/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/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 17:11:46,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 17:11:46,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 17:11:46,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 17:11:46,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 17:11:46,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 17:11:46,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 17:11:46,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 17:11:46,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 17:11:46,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 17:11:46,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 17:11:46,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 17:11:46,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 17:11:46,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 17:11:46,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 17:11:46,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 17:11:46,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 17:11:46,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 17:11:46,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 17:11:46,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 17:11:46,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 17:11:46,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 17:11:46,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 17:11:46,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 17:11:46,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-21 17:11:46,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 17:11:46,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 17:11:46,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 17:11:46,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 17:11:46,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 17:11:46,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 17:11:46,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 17:11:46,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 17:11:46,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 17:11:46,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 17:11:46,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 17:11:46,911 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 17:11:46,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 17:11:46,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 17:11:46,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 17:11:46,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 17:11:46,953 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 17:11:46,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 17:11:46,953 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 17:11:46,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 17:11:46,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 17:11:46,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 17:11:46,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 17:11:46,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 17:11:46,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 17:11:46,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 17:11:46,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 17:11:46,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 17:11:46,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 17:11:46,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 17:11:46,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 17:11:46,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 17:11:46,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 17:11:46,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:46,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 17:11:46,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 17:11:46,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 17:11:46,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 17:11:46,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 17:11:46,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 17:11:46,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 17:11:46,959 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 17:11:46,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 17:11:47,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 17:11:47,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 17:11:47,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 17:11:47,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 17:11:47,362 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 17:11:47,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-08-21 17:11:47,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f8ede3b/313e6bb65f1e4ef6831ea97e4cb9249e/FLAG9a2f5f433 [2021-08-21 17:11:47,926 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 17:11:47,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-08-21 17:11:47,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f8ede3b/313e6bb65f1e4ef6831ea97e4cb9249e/FLAG9a2f5f433 [2021-08-21 17:11:48,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f8ede3b/313e6bb65f1e4ef6831ea97e4cb9249e [2021-08-21 17:11:48,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 17:11:48,271 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 17:11:48,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:48,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 17:11:48,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 17:11:48,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32547da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48, skipping insertion in model container [2021-08-21 17:11:48,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 17:11:48,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 17:11:48,441 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i[949,962] [2021-08-21 17:11:48,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:48,622 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 17:11:48,632 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i[949,962] [2021-08-21 17:11:48,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:48,695 INFO L208 MainTranslator]: Completed translation [2021-08-21 17:11:48,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48 WrapperNode [2021-08-21 17:11:48,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:48,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:48,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 17:11:48,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 17:11:48,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:48,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 17:11:48,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 17:11:48,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 17:11:48,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 17:11:48,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 17:11:48,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 17:11:48,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 17:11:48,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (1/1) ... [2021-08-21 17:11:48,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:48,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 17:11:48,775 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 17:11:48,804 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 17:11:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 17:11:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 17:11:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 17:11:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 17:11:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 17:11:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 17:11:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 17:11:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 17:11:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 17:11:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 17:11:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 17:11:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 17:11:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 17:11:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 17:11:48,824 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 17:11:49,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 17:11:49,260 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 17:11:49,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:49 BoogieIcfgContainer [2021-08-21 17:11:49,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 17:11:49,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 17:11:49,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 17:11:49,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 17:11:49,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:11:48" (1/3) ... [2021-08-21 17:11:49,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e8bb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:49, skipping insertion in model container [2021-08-21 17:11:49,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:48" (2/3) ... [2021-08-21 17:11:49,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e8bb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:49, skipping insertion in model container [2021-08-21 17:11:49,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:49" (3/3) ... [2021-08-21 17:11:49,271 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2021-08-21 17:11:49,276 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 17:11:49,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 17:11:49,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 17:11:49,277 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 17:11:49,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,317 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,317 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,318 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,318 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,319 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,319 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,324 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,324 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,329 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,330 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,334 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,335 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,345 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,346 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:49,350 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 17:11:49,396 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 17:11:49,406 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 17:11:49,406 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-21 17:11:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 5557 states, 4766 states have (on average 2.0052454888795634) internal successors, (9557), 5556 states have internal predecessors, (9557), 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 17:11:50,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-21 17:11:50,061 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:50,061 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] [2021-08-21 17:11:50,062 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:50,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:50,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1589386462, now seen corresponding path program 1 times [2021-08-21 17:11:50,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:50,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060687323] [2021-08-21 17:11:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:50,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:50,489 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 17:11:50,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:50,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060687323] [2021-08-21 17:11:50,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060687323] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:50,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:50,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 17:11:50,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035148037] [2021-08-21 17:11:50,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 17:11:50,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:50,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 17:11:50,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 17:11:50,522 INFO L87 Difference]: Start difference. First operand has 5557 states, 4766 states have (on average 2.0052454888795634) internal successors, (9557), 5556 states have internal predecessors, (9557), 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 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:50,802 INFO L93 Difference]: Finished difference Result 6677 states and 11769 transitions. [2021-08-21 17:11:50,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:50,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-08-21 17:11:50,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:50,837 INFO L225 Difference]: With dead ends: 6677 [2021-08-21 17:11:50,837 INFO L226 Difference]: Without dead ends: 2810 [2021-08-21 17:11:50,838 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:50,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2021-08-21 17:11:50,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2810. [2021-08-21 17:11:50,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2767 states have (on average 2.1785327069027827) internal successors, (6028), 2809 states have internal predecessors, (6028), 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 17:11:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 6028 transitions. [2021-08-21 17:11:50,978 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 6028 transitions. Word has length 47 [2021-08-21 17:11:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:50,979 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 6028 transitions. [2021-08-21 17:11:50,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:50,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 6028 transitions. [2021-08-21 17:11:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-21 17:11:50,983 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:50,984 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] [2021-08-21 17:11:50,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 17:11:50,984 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:50,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:50,985 INFO L82 PathProgramCache]: Analyzing trace with hash 998160607, now seen corresponding path program 1 times [2021-08-21 17:11:50,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:50,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150038754] [2021-08-21 17:11:50,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:50,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:51,209 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 17:11:51,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:51,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150038754] [2021-08-21 17:11:51,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150038754] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:51,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:51,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:51,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771453606] [2021-08-21 17:11:51,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:51,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:51,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:51,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:51,213 INFO L87 Difference]: Start difference. First operand 2810 states and 6028 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:51,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:51,602 INFO L93 Difference]: Finished difference Result 3992 states and 9483 transitions. [2021-08-21 17:11:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-21 17:11:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-08-21 17:11:51,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:51,614 INFO L225 Difference]: With dead ends: 3992 [2021-08-21 17:11:51,614 INFO L226 Difference]: Without dead ends: 1972 [2021-08-21 17:11:51,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 265.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2021-08-21 17:11:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1638. [2021-08-21 17:11:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1595 states have (on average 2.2420062695924763) internal successors, (3576), 1637 states have internal predecessors, (3576), 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 17:11:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 3576 transitions. [2021-08-21 17:11:51,667 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 3576 transitions. Word has length 49 [2021-08-21 17:11:51,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:51,668 INFO L470 AbstractCegarLoop]: Abstraction has 1638 states and 3576 transitions. [2021-08-21 17:11:51,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:51,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 3576 transitions. [2021-08-21 17:11:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-21 17:11:51,671 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:51,672 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] [2021-08-21 17:11:51,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 17:11:51,672 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:51,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1632188064, now seen corresponding path program 1 times [2021-08-21 17:11:51,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:51,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759487160] [2021-08-21 17:11:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:51,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:51,795 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 17:11:51,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:51,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759487160] [2021-08-21 17:11:51,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759487160] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:51,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:51,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:51,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923069551] [2021-08-21 17:11:51,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:51,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:51,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:51,797 INFO L87 Difference]: Start difference. First operand 1638 states and 3576 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 17:11:51,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:51,989 INFO L93 Difference]: Finished difference Result 2218 states and 5368 transitions. [2021-08-21 17:11:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-21 17:11:51,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-08-21 17:11:51,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:51,999 INFO L225 Difference]: With dead ends: 2218 [2021-08-21 17:11:52,000 INFO L226 Difference]: Without dead ends: 1686 [2021-08-21 17:11:52,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 150.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:52,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-08-21 17:11:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1368. [2021-08-21 17:11:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1335 states have (on average 2.1992509363295882) internal successors, (2936), 1367 states have internal predecessors, (2936), 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 17:11:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2936 transitions. [2021-08-21 17:11:52,037 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2936 transitions. Word has length 51 [2021-08-21 17:11:52,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:52,039 INFO L470 AbstractCegarLoop]: Abstraction has 1368 states and 2936 transitions. [2021-08-21 17:11:52,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 17:11:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2936 transitions. [2021-08-21 17:11:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-21 17:11:52,042 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:52,042 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] [2021-08-21 17:11:52,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 17:11:52,042 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:52,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:52,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1946212288, now seen corresponding path program 1 times [2021-08-21 17:11:52,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:52,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464757067] [2021-08-21 17:11:52,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:52,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:52,215 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 17:11:52,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:52,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464757067] [2021-08-21 17:11:52,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464757067] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:52,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:52,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 17:11:52,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400306626] [2021-08-21 17:11:52,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 17:11:52,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:52,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 17:11:52,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 17:11:52,218 INFO L87 Difference]: Start difference. First operand 1368 states and 2936 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 17:11:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:52,333 INFO L93 Difference]: Finished difference Result 2384 states and 5663 transitions. [2021-08-21 17:11:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-08-21 17:11:52,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:52,342 INFO L225 Difference]: With dead ends: 2384 [2021-08-21 17:11:52,342 INFO L226 Difference]: Without dead ends: 1600 [2021-08-21 17:11:52,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 101.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:52,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2021-08-21 17:11:52,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1200. [2021-08-21 17:11:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 1175 states have (on average 2.1293617021276594) internal successors, (2502), 1199 states have internal predecessors, (2502), 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 17:11:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2502 transitions. [2021-08-21 17:11:52,404 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2502 transitions. Word has length 52 [2021-08-21 17:11:52,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:52,405 INFO L470 AbstractCegarLoop]: Abstraction has 1200 states and 2502 transitions. [2021-08-21 17:11:52,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 17:11:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2502 transitions. [2021-08-21 17:11:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-21 17:11:52,408 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:52,408 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] [2021-08-21 17:11:52,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 17:11:52,408 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:52,409 INFO L82 PathProgramCache]: Analyzing trace with hash 894659617, now seen corresponding path program 1 times [2021-08-21 17:11:52,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:52,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706853456] [2021-08-21 17:11:52,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:52,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:52,548 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 17:11:52,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:52,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706853456] [2021-08-21 17:11:52,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706853456] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:52,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:52,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 17:11:52,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016001748] [2021-08-21 17:11:52,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 17:11:52,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:52,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 17:11:52,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 17:11:52,551 INFO L87 Difference]: Start difference. First operand 1200 states and 2502 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2021-08-21 17:11:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:52,657 INFO L93 Difference]: Finished difference Result 1389 states and 2671 transitions. [2021-08-21 17:11:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:52,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) Word has length 53 [2021-08-21 17:11:52,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:52,665 INFO L225 Difference]: With dead ends: 1389 [2021-08-21 17:11:52,665 INFO L226 Difference]: Without dead ends: 973 [2021-08-21 17:11:52,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 80.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:52,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2021-08-21 17:11:52,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 973. [2021-08-21 17:11:52,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 948 states have (on average 2.1645569620253164) internal successors, (2052), 972 states have internal predecessors, (2052), 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 17:11:52,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 2052 transitions. [2021-08-21 17:11:52,689 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 2052 transitions. Word has length 53 [2021-08-21 17:11:52,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:52,689 INFO L470 AbstractCegarLoop]: Abstraction has 973 states and 2052 transitions. [2021-08-21 17:11:52,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2021-08-21 17:11:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 2052 transitions. [2021-08-21 17:11:52,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-21 17:11:52,692 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:52,692 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] [2021-08-21 17:11:52,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 17:11:52,692 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:52,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:52,693 INFO L82 PathProgramCache]: Analyzing trace with hash -90653660, now seen corresponding path program 1 times [2021-08-21 17:11:52,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:52,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921290758] [2021-08-21 17:11:52,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:52,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:52,785 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 17:11:52,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:52,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921290758] [2021-08-21 17:11:52,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921290758] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:52,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:52,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:52,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565905145] [2021-08-21 17:11:52,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:52,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:52,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:52,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:52,792 INFO L87 Difference]: Start difference. First operand 973 states and 2052 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 17:11:52,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:52,905 INFO L93 Difference]: Finished difference Result 785 states and 1437 transitions. [2021-08-21 17:11:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:52,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-08-21 17:11:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:52,909 INFO L225 Difference]: With dead ends: 785 [2021-08-21 17:11:52,909 INFO L226 Difference]: Without dead ends: 489 [2021-08-21 17:11:52,909 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 80.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-21 17:11:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-08-21 17:11:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2021-08-21 17:11:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 468 states have (on average 2.108974358974359) internal successors, (987), 488 states have internal predecessors, (987), 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 17:11:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 987 transitions. [2021-08-21 17:11:52,920 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 987 transitions. Word has length 55 [2021-08-21 17:11:52,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:52,920 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 987 transitions. [2021-08-21 17:11:52,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 17:11:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 987 transitions. [2021-08-21 17:11:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-21 17:11:52,921 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:52,921 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] [2021-08-21 17:11:52,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 17:11:52,922 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:52,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:52,922 INFO L82 PathProgramCache]: Analyzing trace with hash -816511835, now seen corresponding path program 1 times [2021-08-21 17:11:52,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:52,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528395570] [2021-08-21 17:11:52,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:52,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:53,052 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 17:11:53,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:53,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528395570] [2021-08-21 17:11:53,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528395570] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:53,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:53,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 17:11:53,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530302239] [2021-08-21 17:11:53,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 17:11:53,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:53,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 17:11:53,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:11:53,055 INFO L87 Difference]: Start difference. First operand 489 states and 987 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 17:11:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:53,135 INFO L93 Difference]: Finished difference Result 180 states and 241 transitions. [2021-08-21 17:11:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 17:11:53,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2021-08-21 17:11:53,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:53,136 INFO L225 Difference]: With dead ends: 180 [2021-08-21 17:11:53,136 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 17:11:53,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 82.3ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-21 17:11:53,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 17:11:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 17:11:53,137 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 17:11:53,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 17:11:53,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-08-21 17:11:53,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:53,137 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 17:11:53,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 17:11:53,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 17:11:53,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 17:11:53,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:11:53,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 17:11:53,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 17:11:53,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 17:11:53,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 17:11:53,144 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 17:11:53,144 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 17:11:53,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:11:53 BasicIcfg [2021-08-21 17:11:53,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 17:11:53,147 INFO L168 Benchmark]: Toolchain (without parser) took 4876.01 ms. Allocated memory was 194.0 MB in the beginning and 252.7 MB in the end (delta: 58.7 MB). Free memory was 157.4 MB in the beginning and 215.0 MB in the end (delta: -57.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:53,148 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 194.0 MB. Free memory is still 175.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:11:53,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.21 ms. Allocated memory is still 194.0 MB. Free memory was 157.0 MB in the beginning and 167.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:53,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.89 ms. Allocated memory is still 194.0 MB. Free memory was 167.6 MB in the beginning and 165.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:53,149 INFO L168 Benchmark]: Boogie Preprocessor took 20.67 ms. Allocated memory is still 194.0 MB. Free memory was 165.6 MB in the beginning and 164.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:53,149 INFO L168 Benchmark]: RCFGBuilder took 511.47 ms. Allocated memory is still 194.0 MB. Free memory was 164.5 MB in the beginning and 139.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:53,149 INFO L168 Benchmark]: TraceAbstraction took 3881.13 ms. Allocated memory was 194.0 MB in the beginning and 252.7 MB in the end (delta: 58.7 MB). Free memory was 139.3 MB in the beginning and 215.0 MB in the end (delta: -75.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:11:53,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 194.0 MB. Free memory is still 175.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 422.21 ms. Allocated memory is still 194.0 MB. Free memory was 157.0 MB in the beginning and 167.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 33.89 ms. Allocated memory is still 194.0 MB. Free memory was 167.6 MB in the beginning and 165.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.67 ms. Allocated memory is still 194.0 MB. Free memory was 165.6 MB in the beginning and 164.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 511.47 ms. Allocated memory is still 194.0 MB. Free memory was 164.5 MB in the beginning and 139.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3881.13 ms. Allocated memory was 194.0 MB in the beginning and 252.7 MB in the end (delta: 58.7 MB). Free memory was 139.3 MB in the beginning and 215.0 MB in the end (delta: -75.6 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: 18324, positive: 17693, positive conditional: 17693, positive unconditional: 0, negative: 631, negative conditional: 631, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18248, positive: 17693, positive conditional: 0, positive unconditional: 17693, negative: 555, negative conditional: 0, negative unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 658, positive: 639, positive conditional: 0, positive unconditional: 639, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 658, positive: 635, positive conditional: 0, positive unconditional: 635, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18248, positive: 17054, positive conditional: 0, positive unconditional: 17054, negative: 536, negative conditional: 0, negative unconditional: 536, unknown: 658, unknown conditional: 0, unknown unconditional: 658] , Statistics on independence cache: Total cache size (in pairs): 658, Positive cache size: 639, Positive conditional cache size: 0, Positive unconditional cache size: 639, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Independence queries for same thread: 76 - 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: 18]: 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 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3748.9ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 53.8ms, AutomataDifference: 1388.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 615.3ms, PartialOrderReductionTime: 584.7ms, HoareTripleCheckerStatistics: 669 SDtfs, 958 SDslu, 1998 SDs, 0 SdLazy, 257 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 254.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 947.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5557occurred in iteration=0, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 311.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 1052 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.7ms SsaConstructionTime, 186.2ms SatisfiabilityAnalysisTime, 956.9ms InterpolantComputationTime, 364 NumberOfCodeBlocks, 364 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 357 ConstructedInterpolants, 0 QuantifiedInterpolants, 991 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 17:11:53,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...