/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:45:36,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:45:36,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:45:36,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:45:36,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:45:36,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:45:36,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:45:36,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:45:36,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:45:36,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:45:36,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:45:36,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:45:36,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:45:36,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:45:36,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:45:36,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:45:36,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:45:36,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:45:36,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:45:36,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:45:36,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:45:36,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:45:36,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:45:36,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:45:36,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:45:36,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:45:36,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:45:36,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:45:36,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:45:36,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:45:36,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:45:36,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:45:36,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:45:36,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:45:36,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:45:36,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:45:36,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:45:36,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:45:36,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:45:36,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:45:36,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:45:36,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:45:36,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:45:36,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:45:36,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:45:36,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:45:36,331 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:45:36,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:45:36,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:45:36,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:45:36,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:45:36,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:45:36,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:45:36,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:45:36,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:45:36,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:45:36,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:45:36,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:45:36,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:45:36,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:45:36,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:45:36,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:45:36,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:45:36,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:45:36,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:45:36,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:45:36,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:45:36,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:45:36,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:45:36,338 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:45:36,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:45:36,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:45:36,339 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:45:36,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:45:36,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:45:36,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:45:36,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:45:36,654 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:45:36,655 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-16 13:45:36,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f264af08a/94225f90664c4d0b93a862221a6297d7/FLAG65151f64d [2020-10-16 13:45:37,276 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:45:37,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-16 13:45:37,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f264af08a/94225f90664c4d0b93a862221a6297d7/FLAG65151f64d [2020-10-16 13:45:37,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f264af08a/94225f90664c4d0b93a862221a6297d7 [2020-10-16 13:45:37,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:45:37,537 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:45:37,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:37,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:45:37,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:45:37,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:37" (1/1) ... [2020-10-16 13:45:37,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765183e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:37, skipping insertion in model container [2020-10-16 13:45:37,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:37" (1/1) ... [2020-10-16 13:45:37,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:45:37,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:45:38,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:38,175 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:45:38,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:38,319 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:45:38,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38 WrapperNode [2020-10-16 13:45:38,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:38,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:38,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:45:38,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:45:38,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:38,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:45:38,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:45:38,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:45:38,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... [2020-10-16 13:45:38,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:45:38,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:45:38,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:45:38,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:45:38,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:45:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:45:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:45:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:45:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:45:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:45:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:45:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:45:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:45:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:45:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:45:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 13:45:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 13:45:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:45:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:45:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:45:38,476 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:45:38,899 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:45:38,900 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:45:38,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:38 BoogieIcfgContainer [2020-10-16 13:45:38,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:45:38,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:45:38,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:45:38,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:45:38,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:45:37" (1/3) ... [2020-10-16 13:45:38,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f08f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:38, skipping insertion in model container [2020-10-16 13:45:38,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:38" (2/3) ... [2020-10-16 13:45:38,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f08f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:38, skipping insertion in model container [2020-10-16 13:45:38,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:38" (3/3) ... [2020-10-16 13:45:38,913 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-10-16 13:45:38,926 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:45:38,926 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:45:38,935 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:45:38,936 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:45:38,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,969 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,969 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,970 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,970 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,971 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,971 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,972 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,972 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,973 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,973 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,974 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,975 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,975 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,975 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,976 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,979 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,984 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,984 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,984 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,996 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,996 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:38,999 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:39,000 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:39,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:39,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:39,002 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:45:39,016 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 13:45:39,036 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:45:39,036 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:45:39,036 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:45:39,036 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:45:39,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:45:39,037 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:45:39,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:45:39,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:45:39,050 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:45:39,050 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:39,053 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:39,054 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:39,104 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-16 13:45:39,104 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:45:39,110 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-16 13:45:39,113 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-16 13:45:40,500 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-16 13:45:40,500 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-16 13:45:40,508 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-16 13:45:40,564 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-16 13:45:40,567 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-16 13:45:40,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:45:40,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:40,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:40,579 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:40,586 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-16 13:45:40,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:40,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7996809] [2020-10-16 13:45:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:40,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7996809] [2020-10-16 13:45:40,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:40,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:40,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1632295317] [2020-10-16 13:45:40,799 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:40,803 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:40,820 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 13:45:40,821 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:40,826 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:40,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:45:40,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:40,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:45:40,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:45:40,848 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-16 13:45:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:40,892 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-16 13:45:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:45:40,894 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-16 13:45:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:40,919 INFO L225 Difference]: With dead ends: 850 [2020-10-16 13:45:40,919 INFO L226 Difference]: Without dead ends: 706 [2020-10-16 13:45:40,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:45:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-16 13:45:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-16 13:45:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-16 13:45:41,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-16 13:45:41,071 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-16 13:45:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:41,072 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-16 13:45:41,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:45:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-16 13:45:41,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:45:41,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:41,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:41,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:45:41,076 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:41,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:41,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-16 13:45:41,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:41,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396607797] [2020-10-16 13:45:41,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:41,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:41,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396607797] [2020-10-16 13:45:41,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:41,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:41,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [671917832] [2020-10-16 13:45:41,235 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:41,238 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:41,240 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-16 13:45:41,240 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:41,241 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:41,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:41,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:41,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:41,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:41,243 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-16 13:45:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:41,285 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-16 13:45:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:41,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:45:41,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:41,291 INFO L225 Difference]: With dead ends: 778 [2020-10-16 13:45:41,291 INFO L226 Difference]: Without dead ends: 634 [2020-10-16 13:45:41,292 INFO L677 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 [2020-10-16 13:45:41,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-16 13:45:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-16 13:45:41,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-16 13:45:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-16 13:45:41,319 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-16 13:45:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:41,320 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-16 13:45:41,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-16 13:45:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:45:41,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:41,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:41,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:45:41,324 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:41,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-16 13:45:41,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:41,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60284475] [2020-10-16 13:45:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:41,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60284475] [2020-10-16 13:45:41,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:41,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:41,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [862247559] [2020-10-16 13:45:41,408 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:41,409 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:41,411 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-16 13:45:41,412 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:41,471 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:41,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:41,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:41,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:41,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:41,473 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-10-16 13:45:41,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:41,562 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-10-16 13:45:41,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:45:41,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:45:41,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:41,566 INFO L225 Difference]: With dead ends: 814 [2020-10-16 13:45:41,567 INFO L226 Difference]: Without dead ends: 394 [2020-10-16 13:45:41,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:41,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-16 13:45:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-16 13:45:41,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-16 13:45:41,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-10-16 13:45:41,582 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-10-16 13:45:41,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:41,583 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-10-16 13:45:41,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:41,583 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-10-16 13:45:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:45:41,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:41,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:41,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:45:41,585 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:41,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:41,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-10-16 13:45:41,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:41,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909847694] [2020-10-16 13:45:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:41,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909847694] [2020-10-16 13:45:41,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:41,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:41,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1825596784] [2020-10-16 13:45:41,658 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:41,661 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:41,664 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-10-16 13:45:41,665 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:41,680 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:41,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:41,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:41,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:41,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:41,681 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-10-16 13:45:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:41,706 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-10-16 13:45:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:41,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:45:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:41,710 INFO L225 Difference]: With dead ends: 430 [2020-10-16 13:45:41,710 INFO L226 Difference]: Without dead ends: 358 [2020-10-16 13:45:41,710 INFO L677 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 [2020-10-16 13:45:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-16 13:45:41,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-16 13:45:41,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-16 13:45:41,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-10-16 13:45:41,725 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-10-16 13:45:41,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:41,725 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-10-16 13:45:41,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-10-16 13:45:41,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:45:41,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:41,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:41,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:45:41,727 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:41,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:41,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-10-16 13:45:41,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:41,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047678626] [2020-10-16 13:45:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:41,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047678626] [2020-10-16 13:45:41,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:41,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:41,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [820738702] [2020-10-16 13:45:41,802 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:41,803 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:41,807 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-10-16 13:45:41,807 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:41,862 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:41,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:41,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:41,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:41,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:41,863 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-10-16 13:45:41,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:41,922 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-10-16 13:45:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:45:41,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 13:45:41,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:41,925 INFO L225 Difference]: With dead ends: 496 [2020-10-16 13:45:41,925 INFO L226 Difference]: Without dead ends: 262 [2020-10-16 13:45:41,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:41,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-16 13:45:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-16 13:45:41,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-16 13:45:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-16 13:45:41,935 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-16 13:45:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:41,936 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-16 13:45:41,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-16 13:45:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:45:41,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:41,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:41,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:45:41,938 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:41,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:41,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-16 13:45:41,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:41,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847031441] [2020-10-16 13:45:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:41,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847031441] [2020-10-16 13:45:41,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:41,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:41,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1674106886] [2020-10-16 13:45:41,994 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:41,996 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:42,003 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-10-16 13:45:42,003 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:42,024 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,048 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,063 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,080 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,092 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,124 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,135 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,152 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,161 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9912#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-16 13:45:42,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:42,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:42,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:42,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:42,163 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 5 states. [2020-10-16 13:45:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:42,232 INFO L93 Difference]: Finished difference Result 263 states and 689 transitions. [2020-10-16 13:45:42,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:42,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 13:45:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:42,234 INFO L225 Difference]: With dead ends: 263 [2020-10-16 13:45:42,234 INFO L226 Difference]: Without dead ends: 182 [2020-10-16 13:45:42,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:42,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-16 13:45:42,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-16 13:45:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-16 13:45:42,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-16 13:45:42,241 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 15 [2020-10-16 13:45:42,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:42,241 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-16 13:45:42,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:42,242 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-16 13:45:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:45:42,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:42,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:42,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:45:42,243 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:42,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:42,244 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-16 13:45:42,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:42,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036351712] [2020-10-16 13:45:42,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:42,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:42,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036351712] [2020-10-16 13:45:42,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:42,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 13:45:42,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1381451469] [2020-10-16 13:45:42,333 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:42,335 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:42,343 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-10-16 13:45:42,344 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:42,353 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,371 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,388 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,495 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10550#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:45:42,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:45:42,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:42,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:45:42,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:42,496 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 7 states. [2020-10-16 13:45:42,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:42,573 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-16 13:45:42,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:42,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-16 13:45:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:42,575 INFO L225 Difference]: With dead ends: 165 [2020-10-16 13:45:42,575 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 13:45:42,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 13:45:42,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-16 13:45:42,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-16 13:45:42,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-16 13:45:42,580 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-16 13:45:42,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:42,581 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-16 13:45:42,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:45:42,581 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-16 13:45:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 13:45:42,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:42,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:42,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:45:42,582 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:42,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:42,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-16 13:45:42,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:42,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175021526] [2020-10-16 13:45:42,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:42,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175021526] [2020-10-16 13:45:42,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:42,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 13:45:42,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2145211889] [2020-10-16 13:45:42,663 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:42,666 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:42,678 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-10-16 13:45:42,679 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:42,688 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:42,795 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10989#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:45:42,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 13:45:42,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:42,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 13:45:42,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:42,797 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 8 states. [2020-10-16 13:45:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:42,871 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-16 13:45:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 13:45:42,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-16 13:45:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:42,872 INFO L225 Difference]: With dead ends: 121 [2020-10-16 13:45:42,873 INFO L226 Difference]: Without dead ends: 112 [2020-10-16 13:45:42,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 13:45:42,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-16 13:45:42,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-16 13:45:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-16 13:45:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-16 13:45:42,877 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-16 13:45:42,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:42,877 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-16 13:45:42,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 13:45:42,878 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-16 13:45:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 13:45:42,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:42,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:42,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:45:42,879 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:42,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:42,879 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-16 13:45:42,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:42,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523909738] [2020-10-16 13:45:42,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:42,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:42,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523909738] [2020-10-16 13:45:42,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:42,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:42,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1578832729] [2020-10-16 13:45:42,935 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:42,938 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:42,949 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 77 transitions. [2020-10-16 13:45:42,950 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:43,025 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:43,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:43,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:43,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:43,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:43,027 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-16 13:45:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:43,061 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-16 13:45:43,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:43,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 13:45:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:43,062 INFO L225 Difference]: With dead ends: 146 [2020-10-16 13:45:43,063 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 13:45:43,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:43,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 13:45:43,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 13:45:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 13:45:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-16 13:45:43,066 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-16 13:45:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:43,066 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-16 13:45:43,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:43,067 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-16 13:45:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 13:45:43,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:43,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:43,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:45:43,068 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:43,069 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-16 13:45:43,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:43,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070367512] [2020-10-16 13:45:43,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:43,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070367512] [2020-10-16 13:45:43,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:43,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:43,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [893697254] [2020-10-16 13:45:43,127 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:43,130 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:43,161 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-10-16 13:45:43,161 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:43,171 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:43,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:43,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:43,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:43,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:43,173 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-16 13:45:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:43,200 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-16 13:45:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:43,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 13:45:43,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:43,201 INFO L225 Difference]: With dead ends: 51 [2020-10-16 13:45:43,201 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:45:43,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:45:43,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:45:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:45:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:45:43,203 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-16 13:45:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:43,203 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:45:43,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:45:43,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:45:43,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 13:45:43,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:45:43 BasicIcfg [2020-10-16 13:45:43,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:45:43,211 INFO L168 Benchmark]: Toolchain (without parser) took 5673.52 ms. Allocated memory was 141.6 MB in the beginning and 281.5 MB in the end (delta: 140.0 MB). Free memory was 102.8 MB in the beginning and 237.4 MB in the end (delta: -134.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:43,211 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:45:43,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.44 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 162.2 MB in the end (delta: -59.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:43,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.44 ms. Allocated memory is still 205.0 MB. Free memory was 162.2 MB in the beginning and 160.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:43,221 INFO L168 Benchmark]: Boogie Preprocessor took 26.12 ms. Allocated memory is still 205.0 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:43,221 INFO L168 Benchmark]: RCFGBuilder took 503.01 ms. Allocated memory is still 205.0 MB. Free memory was 158.3 MB in the beginning and 134.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:43,223 INFO L168 Benchmark]: TraceAbstraction took 4303.22 ms. Allocated memory was 205.0 MB in the beginning and 281.5 MB in the end (delta: 76.5 MB). Free memory was 133.8 MB in the beginning and 237.4 MB in the end (delta: -103.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:45:43,232 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.44 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 162.2 MB in the end (delta: -59.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.44 ms. Allocated memory is still 205.0 MB. Free memory was 162.2 MB in the beginning and 160.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.12 ms. Allocated memory is still 205.0 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 503.01 ms. Allocated memory is still 205.0 MB. Free memory was 158.3 MB in the beginning and 134.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4303.22 ms. Allocated memory was 205.0 MB in the beginning and 281.5 MB in the end (delta: 76.5 MB). Free memory was 133.8 MB in the beginning and 237.4 MB in the end (delta: -103.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 959 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 245 SDtfs, 258 SDslu, 466 SDs, 0 SdLazy, 201 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 112 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 6535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...