/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/safe036_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:20:29,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:20:29,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:20:30,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 00:20:30,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 00:20:30,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 00:20:30,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 00:20:30,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 00:20:30,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 00:20:30,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 00:20:30,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 00:20:30,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 00:20:30,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:20:30,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:20:30,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:20:30,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:20:30,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:20:30,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:20:30,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:20:30,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:20:30,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:20:30,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:20:30,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:20:30,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:20:30,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 00:20:30,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 00:20:30,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 00:20:30,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 00:20:30,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 00:20:30,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 00:20:30,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 00:20:30,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 00:20:30,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 00:20:30,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 00:20:30,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 00:20:30,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 00:20:30,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 00:20:30,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 00:20:30,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:20:30,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:20:30,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:20:30,116 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 [2021-07-14 00:20:30,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:20:30,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:20:30,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:20:30,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:20:30,158 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:20:30,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:20:30,158 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:20:30,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:20:30,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:20:30,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:20:30,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:20:30,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:20:30,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:20:30,160 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:20:30,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:20:30,160 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:20:30,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:20:30,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:20:30,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:20:30,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:20:30,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:20:30,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:20:30,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:20:30,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:20:30,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:20:30,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:20:30,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:20:30,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:20:30,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:20:30,162 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:20:30,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:20:30,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:20:30,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:20:30,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:20:30,518 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:20:30,518 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:20:30,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2021-07-14 00:20:30,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f7896732/65a54e06b3e64c29808a04f4ab2825d7/FLAGc02016cc0 [2021-07-14 00:20:30,993 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:20:30,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2021-07-14 00:20:31,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f7896732/65a54e06b3e64c29808a04f4ab2825d7/FLAGc02016cc0 [2021-07-14 00:20:31,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f7896732/65a54e06b3e64c29808a04f4ab2825d7 [2021-07-14 00:20:31,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:20:31,026 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:20:31,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:20:31,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:20:31,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:20:31,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76947be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31, skipping insertion in model container [2021-07-14 00:20:31,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:20:31,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:20:31,209 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/safe036_pso.oepc.i[950,963] [2021-07-14 00:20:31,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:20:31,379 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:20:31,389 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/safe036_pso.oepc.i[950,963] [2021-07-14 00:20:31,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:20:31,470 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:20:31,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31 WrapperNode [2021-07-14 00:20:31,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:20:31,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:20:31,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:20:31,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:20:31,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:20:31,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:20:31,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:20:31,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:20:31,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... [2021-07-14 00:20:31,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:20:31,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:20:31,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:20:31,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:20:31,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:20:31,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:20:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:20:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:20:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:20:31,649 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:20:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:20:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:20:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:20:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:20:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:20:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:20:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:20:31,652 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:20:32,034 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:20:32,035 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:20:32,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:32 BoogieIcfgContainer [2021-07-14 00:20:32,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:20:32,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:20:32,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:20:32,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:20:32,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:20:31" (1/3) ... [2021-07-14 00:20:32,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1c2a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:32, skipping insertion in model container [2021-07-14 00:20:32,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:31" (2/3) ... [2021-07-14 00:20:32,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1c2a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:32, skipping insertion in model container [2021-07-14 00:20:32,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:32" (3/3) ... [2021-07-14 00:20:32,044 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.oepc.i [2021-07-14 00:20:32,052 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:20:32,052 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:20:32,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:20:32,053 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:20:32,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,086 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,086 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,089 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,089 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,090 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,090 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,093 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,094 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,094 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,099 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:32,104 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:20:32,125 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-14 00:20:32,154 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:20:32,154 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:20:32,154 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:20:32,155 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:20:32,155 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:20:32,155 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:20:32,155 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:20:32,155 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:20:32,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 805 states, 693 states have (on average 1.673881673881674) internal successors, (1160), 804 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:32,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-14 00:20:32,362 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:32,363 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] [2021-07-14 00:20:32,363 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:32,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:32,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1835842458, now seen corresponding path program 1 times [2021-07-14 00:20:32,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:32,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28445841] [2021-07-14 00:20:32,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:32,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:32,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:32,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:32,653 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:20:32,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:20:32,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:32,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:20:32,698 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:20:32,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:32,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:32,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:32,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:32,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28445841] [2021-07-14 00:20:32,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28445841] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:32,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:32,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:20:32,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090390] [2021-07-14 00:20:32,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:20:32,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:32,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:20:32,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:20:32,762 INFO L87 Difference]: Start difference. First operand has 805 states, 693 states have (on average 1.673881673881674) internal successors, (1160), 804 states have internal predecessors, (1160), 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 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:33,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:33,033 INFO L93 Difference]: Finished difference Result 858 states and 1146 transitions. [2021-07-14 00:20:33,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:20:33,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-07-14 00:20:33,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:33,052 INFO L225 Difference]: With dead ends: 858 [2021-07-14 00:20:33,053 INFO L226 Difference]: Without dead ends: 288 [2021-07-14 00:20:33,055 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 185.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:33,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-07-14 00:20:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-07-14 00:20:33,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 281 states have (on average 1.5871886120996441) internal successors, (446), 287 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 446 transitions. [2021-07-14 00:20:33,124 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 446 transitions. Word has length 41 [2021-07-14 00:20:33,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:33,124 INFO L482 AbstractCegarLoop]: Abstraction has 288 states and 446 transitions. [2021-07-14 00:20:33,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:33,124 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 446 transitions. [2021-07-14 00:20:33,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-14 00:20:33,129 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:33,129 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] [2021-07-14 00:20:33,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:20:33,130 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:33,135 INFO L82 PathProgramCache]: Analyzing trace with hash 2097042136, now seen corresponding path program 1 times [2021-07-14 00:20:33,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:33,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090872632] [2021-07-14 00:20:33,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:33,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:33,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:33,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:33,243 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:20:33,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:20:33,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:20:33,294 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:20:33,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:33,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:33,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:33,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090872632] [2021-07-14 00:20:33,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090872632] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:33,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:33,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:33,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038751283] [2021-07-14 00:20:33,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:33,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:33,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:33,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:33,310 INFO L87 Difference]: Start difference. First operand 288 states and 446 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:33,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:33,491 INFO L93 Difference]: Finished difference Result 180 states and 255 transitions. [2021-07-14 00:20:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:20:33,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2021-07-14 00:20:33,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:33,493 INFO L225 Difference]: With dead ends: 180 [2021-07-14 00:20:33,493 INFO L226 Difference]: Without dead ends: 97 [2021-07-14 00:20:33,494 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 160.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:20:33,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-07-14 00:20:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-07-14 00:20:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 94 states have (on average 1.351063829787234) internal successors, (127), 96 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:33,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 127 transitions. [2021-07-14 00:20:33,497 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 127 transitions. Word has length 45 [2021-07-14 00:20:33,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:33,498 INFO L482 AbstractCegarLoop]: Abstraction has 97 states and 127 transitions. [2021-07-14 00:20:33,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:33,498 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 127 transitions. [2021-07-14 00:20:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-14 00:20:33,499 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:33,499 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, 1] [2021-07-14 00:20:33,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:20:33,500 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:33,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:33,500 INFO L82 PathProgramCache]: Analyzing trace with hash 324865708, now seen corresponding path program 1 times [2021-07-14 00:20:33,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:33,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226045402] [2021-07-14 00:20:33,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:33,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:33,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:33,595 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-07-14 00:20:33,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:33,606 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:33,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:33,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:33,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:33,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:33,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226045402] [2021-07-14 00:20:33,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226045402] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:33,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:33,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:33,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690211180] [2021-07-14 00:20:33,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:33,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:33,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:33,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:33,665 INFO L87 Difference]: Start difference. First operand 97 states and 127 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) [2021-07-14 00:20:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:33,779 INFO L93 Difference]: Finished difference Result 135 states and 185 transitions. [2021-07-14 00:20:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:20:33,780 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 [2021-07-14 00:20:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:33,781 INFO L225 Difference]: With dead ends: 135 [2021-07-14 00:20:33,781 INFO L226 Difference]: Without dead ends: 97 [2021-07-14 00:20:33,781 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-07-14 00:20:33,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2021-07-14 00:20:33,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 92 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2021-07-14 00:20:33,784 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 121 transitions. Word has length 49 [2021-07-14 00:20:33,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:33,786 INFO L482 AbstractCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-07-14 00:20:33,786 INFO L483 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) [2021-07-14 00:20:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2021-07-14 00:20:33,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-14 00:20:33,789 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:33,789 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, 1] [2021-07-14 00:20:33,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:20:33,790 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:33,792 INFO L82 PathProgramCache]: Analyzing trace with hash 344333462, now seen corresponding path program 2 times [2021-07-14 00:20:33,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:33,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273838086] [2021-07-14 00:20:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:33,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:33,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:33,878 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-07-14 00:20:33,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:33,887 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:33,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:33,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:33,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:33,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:33,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273838086] [2021-07-14 00:20:33,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273838086] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:33,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:33,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:33,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104172121] [2021-07-14 00:20:33,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:33,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:33,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:33,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:33,933 INFO L87 Difference]: Start difference. First operand 93 states and 121 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) [2021-07-14 00:20:34,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:34,021 INFO L93 Difference]: Finished difference Result 81 states and 105 transitions. [2021-07-14 00:20:34,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:20:34,021 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 [2021-07-14 00:20:34,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:34,021 INFO L225 Difference]: With dead ends: 81 [2021-07-14 00:20:34,022 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:20:34,022 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 114.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:20:34,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:20:34,022 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) [2021-07-14 00:20:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:20:34,023 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-07-14 00:20:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:34,023 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:20:34,023 INFO L483 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) [2021-07-14 00:20:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:20:34,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:20:34,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:20:34,025 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:20:34,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:20:34 BasicIcfg [2021-07-14 00:20:34,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:20:34,028 INFO L168 Benchmark]: Toolchain (without parser) took 3001.31 ms. Allocated memory was 238.0 MB in the beginning and 324.0 MB in the end (delta: 86.0 MB). Free memory was 200.9 MB in the beginning and 231.5 MB in the end (delta: -30.6 MB). Peak memory consumption was 56.9 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:34,028 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 238.0 MB. Free memory is still 218.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:20:34,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.81 ms. Allocated memory is still 238.0 MB. Free memory was 200.7 MB in the beginning and 212.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:34,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.49 ms. Allocated memory is still 238.0 MB. Free memory was 212.0 MB in the beginning and 210.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:34,030 INFO L168 Benchmark]: Boogie Preprocessor took 33.93 ms. Allocated memory is still 238.0 MB. Free memory was 210.5 MB in the beginning and 208.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:34,030 INFO L168 Benchmark]: RCFGBuilder took 472.13 ms. Allocated memory is still 238.0 MB. Free memory was 208.9 MB in the beginning and 186.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:34,031 INFO L168 Benchmark]: TraceAbstraction took 1988.29 ms. Allocated memory was 238.0 MB in the beginning and 324.0 MB in the end (delta: 86.0 MB). Free memory was 186.4 MB in the beginning and 231.5 MB in the end (delta: -45.2 MB). Peak memory consumption was 42.4 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:34,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 238.0 MB. Free memory is still 218.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 444.81 ms. Allocated memory is still 238.0 MB. Free memory was 200.7 MB in the beginning and 212.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.49 ms. Allocated memory is still 238.0 MB. Free memory was 212.0 MB in the beginning and 210.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.93 ms. Allocated memory is still 238.0 MB. Free memory was 210.5 MB in the beginning and 208.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 472.13 ms. Allocated memory is still 238.0 MB. Free memory was 208.9 MB in the beginning and 186.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1988.29 ms. Allocated memory was 238.0 MB in the beginning and 324.0 MB in the end (delta: 86.0 MB). Free memory was 186.4 MB in the beginning and 231.5 MB in the end (delta: -45.2 MB). Peak memory consumption was 42.4 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: 1469, positive conditional: 1469, positive unconditional: 0, negative: 63, negative conditional: 63, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1521, positive: 1469, positive conditional: 0, positive unconditional: 1469, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 320, positive: 312, positive conditional: 0, positive unconditional: 312, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 320, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 29, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1521, positive: 1157, positive conditional: 0, positive unconditional: 1157, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 320, unknown conditional: 0, unknown unconditional: 320] , Statistics on independence cache: Total cache size (in pairs): 320, Positive cache size: 312, Positive conditional cache size: 0, Positive unconditional cache size: 312, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1873.0ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 26.6ms, AutomataDifference: 704.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 188.4ms, PartialOrderReductionTime: 168.5ms, HoareTripleCheckerStatistics: 244 SDtfs, 263 SDslu, 836 SDs, 0 SdLazy, 117 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 163.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 588.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 63.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.2ms SsaConstructionTime, 123.4ms SatisfiabilityAnalysisTime, 590.2ms InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...