/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:12:17,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:12:17,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:12:17,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:12:17,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:12:17,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:12:17,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:12:17,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:12:17,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:12:17,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:12:17,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:12:17,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:12:17,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:12:17,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:12:17,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:12:17,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:12:17,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:12:17,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:12:17,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:12:17,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:12:17,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:12:17,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:12:17,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:12:17,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:12:17,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:12:17,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:12:17,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:12:17,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:12:17,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:12:17,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:12:17,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:12:17,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:12:17,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:12:17,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:12:17,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:12:17,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:12:17,093 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.epf [2019-12-19 05:12:17,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:12:17,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:12:17,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:12:17,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:12:17,128 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:12:17,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:12:17,128 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:12:17,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:12:17,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:12:17,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:12:17,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:12:17,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:12:17,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:12:17,130 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:12:17,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:12:17,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:12:17,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:12:17,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:12:17,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:12:17,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:12:17,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:12:17,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:12:17,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:12:17,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:12:17,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:12:17,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:12:17,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:12:17,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:12:17,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:12:17,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:12:17,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:12:17,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:12:17,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:12:17,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:12:17,435 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:12:17,435 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2019-12-19 05:12:17,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d6b91dc/0c66971a2d254285b4d8ec72e6f5b182/FLAGff251a146 [2019-12-19 05:12:18,070 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:12:18,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2019-12-19 05:12:18,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d6b91dc/0c66971a2d254285b4d8ec72e6f5b182/FLAGff251a146 [2019-12-19 05:12:18,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d6b91dc/0c66971a2d254285b4d8ec72e6f5b182 [2019-12-19 05:12:18,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:12:18,378 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:12:18,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:12:18,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:12:18,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:12:18,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:12:18" (1/1) ... [2019-12-19 05:12:18,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cae7156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:18, skipping insertion in model container [2019-12-19 05:12:18,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:12:18" (1/1) ... [2019-12-19 05:12:18,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:12:18,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:12:18,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:12:18,942 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:12:18,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:12:19,080 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:12:19,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19 WrapperNode [2019-12-19 05:12:19,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:12:19,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:12:19,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:12:19,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:12:19,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:12:19,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:12:19,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:12:19,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:12:19,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (1/1) ... [2019-12-19 05:12:19,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:12:19,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:12:19,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:12:19,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:12:19,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (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 [2019-12-19 05:12:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:12:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:12:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:12:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:12:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:12:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:12:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:12:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:12:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:12:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:12:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:12:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:12:19,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:12:19,233 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:12:19,577 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:12:19,577 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:12:19,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:12:19 BoogieIcfgContainer [2019-12-19 05:12:19,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:12:19,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:12:19,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:12:19,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:12:19,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:12:18" (1/3) ... [2019-12-19 05:12:19,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342370d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:12:19, skipping insertion in model container [2019-12-19 05:12:19,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:12:19" (2/3) ... [2019-12-19 05:12:19,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342370d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:12:19, skipping insertion in model container [2019-12-19 05:12:19,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:12:19" (3/3) ... [2019-12-19 05:12:19,588 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2019-12-19 05:12:19,600 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:12:19,601 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:12:19,608 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:12:19,609 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:12:19,639 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,639 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,640 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,640 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,641 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,641 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,641 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,642 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,642 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,642 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,643 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,643 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,643 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,644 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,644 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,644 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,644 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,645 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,649 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,649 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,650 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,650 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,655 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,655 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,665 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,665 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,665 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,665 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:12:19,684 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:12:19,706 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:12:19,706 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:12:19,706 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:12:19,706 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:12:19,706 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:12:19,707 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:12:19,707 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:12:19,707 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:12:19,720 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:12:19,814 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:12:19,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:12:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:12:19,835 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:12:19,837 INFO L411 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] [2019-12-19 05:12:19,838 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:12:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:12:19,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-19 05:12:19,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:12:19,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067761209] [2019-12-19 05:12:19,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:12:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:12:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:12:20,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067761209] [2019-12-19 05:12:20,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:12:20,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:12:20,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059359740] [2019-12-19 05:12:20,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:12:20,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:12:20,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:12:20,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:12:20,284 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:12:20,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:12:20,417 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:12:20,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:12:20,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:12:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:12:20,464 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:12:20,464 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:12:20,466 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:12:20,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:12:20,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:12:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:12:20,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:12:20,586 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:12:20,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:12:20,587 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:12:20,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:12:20,587 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:12:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:12:20,592 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:12:20,592 INFO L411 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] [2019-12-19 05:12:20,592 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:12:20,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:12:20,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-19 05:12:20,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:12:20,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92289322] [2019-12-19 05:12:20,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:12:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:12:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:12:20,792 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92289322] [2019-12-19 05:12:20,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:12:20,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:12:20,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147316258] [2019-12-19 05:12:20,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:12:20,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:12:20,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:12:20,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:12:20,796 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:12:20,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:12:20,896 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:12:20,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:12:20,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:12:20,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:12:20,906 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:12:20,907 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:12:20,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:12:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:12:20,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:12:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:12:20,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:12:20,966 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:12:20,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:12:20,966 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:12:20,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:12:20,966 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:12:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:12:20,970 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:12:20,970 INFO L411 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] [2019-12-19 05:12:20,970 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:12:20,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:12:20,971 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-19 05:12:20,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:12:20,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21076958] [2019-12-19 05:12:20,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:12:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:12:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:12:21,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21076958] [2019-12-19 05:12:21,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:12:21,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:12:21,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680806914] [2019-12-19 05:12:21,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:12:21,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:12:21,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:12:21,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:12:21,117 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:12:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:12:21,222 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:12:21,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:12:21,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:12:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:12:21,226 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:12:21,226 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:12:21,226 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:12:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:12:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:12:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:12:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:12:21,241 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:12:21,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:12:21,241 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:12:21,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:12:21,241 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:12:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:12:21,243 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:12:21,243 INFO L411 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] [2019-12-19 05:12:21,243 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:12:21,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:12:21,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-19 05:12:21,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:12:21,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916925577] [2019-12-19 05:12:21,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:12:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:12:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:12:21,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916925577] [2019-12-19 05:12:21,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:12:21,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:12:21,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022993740] [2019-12-19 05:12:21,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:12:21,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:12:21,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:12:21,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:12:21,451 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:12:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:12:21,760 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-12-19 05:12:21,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:12:21,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:12:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:12:21,765 INFO L225 Difference]: With dead ends: 565 [2019-12-19 05:12:21,765 INFO L226 Difference]: Without dead ends: 394 [2019-12-19 05:12:21,767 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:12:21,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-12-19 05:12:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 340. [2019-12-19 05:12:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-19 05:12:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-19 05:12:21,791 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-19 05:12:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:12:21,791 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-19 05:12:21,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:12:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-19 05:12:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:12:21,793 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:12:21,793 INFO L411 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] [2019-12-19 05:12:21,794 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:12:21,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:12:21,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1534465577, now seen corresponding path program 2 times [2019-12-19 05:12:21,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:12:21,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559443607] [2019-12-19 05:12:21,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:12:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:12:22,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:12:22,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559443607] [2019-12-19 05:12:22,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:12:22,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:12:22,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072621985] [2019-12-19 05:12:22,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:12:22,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:12:22,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:12:22,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:12:22,012 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 8 states. [2019-12-19 05:12:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:12:22,149 INFO L93 Difference]: Finished difference Result 556 states and 1473 transitions. [2019-12-19 05:12:22,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:12:22,150 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:12:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:12:22,153 INFO L225 Difference]: With dead ends: 556 [2019-12-19 05:12:22,153 INFO L226 Difference]: Without dead ends: 334 [2019-12-19 05:12:22,153 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:12:22,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-19 05:12:22,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2019-12-19 05:12:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-19 05:12:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-19 05:12:22,165 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-19 05:12:22,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:12:22,165 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-19 05:12:22,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:12:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-19 05:12:22,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:12:22,167 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:12:22,167 INFO L411 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] [2019-12-19 05:12:22,167 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:12:22,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:12:22,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 3 times [2019-12-19 05:12:22,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:12:22,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592480322] [2019-12-19 05:12:22,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:12:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:12:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:12:22,323 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592480322] [2019-12-19 05:12:22,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:12:22,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:12:22,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353477264] [2019-12-19 05:12:22,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:12:22,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:12:22,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:12:22,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:12:22,325 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-19 05:12:22,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:12:22,443 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-19 05:12:22,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:12:22,443 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:12:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:12:22,446 INFO L225 Difference]: With dead ends: 487 [2019-12-19 05:12:22,446 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 05:12:22,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:12:22,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 05:12:22,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 05:12:22,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 05:12:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 05:12:22,457 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 05:12:22,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:12:22,457 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 05:12:22,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:12:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 05:12:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:12:22,459 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:12:22,459 INFO L411 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] [2019-12-19 05:12:22,459 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:12:22,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:12:22,459 INFO L82 PathProgramCache]: Analyzing trace with hash -627162331, now seen corresponding path program 4 times [2019-12-19 05:12:22,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:12:22,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608934671] [2019-12-19 05:12:22,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:12:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:12:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:12:22,611 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608934671] [2019-12-19 05:12:22,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:12:22,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:12:22,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638101690] [2019-12-19 05:12:22,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:12:22,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:12:22,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:12:22,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:12:22,616 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-19 05:12:22,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:12:22,731 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 05:12:22,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:12:22,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:12:22,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:12:22,732 INFO L225 Difference]: With dead ends: 259 [2019-12-19 05:12:22,732 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:12:22,732 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:12:22,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:12:22,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:12:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:12:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:12:22,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:12:22,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:12:22,734 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:12:22,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:12:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:12:22,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:12:22,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:12:22 BasicIcfg [2019-12-19 05:12:22,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:12:22,747 INFO L168 Benchmark]: Toolchain (without parser) took 4367.85 ms. Allocated memory was 146.3 MB in the beginning and 247.5 MB in the end (delta: 101.2 MB). Free memory was 102.5 MB in the beginning and 109.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 94.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:12:22,754 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:12:22,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.08 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 161.1 MB in the end (delta: -59.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:12:22,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.16 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:12:22,758 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:12:22,758 INFO L168 Benchmark]: RCFGBuilder took 415.71 ms. Allocated memory is still 203.4 MB. Free memory was 157.2 MB in the beginning and 136.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:12:22,762 INFO L168 Benchmark]: TraceAbstraction took 3162.36 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 136.6 MB in the beginning and 109.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:12:22,776 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.08 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 161.1 MB in the end (delta: -59.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.16 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 415.71 ms. Allocated memory is still 203.4 MB. Free memory was 157.2 MB in the beginning and 136.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3162.36 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 136.6 MB in the beginning and 109.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 375 SDtfs, 461 SDslu, 1075 SDs, 0 SdLazy, 174 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 63 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 21969 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...