/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/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:13:16,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:13:16,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:13:16,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:13:16,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:13:16,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:13:16,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:13:16,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:13:16,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:13:16,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:13:16,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:13:16,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:13:16,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:13:16,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:13:16,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:13:16,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:13:16,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:13:16,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:13:16,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:13:16,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:13:16,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:13:16,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:13:16,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:13:16,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:13:16,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 22:13:16,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 22:13:16,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 22:13:16,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 22:13:16,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 22:13:16,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 22:13:16,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:13:16,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:13:16,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:13:16,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:13:16,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:13:16,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:13:16,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:13:16,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:13:16,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:13:16,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:13:16,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:13:16,959 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 [2021-07-09 22:13:16,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:13:16,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:13:16,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:13:16,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:13:16,979 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:13:16,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:13:16,979 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:13:16,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:13:16,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:13:16,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:13:16,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:13:16,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:13:16,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:13:16,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:13:16,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:13:16,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:13:16,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:13:16,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:13:16,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:13:16,982 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:13:16,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:13:16,982 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:13:16,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:13:17,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:13:17,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:13:17,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:13:17,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:13:17,232 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:13:17,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-07-09 22:13:17,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5e52fd56/ca0e7d7782b647f49557d069a79139d1/FLAG43d081cdd [2021-07-09 22:13:17,716 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:13:17,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-07-09 22:13:17,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5e52fd56/ca0e7d7782b647f49557d069a79139d1/FLAG43d081cdd [2021-07-09 22:13:17,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5e52fd56/ca0e7d7782b647f49557d069a79139d1 [2021-07-09 22:13:17,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:13:17,741 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:13:17,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:13:17,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:13:17,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:13:17,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:13:17" (1/1) ... [2021-07-09 22:13:17,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@455d058a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:17, skipping insertion in model container [2021-07-09 22:13:17,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:13:17" (1/1) ... [2021-07-09 22:13:17,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:13:17,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:13:17,928 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i[950,963] [2021-07-09 22:13:18,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:13:18,036 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:13:18,043 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i[950,963] [2021-07-09 22:13:18,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:13:18,079 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:13:18,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18 WrapperNode [2021-07-09 22:13:18,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:13:18,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:13:18,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:13:18,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:13:18,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:13:18,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:13:18,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:13:18,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:13:18,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... [2021-07-09 22:13:18,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:13:18,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:13:18,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:13:18,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:13:18,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:13:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:13:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:13:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:13:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:13:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:13:18,179 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:13:18,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:13:18,448 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 22:13:18,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:13:18 BoogieIcfgContainer [2021-07-09 22:13:18,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:13:18,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:13:18,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:13:18,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:13:18,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:13:17" (1/3) ... [2021-07-09 22:13:18,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640d2b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:13:18, skipping insertion in model container [2021-07-09 22:13:18,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:18" (2/3) ... [2021-07-09 22:13:18,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640d2b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:13:18, skipping insertion in model container [2021-07-09 22:13:18,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:13:18" (3/3) ... [2021-07-09 22:13:18,456 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2021-07-09 22:13:18,460 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:13:18,460 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:13:18,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:13:18,460 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:13:18,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:18,500 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:13:18,515 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-09 22:13:18,540 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:13:18,541 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:13:18,541 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:13:18,541 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:13:18,541 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:13:18,541 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:13:18,542 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:13:18,542 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:13:18,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 804 states, 692 states have (on average 1.6921965317919074) internal successors, (1171), 803 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:18,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-07-09 22:13:18,725 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:18,726 INFO L508 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] [2021-07-09 22:13:18,726 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:18,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:18,730 INFO L82 PathProgramCache]: Analyzing trace with hash 311474389, now seen corresponding path program 1 times [2021-07-09 22:13:18,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:18,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514945257] [2021-07-09 22:13:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:18,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:18,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:18,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:18,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:18,932 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:13:18,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:13:18,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:18,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:18,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:18,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:18,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:18,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:13:18,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:18,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514945257] [2021-07-09 22:13:18,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514945257] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:18,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:18,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:13:18,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548660636] [2021-07-09 22:13:18,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:13:18,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:18,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:13:18,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:13:18,981 INFO L87 Difference]: Start difference. First operand has 804 states, 692 states have (on average 1.6921965317919074) internal successors, (1171), 803 states have internal predecessors, (1171), 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 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:19,146 INFO L93 Difference]: Finished difference Result 964 states and 1415 transitions. [2021-07-09 22:13:19,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:13:19,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-07-09 22:13:19,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:19,165 INFO L225 Difference]: With dead ends: 964 [2021-07-09 22:13:19,166 INFO L226 Difference]: Without dead ends: 427 [2021-07-09 22:13:19,167 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 119.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:19,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-07-09 22:13:19,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-07-09 22:13:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 420 states have (on average 1.7261904761904763) internal successors, (725), 426 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 725 transitions. [2021-07-09 22:13:19,234 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 725 transitions. Word has length 40 [2021-07-09 22:13:19,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:19,235 INFO L482 AbstractCegarLoop]: Abstraction has 427 states and 725 transitions. [2021-07-09 22:13:19,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,235 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 725 transitions. [2021-07-09 22:13:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-09 22:13:19,236 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:19,237 INFO L508 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] [2021-07-09 22:13:19,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:13:19,237 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:19,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:19,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1256512810, now seen corresponding path program 1 times [2021-07-09 22:13:19,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:19,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217798394] [2021-07-09 22:13:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:19,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:19,305 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:13:19,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:13:19,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:13:19,333 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:13:19,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:19,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:13:19,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:19,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217798394] [2021-07-09 22:13:19,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217798394] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:19,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:19,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:13:19,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846210858] [2021-07-09 22:13:19,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:13:19,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:19,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:13:19,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:13:19,345 INFO L87 Difference]: Start difference. First operand 427 states and 725 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:19,428 INFO L93 Difference]: Finished difference Result 427 states and 669 transitions. [2021-07-09 22:13:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:13:19,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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 [2021-07-09 22:13:19,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:19,431 INFO L225 Difference]: With dead ends: 427 [2021-07-09 22:13:19,431 INFO L226 Difference]: Without dead ends: 287 [2021-07-09 22:13:19,432 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 81.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:19,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-07-09 22:13:19,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2021-07-09 22:13:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 280 states have (on average 1.6107142857142858) internal successors, (451), 286 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 451 transitions. [2021-07-09 22:13:19,437 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 451 transitions. Word has length 42 [2021-07-09 22:13:19,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:19,437 INFO L482 AbstractCegarLoop]: Abstraction has 287 states and 451 transitions. [2021-07-09 22:13:19,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,437 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 451 transitions. [2021-07-09 22:13:19,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-07-09 22:13:19,438 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:19,438 INFO L508 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] [2021-07-09 22:13:19,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:13:19,438 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:19,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:19,438 INFO L82 PathProgramCache]: Analyzing trace with hash 297499667, now seen corresponding path program 1 times [2021-07-09 22:13:19,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:19,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855815348] [2021-07-09 22:13:19,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:19,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:19,506 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:13:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:13:19,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:19,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:19,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:13:19,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:19,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855815348] [2021-07-09 22:13:19,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855815348] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:19,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:19,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:13:19,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161275247] [2021-07-09 22:13:19,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:13:19,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:19,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:13:19,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:13:19,535 INFO L87 Difference]: Start difference. First operand 287 states and 451 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:19,608 INFO L93 Difference]: Finished difference Result 423 states and 697 transitions. [2021-07-09 22:13:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:13:19,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-07-09 22:13:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:19,610 INFO L225 Difference]: With dead ends: 423 [2021-07-09 22:13:19,610 INFO L226 Difference]: Without dead ends: 262 [2021-07-09 22:13:19,610 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 71.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-07-09 22:13:19,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 220. [2021-07-09 22:13:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.6093023255813954) internal successors, (346), 219 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 346 transitions. [2021-07-09 22:13:19,614 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 346 transitions. Word has length 44 [2021-07-09 22:13:19,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:19,614 INFO L482 AbstractCegarLoop]: Abstraction has 220 states and 346 transitions. [2021-07-09 22:13:19,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,614 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 346 transitions. [2021-07-09 22:13:19,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-07-09 22:13:19,616 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:19,616 INFO L508 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] [2021-07-09 22:13:19,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:13:19,616 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:19,617 INFO L82 PathProgramCache]: Analyzing trace with hash -433570413, now seen corresponding path program 1 times [2021-07-09 22:13:19,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:19,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181615595] [2021-07-09 22:13:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:19,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:19,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:19,657 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:13:19,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:13:19,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:13:19,674 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:13:19,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:19,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:13:19,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:19,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181615595] [2021-07-09 22:13:19,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181615595] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:19,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:19,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:13:19,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069286268] [2021-07-09 22:13:19,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:13:19,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:19,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:13:19,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:13:19,683 INFO L87 Difference]: Start difference. First operand 220 states and 346 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:19,772 INFO L93 Difference]: Finished difference Result 136 states and 184 transitions. [2021-07-09 22:13:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:13:19,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-07-09 22:13:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:19,774 INFO L225 Difference]: With dead ends: 136 [2021-07-09 22:13:19,774 INFO L226 Difference]: Without dead ends: 81 [2021-07-09 22:13:19,774 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 73.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 22:13:19,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-07-09 22:13:19,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-07-09 22:13:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 80 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2021-07-09 22:13:19,776 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 44 [2021-07-09 22:13:19,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:19,776 INFO L482 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2021-07-09 22:13:19,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2021-07-09 22:13:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-07-09 22:13:19,777 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:19,777 INFO L508 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] [2021-07-09 22:13:19,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:13:19,777 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1891802137, now seen corresponding path program 1 times [2021-07-09 22:13:19,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:19,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052462772] [2021-07-09 22:13:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:19,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:19,840 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-07-09 22:13:19,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:19,846 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:13:19,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:13:19,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:19,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:19,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:19,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:13:19,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:19,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052462772] [2021-07-09 22:13:19,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052462772] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:19,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:19,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:13:19,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450733402] [2021-07-09 22:13:19,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:13:19,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:19,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:13:19,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:13:19,878 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:19,939 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2021-07-09 22:13:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 22:13:19,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-07-09 22:13:19,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:19,940 INFO L225 Difference]: With dead ends: 69 [2021-07-09 22:13:19,940 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:13:19,941 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:19,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:13:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:13:19,941 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) [2021-07-09 22:13:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:13:19,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-07-09 22:13:19,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:19,941 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:13:19,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:19,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:13:19,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:13:19,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:13:19,943 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:13:19,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:13:19 BasicIcfg [2021-07-09 22:13:19,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:13:19,948 INFO L168 Benchmark]: Toolchain (without parser) took 2204.11 ms. Allocated memory was 239.1 MB in the beginning and 302.0 MB in the end (delta: 62.9 MB). Free memory was 201.5 MB in the beginning and 108.6 MB in the end (delta: 92.9 MB). Peak memory consumption was 156.4 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:19,955 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 239.1 MB. Free memory is still 219.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:13:19,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.81 ms. Allocated memory is still 239.1 MB. Free memory was 201.4 MB in the beginning and 211.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:19,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.38 ms. Allocated memory is still 239.1 MB. Free memory was 211.7 MB in the beginning and 209.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:19,956 INFO L168 Benchmark]: Boogie Preprocessor took 13.50 ms. Allocated memory is still 239.1 MB. Free memory was 209.6 MB in the beginning and 208.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:13:19,957 INFO L168 Benchmark]: RCFGBuilder took 330.96 ms. Allocated memory is still 239.1 MB. Free memory was 208.5 MB in the beginning and 187.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:19,959 INFO L168 Benchmark]: TraceAbstraction took 1492.91 ms. Allocated memory was 239.1 MB in the beginning and 302.0 MB in the end (delta: 62.9 MB). Free memory was 187.1 MB in the beginning and 108.6 MB in the end (delta: 78.4 MB). Peak memory consumption was 141.9 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:19,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 239.1 MB. Free memory is still 219.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 334.81 ms. Allocated memory is still 239.1 MB. Free memory was 201.4 MB in the beginning and 211.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.38 ms. Allocated memory is still 239.1 MB. Free memory was 211.7 MB in the beginning and 209.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.50 ms. Allocated memory is still 239.1 MB. Free memory was 209.6 MB in the beginning and 208.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 330.96 ms. Allocated memory is still 239.1 MB. Free memory was 208.5 MB in the beginning and 187.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1492.91 ms. Allocated memory was 239.1 MB in the beginning and 302.0 MB in the end (delta: 62.9 MB). Free memory was 187.1 MB in the beginning and 108.6 MB in the end (delta: 78.4 MB). Peak memory consumption was 141.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1532, positive: 1466, positive conditional: 1466, positive unconditional: 0, negative: 66, negative conditional: 66, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1521, positive: 1466, positive conditional: 0, positive unconditional: 1466, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 315, positive: 305, positive conditional: 0, positive unconditional: 305, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 315, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1521, positive: 1161, positive conditional: 0, positive unconditional: 1161, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 315, unknown conditional: 0, unknown unconditional: 315] , Statistics on independence cache: Total cache size (in pairs): 315, Positive cache size: 305, Positive conditional cache size: 0, Positive unconditional cache size: 305, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Independence queries for same thread: 11 - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1403.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 26.2ms, AutomataDifference: 513.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 160.7ms, PartialOrderReductionTime: 146.3ms, HoareTripleCheckerStatistics: 336 SDtfs, 323 SDslu, 995 SDs, 0 SdLazy, 141 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 424.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=804occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 68.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 42 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.7ms SsaConstructionTime, 86.7ms SatisfiabilityAnalysisTime, 420.4ms InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 593 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! Received shutdown request...