/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:21:39,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:21:39,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:21:39,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:21:39,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:21:39,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:21:39,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:21:39,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:21:39,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:21:39,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:21:39,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:21:39,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:21:39,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:21:39,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:21:39,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:21:39,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:21:39,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:21:39,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:21:39,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:21:39,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:21:39,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:21:39,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:21:39,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:21:39,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:21:39,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:21:39,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:21:39,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:21:39,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:21:39,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:21:39,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:21:39,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:21:39,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:21:39,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:21:39,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:21:39,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:21:39,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:21:39,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:21:39,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:21:39,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:21:39,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:21:39,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:21:39,219 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-VariableLbe.epf [2020-04-18 02:21:39,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:21:39,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:21:39,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:21:39,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:21:39,235 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:21:39,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:21:39,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:21:39,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:21:39,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:21:39,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:21:39,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:21:39,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:21:39,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:21:39,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:21:39,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:21:39,237 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:21:39,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:21:39,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:21:39,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:21:39,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:21:39,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:21:39,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:21:39,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:21:39,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:21:39,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:21:39,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:21:39,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:21:39,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:21:39,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:21:39,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:21:39,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:21:39,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:21:39,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:21:39,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:21:39,549 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:21:39,550 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-04-18 02:21:39,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5557a58/5e9eab2812624abab296d5b0e57c00c4/FLAGc944a8b12 [2020-04-18 02:21:40,153 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:21:40,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-04-18 02:21:40,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5557a58/5e9eab2812624abab296d5b0e57c00c4/FLAGc944a8b12 [2020-04-18 02:21:40,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5557a58/5e9eab2812624abab296d5b0e57c00c4 [2020-04-18 02:21:40,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:21:40,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:21:40,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:21:40,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:21:40,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:21:40,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:21:40" (1/1) ... [2020-04-18 02:21:40,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce9755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:40, skipping insertion in model container [2020-04-18 02:21:40,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:21:40" (1/1) ... [2020-04-18 02:21:40,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:21:40,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:21:41,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:21:41,060 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:21:41,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:21:41,197 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:21:41,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41 WrapperNode [2020-04-18 02:21:41,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:21:41,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:21:41,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:21:41,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:21:41,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:21:41,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:21:41,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:21:41,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:21:41,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (1/1) ... [2020-04-18 02:21:41,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:21:41,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:21:41,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:21:41,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:21:41,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (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 [2020-04-18 02:21:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:21:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:21:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:21:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:21:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:21:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:21:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:21:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:21:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:21:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:21:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:21:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:21:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:21:41,344 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:21:41,702 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:21:41,703 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:21:41,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:21:41 BoogieIcfgContainer [2020-04-18 02:21:41,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:21:41,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:21:41,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:21:41,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:21:41,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:21:40" (1/3) ... [2020-04-18 02:21:41,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530dcc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:21:41, skipping insertion in model container [2020-04-18 02:21:41,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:21:41" (2/3) ... [2020-04-18 02:21:41,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530dcc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:21:41, skipping insertion in model container [2020-04-18 02:21:41,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:21:41" (3/3) ... [2020-04-18 02:21:41,719 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2020-04-18 02:21:41,727 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:21:41,727 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:21:41,734 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:21:41,735 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:21:41,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,760 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,761 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,761 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,762 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,762 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,762 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,763 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,763 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,763 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,764 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,765 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,765 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,765 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,765 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,770 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,770 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,770 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,771 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,776 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,777 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,777 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,777 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,781 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,781 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,782 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,782 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:21:41,797 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:21:41,817 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:21:41,817 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:21:41,818 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:21:41,818 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:21:41,818 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:21:41,818 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:21:41,818 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:21:41,818 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:21:41,833 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-18 02:21:41,834 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 02:21:41,875 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 02:21:41,875 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:21:41,880 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:21:41,883 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 02:21:41,904 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 02:21:41,904 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:21:41,905 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:21:41,907 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 02:21:41,909 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:21:43,314 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-18 02:21:43,493 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 02:21:43,542 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-04-18 02:21:43,543 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-04-18 02:21:43,547 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-18 02:21:43,585 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-18 02:21:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 02:21:43,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:21:43,598 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:43,599 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:43,600 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:43,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:43,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-04-18 02:21:43,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:43,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951216032] [2020-04-18 02:21:43,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:43,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:43,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951216032] [2020-04-18 02:21:43,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:43,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:21:43,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986255198] [2020-04-18 02:21:43,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:21:43,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:43,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:21:43,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:21:43,865 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 02:21:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:43,940 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-18 02:21:43,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:21:43,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 02:21:43,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:43,974 INFO L225 Difference]: With dead ends: 282 [2020-04-18 02:21:43,974 INFO L226 Difference]: Without dead ends: 218 [2020-04-18 02:21:43,976 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:21:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-18 02:21:44,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-18 02:21:44,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-18 02:21:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-18 02:21:44,044 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-18 02:21:44,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,045 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-18 02:21:44,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:21:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-18 02:21:44,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:21:44,048 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,048 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1299119847, now seen corresponding path program 1 times [2020-04-18 02:21:44,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427955593] [2020-04-18 02:21:44,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:44,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427955593] [2020-04-18 02:21:44,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:44,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:21:44,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610244438] [2020-04-18 02:21:44,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:21:44,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:44,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:21:44,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:21:44,138 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-04-18 02:21:44,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:44,150 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-04-18 02:21:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:21:44,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 02:21:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:44,157 INFO L225 Difference]: With dead ends: 202 [2020-04-18 02:21:44,157 INFO L226 Difference]: Without dead ends: 202 [2020-04-18 02:21:44,158 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:21:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-04-18 02:21:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-04-18 02:21:44,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-04-18 02:21:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-04-18 02:21:44,195 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-04-18 02:21:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,196 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-04-18 02:21:44,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:21:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-04-18 02:21:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:21:44,197 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,198 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,198 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1618060859, now seen corresponding path program 1 times [2020-04-18 02:21:44,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22679917] [2020-04-18 02:21:44,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:44,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22679917] [2020-04-18 02:21:44,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:44,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:21:44,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817136486] [2020-04-18 02:21:44,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:21:44,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:44,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:21:44,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:21:44,261 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-04-18 02:21:44,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:44,269 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-04-18 02:21:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:21:44,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-18 02:21:44,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:44,272 INFO L225 Difference]: With dead ends: 194 [2020-04-18 02:21:44,272 INFO L226 Difference]: Without dead ends: 194 [2020-04-18 02:21:44,272 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:21:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-04-18 02:21:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-04-18 02:21:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-04-18 02:21:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-04-18 02:21:44,291 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-04-18 02:21:44,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,292 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-04-18 02:21:44,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:21:44,292 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-04-18 02:21:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:21:44,294 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,294 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,296 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1106664046, now seen corresponding path program 1 times [2020-04-18 02:21:44,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748889737] [2020-04-18 02:21:44,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:44,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748889737] [2020-04-18 02:21:44,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:44,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:21:44,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113760654] [2020-04-18 02:21:44,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:21:44,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:44,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:21:44,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:21:44,373 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-04-18 02:21:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:44,395 INFO L93 Difference]: Finished difference Result 230 states and 596 transitions. [2020-04-18 02:21:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:21:44,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:21:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:44,397 INFO L225 Difference]: With dead ends: 230 [2020-04-18 02:21:44,398 INFO L226 Difference]: Without dead ends: 104 [2020-04-18 02:21:44,398 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:21:44,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-04-18 02:21:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-04-18 02:21:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-04-18 02:21:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-04-18 02:21:44,404 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 11 [2020-04-18 02:21:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,405 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-04-18 02:21:44,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:21:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-04-18 02:21:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:21:44,406 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,406 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,407 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,407 INFO L82 PathProgramCache]: Analyzing trace with hash -132602240, now seen corresponding path program 1 times [2020-04-18 02:21:44,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951651646] [2020-04-18 02:21:44,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:44,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951651646] [2020-04-18 02:21:44,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:44,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:21:44,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596370592] [2020-04-18 02:21:44,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:21:44,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:44,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:21:44,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:21:44,447 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-04-18 02:21:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:44,470 INFO L93 Difference]: Finished difference Result 158 states and 375 transitions. [2020-04-18 02:21:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:21:44,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-04-18 02:21:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:44,472 INFO L225 Difference]: With dead ends: 158 [2020-04-18 02:21:44,472 INFO L226 Difference]: Without dead ends: 104 [2020-04-18 02:21:44,473 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:21:44,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-04-18 02:21:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-04-18 02:21:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-04-18 02:21:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 244 transitions. [2020-04-18 02:21:44,479 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 244 transitions. Word has length 13 [2020-04-18 02:21:44,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,479 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 244 transitions. [2020-04-18 02:21:44,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:21:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 244 transitions. [2020-04-18 02:21:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:21:44,480 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,481 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,481 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 2 times [2020-04-18 02:21:44,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465936002] [2020-04-18 02:21:44,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:44,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465936002] [2020-04-18 02:21:44,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:44,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:21:44,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40260233] [2020-04-18 02:21:44,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:21:44,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:44,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:21:44,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:21:44,589 INFO L87 Difference]: Start difference. First operand 104 states and 244 transitions. Second operand 4 states. [2020-04-18 02:21:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:44,628 INFO L93 Difference]: Finished difference Result 127 states and 275 transitions. [2020-04-18 02:21:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:21:44,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-04-18 02:21:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:44,629 INFO L225 Difference]: With dead ends: 127 [2020-04-18 02:21:44,629 INFO L226 Difference]: Without dead ends: 87 [2020-04-18 02:21:44,630 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:21:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-04-18 02:21:44,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-04-18 02:21:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-04-18 02:21:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 183 transitions. [2020-04-18 02:21:44,637 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 183 transitions. Word has length 13 [2020-04-18 02:21:44,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,637 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 183 transitions. [2020-04-18 02:21:44,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:21:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 183 transitions. [2020-04-18 02:21:44,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:21:44,638 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,638 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,638 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,639 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-04-18 02:21:44,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676345405] [2020-04-18 02:21:44,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:44,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:44,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676345405] [2020-04-18 02:21:44,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:44,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:21:44,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823238629] [2020-04-18 02:21:44,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:21:44,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:44,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:21:44,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:21:44,754 INFO L87 Difference]: Start difference. First operand 87 states and 183 transitions. Second operand 5 states. [2020-04-18 02:21:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:44,805 INFO L93 Difference]: Finished difference Result 90 states and 175 transitions. [2020-04-18 02:21:44,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:21:44,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 02:21:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:44,806 INFO L225 Difference]: With dead ends: 90 [2020-04-18 02:21:44,806 INFO L226 Difference]: Without dead ends: 65 [2020-04-18 02:21:44,807 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:21:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-04-18 02:21:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-04-18 02:21:44,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-04-18 02:21:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 119 transitions. [2020-04-18 02:21:44,810 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 119 transitions. Word has length 14 [2020-04-18 02:21:44,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,810 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 119 transitions. [2020-04-18 02:21:44,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:21:44,811 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 119 transitions. [2020-04-18 02:21:44,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:21:44,811 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,811 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,812 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,812 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-04-18 02:21:44,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243408813] [2020-04-18 02:21:44,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:44,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243408813] [2020-04-18 02:21:44,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:44,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:21:44,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948428896] [2020-04-18 02:21:44,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:21:44,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:44,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:21:44,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:21:44,915 INFO L87 Difference]: Start difference. First operand 65 states and 119 transitions. Second operand 6 states. [2020-04-18 02:21:44,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:44,977 INFO L93 Difference]: Finished difference Result 62 states and 111 transitions. [2020-04-18 02:21:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:21:44,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-04-18 02:21:44,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:44,978 INFO L225 Difference]: With dead ends: 62 [2020-04-18 02:21:44,979 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 02:21:44,979 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:21:44,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 02:21:44,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 02:21:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 02:21:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 97 transitions. [2020-04-18 02:21:44,982 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 97 transitions. Word has length 15 [2020-04-18 02:21:44,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:44,982 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 97 transitions. [2020-04-18 02:21:44,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:21:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-04-18 02:21:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:21:44,983 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:44,983 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:44,983 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:44,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:44,984 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-04-18 02:21:44,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:44,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110994882] [2020-04-18 02:21:44,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:45,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110994882] [2020-04-18 02:21:45,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:45,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:21:45,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956416847] [2020-04-18 02:21:45,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:21:45,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:45,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:21:45,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:21:45,018 INFO L87 Difference]: Start difference. First operand 54 states and 97 transitions. Second operand 4 states. [2020-04-18 02:21:45,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:45,034 INFO L93 Difference]: Finished difference Result 63 states and 110 transitions. [2020-04-18 02:21:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:21:45,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:21:45,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:45,035 INFO L225 Difference]: With dead ends: 63 [2020-04-18 02:21:45,035 INFO L226 Difference]: Without dead ends: 35 [2020-04-18 02:21:45,036 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:21:45,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-04-18 02:21:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-04-18 02:21:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-04-18 02:21:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-04-18 02:21:45,038 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-04-18 02:21:45,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:45,039 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-04-18 02:21:45,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:21:45,039 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-04-18 02:21:45,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:21:45,040 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:45,040 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:45,040 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:45,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:45,040 INFO L82 PathProgramCache]: Analyzing trace with hash 361560856, now seen corresponding path program 2 times [2020-04-18 02:21:45,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:45,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046907061] [2020-04-18 02:21:45,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:45,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:45,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046907061] [2020-04-18 02:21:45,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:45,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:21:45,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852907031] [2020-04-18 02:21:45,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:21:45,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:45,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:21:45,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:21:45,072 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-04-18 02:21:45,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:45,089 INFO L93 Difference]: Finished difference Result 48 states and 77 transitions. [2020-04-18 02:21:45,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:21:45,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:21:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:45,090 INFO L225 Difference]: With dead ends: 48 [2020-04-18 02:21:45,090 INFO L226 Difference]: Without dead ends: 30 [2020-04-18 02:21:45,090 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:21:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-04-18 02:21:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-04-18 02:21:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-04-18 02:21:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-04-18 02:21:45,092 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-04-18 02:21:45,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:45,092 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-04-18 02:21:45,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:21:45,092 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-04-18 02:21:45,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:21:45,093 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:21:45,093 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:21:45,093 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:21:45,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:21:45,094 INFO L82 PathProgramCache]: Analyzing trace with hash -550831814, now seen corresponding path program 3 times [2020-04-18 02:21:45,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:21:45,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446776001] [2020-04-18 02:21:45,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:21:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:21:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:21:45,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446776001] [2020-04-18 02:21:45,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:21:45,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:21:45,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950199731] [2020-04-18 02:21:45,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:21:45,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:21:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:21:45,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:21:45,130 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-04-18 02:21:45,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:21:45,144 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-04-18 02:21:45,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:21:45,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:21:45,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:21:45,146 INFO L225 Difference]: With dead ends: 29 [2020-04-18 02:21:45,146 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:21:45,147 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:21:45,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:21:45,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:21:45,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:21:45,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:21:45,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-18 02:21:45,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:21:45,148 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:21:45,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:21:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:21:45,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:21:45,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:21:45 BasicIcfg [2020-04-18 02:21:45,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:21:45,155 INFO L168 Benchmark]: Toolchain (without parser) took 4654.90 ms. Allocated memory was 136.3 MB in the beginning and 253.2 MB in the end (delta: 116.9 MB). Free memory was 99.5 MB in the beginning and 180.5 MB in the end (delta: -81.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-04-18 02:21:45,155 INFO L168 Benchmark]: CDTParser took 1.35 ms. Allocated memory is still 136.3 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:21:45,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.39 ms. Allocated memory was 136.3 MB in the beginning and 199.2 MB in the end (delta: 62.9 MB). Free memory was 97.7 MB in the beginning and 155.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-04-18 02:21:45,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.97 ms. Allocated memory is still 199.2 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:21:45,158 INFO L168 Benchmark]: Boogie Preprocessor took 26.34 ms. Allocated memory is still 199.2 MB. Free memory was 153.9 MB in the beginning and 151.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:21:45,159 INFO L168 Benchmark]: RCFGBuilder took 432.05 ms. Allocated memory is still 199.2 MB. Free memory was 151.9 MB in the beginning and 130.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:21:45,159 INFO L168 Benchmark]: TraceAbstraction took 3444.68 ms. Allocated memory was 199.2 MB in the beginning and 253.2 MB in the end (delta: 54.0 MB). Free memory was 129.1 MB in the beginning and 180.5 MB in the end (delta: -51.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-04-18 02:21:45,163 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35 ms. Allocated memory is still 136.3 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.39 ms. Allocated memory was 136.3 MB in the beginning and 199.2 MB in the end (delta: 62.9 MB). Free memory was 97.7 MB in the beginning and 155.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.97 ms. Allocated memory is still 199.2 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.34 ms. Allocated memory is still 199.2 MB. Free memory was 153.9 MB in the beginning and 151.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.05 ms. Allocated memory is still 199.2 MB. Free memory was 151.9 MB in the beginning and 130.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3444.68 ms. Allocated memory was 199.2 MB in the beginning and 253.2 MB in the end (delta: 54.0 MB). Free memory was 129.1 MB in the beginning and 180.5 MB in the end (delta: -51.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 214 SDtfs, 159 SDslu, 247 SDs, 0 SdLazy, 138 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 4629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...