning and 239.1 MB in the end (delta: 51.4 MB). Free memory was 81.6 MB in the beginning and 180.7 MB in the end (delta: -99.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 263, positive: 225, positive conditional: 225, positive unconditional: 0, negative: 38, negative conditional: 38, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 225, positive: 225, positive conditional: 0, positive unconditional: 225, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 225, positive: 225, positive conditional: 0, positive unconditional: 225, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 225, positive: 225, positive conditional: 0, positive unconditional: 225, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 225, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 225, unknown conditional: 0, unknown unconditional: 225] , Statistics on independence cache: Total cache size (in pairs): 225, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 38 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1346.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 13.0ms, AutomataDifference: 333.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 88.7ms, PartialOrderReductionTime: 73.1ms, HoareTripleCheckerStatistics: 286 SDtfs, 250 SDslu, 557 SDs, 0 SdLazy, 65 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 169.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 59.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.7ms SsaConstructionTime, 103.6ms SatisfiabilityAnalysisTime, 464.4ms InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 17:12:56,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...