/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:06:52,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:06:52,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:06:52,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:06:52,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:06:52,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:06:52,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:06:52,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:06:52,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:06:52,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:06:52,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:06:52,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:06:52,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:06:52,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:06:52,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:06:52,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:06:52,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:06:52,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:06:52,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:06:52,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:06:52,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:06:52,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:06:52,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:06:52,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:06:52,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:06:52,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:06:52,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:06:52,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:06:52,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:06:52,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:06:52,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:06:52,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:06:52,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:06:52,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:06:52,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:06:52,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:06:52,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:06:52,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:06:52,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:06:52,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:06:52,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:06:52,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:06:52,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:06:52,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:06:52,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:06:52,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:06:52,601 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:06:52,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:06:52,601 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:06:52,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:06:52,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:06:52,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:06:52,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:06:52,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:06:52,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:06:52,604 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:06:52,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:06:52,604 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:06:52,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:06:52,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:06:52,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:06:52,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:06:52,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:06:52,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:06:52,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:06:52,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:06:52,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:06:52,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:06:52,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:06:52,607 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:06:52,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:06:52,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:06:52,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:06:52,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:06:52,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:06:52,925 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:06:52,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-21 23:06:52,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818e5b486/662a222c911e4065a8781ba381906259/FLAG87ee0a69f [2020-10-21 23:06:53,559 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:06:53,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-21 23:06:53,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818e5b486/662a222c911e4065a8781ba381906259/FLAG87ee0a69f [2020-10-21 23:06:53,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818e5b486/662a222c911e4065a8781ba381906259 [2020-10-21 23:06:53,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:06:53,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:06:53,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:06:53,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:06:53,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:06:53,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:06:53" (1/1) ... [2020-10-21 23:06:53,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbe399e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:53, skipping insertion in model container [2020-10-21 23:06:53,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:06:53" (1/1) ... [2020-10-21 23:06:53,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:06:53,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:06:54,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:06:54,433 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:06:54,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:06:54,587 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:06:54,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54 WrapperNode [2020-10-21 23:06:54,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:06:54,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:06:54,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:06:54,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:06:54,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:06:54,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:06:54,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:06:54,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:06:54,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (1/1) ... [2020-10-21 23:06:54,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:06:54,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:06:54,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:06:54,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:06:54,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (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 [2020-10-21 23:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:06:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:06:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:06:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:06:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:06:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:06:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-21 23:06:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-21 23:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:06:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:06:54,741 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:06:55,149 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:06:55,150 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:06:55,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:06:55 BoogieIcfgContainer [2020-10-21 23:06:55,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:06:55,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:06:55,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:06:55,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:06:55,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:06:53" (1/3) ... [2020-10-21 23:06:55,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a99747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:06:55, skipping insertion in model container [2020-10-21 23:06:55,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:54" (2/3) ... [2020-10-21 23:06:55,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a99747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:06:55, skipping insertion in model container [2020-10-21 23:06:55,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:06:55" (3/3) ... [2020-10-21 23:06:55,170 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2020-10-21 23:06:55,184 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:06:55,184 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:06:55,192 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:06:55,193 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:06:55,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,254 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,258 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,261 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,261 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,262 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,262 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,262 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,264 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,264 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,264 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,265 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,265 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,266 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,270 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,271 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,277 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,278 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,278 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,278 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:55,287 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:06:55,302 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 23:06:55,330 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:06:55,330 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:06:55,330 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:06:55,330 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:06:55,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:06:55,331 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:06:55,331 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:06:55,331 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:06:55,344 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:06:55,345 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-21 23:06:55,347 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-21 23:06:55,348 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-10-21 23:06:55,404 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-10-21 23:06:55,405 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:06:55,411 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-21 23:06:55,415 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-21 23:06:56,731 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-21 23:06:57,241 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 23:06:57,514 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-21 23:06:57,569 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-10-21 23:06:57,569 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-10-21 23:06:57,576 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-21 23:06:57,625 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-21 23:06:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-21 23:06:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:06:57,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:57,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:57,639 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:57,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:57,645 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-10-21 23:06:57,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:57,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563923314] [2020-10-21 23:06:57,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:57,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563923314] [2020-10-21 23:06:57,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:57,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:06:57,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815622265] [2020-10-21 23:06:57,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:06:57,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:57,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:06:57,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:57,920 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-21 23:06:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:57,997 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-21 23:06:57,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:06:58,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 23:06:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:58,044 INFO L225 Difference]: With dead ends: 670 [2020-10-21 23:06:58,044 INFO L226 Difference]: Without dead ends: 526 [2020-10-21 23:06:58,046 INFO L677 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 [2020-10-21 23:06:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-21 23:06:58,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-21 23:06:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-21 23:06:58,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-21 23:06:58,163 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-21 23:06:58,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:58,164 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-21 23:06:58,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:06:58,165 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-21 23:06:58,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:06:58,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:58,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:58,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:06:58,170 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:58,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:58,170 INFO L82 PathProgramCache]: Analyzing trace with hash -579920157, now seen corresponding path program 1 times [2020-10-21 23:06:58,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:58,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574082769] [2020-10-21 23:06:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:58,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:58,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574082769] [2020-10-21 23:06:58,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:58,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:58,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257467039] [2020-10-21 23:06:58,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:58,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:58,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:58,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:58,288 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-21 23:06:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:58,320 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-21 23:06:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:58,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 23:06:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:58,324 INFO L225 Difference]: With dead ends: 682 [2020-10-21 23:06:58,325 INFO L226 Difference]: Without dead ends: 394 [2020-10-21 23:06:58,326 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 [2020-10-21 23:06:58,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-21 23:06:58,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-21 23:06:58,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-21 23:06:58,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-21 23:06:58,347 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-21 23:06:58,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:58,348 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-21 23:06:58,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:58,348 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-21 23:06:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:06:58,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:58,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:58,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:06:58,351 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:58,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:58,352 INFO L82 PathProgramCache]: Analyzing trace with hash -536731131, now seen corresponding path program 1 times [2020-10-21 23:06:58,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:58,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992887217] [2020-10-21 23:06:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:58,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:58,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992887217] [2020-10-21 23:06:58,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:58,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:06:58,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857597809] [2020-10-21 23:06:58,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:06:58,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:58,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:06:58,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:58,421 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-21 23:06:58,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:58,431 INFO L93 Difference]: Finished difference Result 376 states and 1155 transitions. [2020-10-21 23:06:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:06:58,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-21 23:06:58,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:58,435 INFO L225 Difference]: With dead ends: 376 [2020-10-21 23:06:58,435 INFO L226 Difference]: Without dead ends: 376 [2020-10-21 23:06:58,436 INFO L677 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 [2020-10-21 23:06:58,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-10-21 23:06:58,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-10-21 23:06:58,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-21 23:06:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1155 transitions. [2020-10-21 23:06:58,452 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1155 transitions. Word has length 12 [2020-10-21 23:06:58,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:58,452 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1155 transitions. [2020-10-21 23:06:58,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:06:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1155 transitions. [2020-10-21 23:06:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:06:58,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:58,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:58,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:06:58,456 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:58,456 INFO L82 PathProgramCache]: Analyzing trace with hash 553894509, now seen corresponding path program 1 times [2020-10-21 23:06:58,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:58,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796456244] [2020-10-21 23:06:58,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:58,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796456244] [2020-10-21 23:06:58,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:58,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:58,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390598220] [2020-10-21 23:06:58,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:58,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:58,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:58,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:58,561 INFO L87 Difference]: Start difference. First operand 376 states and 1155 transitions. Second operand 4 states. [2020-10-21 23:06:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:58,600 INFO L93 Difference]: Finished difference Result 526 states and 1582 transitions. [2020-10-21 23:06:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:58,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 23:06:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:58,603 INFO L225 Difference]: With dead ends: 526 [2020-10-21 23:06:58,603 INFO L226 Difference]: Without dead ends: 286 [2020-10-21 23:06:58,603 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 [2020-10-21 23:06:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-21 23:06:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-21 23:06:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-21 23:06:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-10-21 23:06:58,614 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-10-21 23:06:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:58,615 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-10-21 23:06:58,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:58,615 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-10-21 23:06:58,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:06:58,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:58,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:58,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:06:58,617 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:58,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:58,617 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-10-21 23:06:58,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:58,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303140987] [2020-10-21 23:06:58,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:58,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303140987] [2020-10-21 23:06:58,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:58,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:58,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655406384] [2020-10-21 23:06:58,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:58,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:58,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:58,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:58,691 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 4 states. [2020-10-21 23:06:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:58,745 INFO L93 Difference]: Finished difference Result 355 states and 990 transitions. [2020-10-21 23:06:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:06:58,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-21 23:06:58,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:58,748 INFO L225 Difference]: With dead ends: 355 [2020-10-21 23:06:58,748 INFO L226 Difference]: Without dead ends: 262 [2020-10-21 23:06:58,748 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 [2020-10-21 23:06:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-21 23:06:58,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-21 23:06:58,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-21 23:06:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 738 transitions. [2020-10-21 23:06:58,757 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 738 transitions. Word has length 14 [2020-10-21 23:06:58,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:58,757 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 738 transitions. [2020-10-21 23:06:58,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 738 transitions. [2020-10-21 23:06:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:06:58,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:58,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:58,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:06:58,759 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:58,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1456913458, now seen corresponding path program 1 times [2020-10-21 23:06:58,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:58,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693534675] [2020-10-21 23:06:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:58,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693534675] [2020-10-21 23:06:58,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:58,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:58,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141434676] [2020-10-21 23:06:58,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:06:58,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:58,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:06:58,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:58,818 INFO L87 Difference]: Start difference. First operand 262 states and 738 transitions. Second operand 5 states. [2020-10-21 23:06:58,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:58,873 INFO L93 Difference]: Finished difference Result 283 states and 734 transitions. [2020-10-21 23:06:58,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:06:58,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 23:06:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:58,875 INFO L225 Difference]: With dead ends: 283 [2020-10-21 23:06:58,875 INFO L226 Difference]: Without dead ends: 208 [2020-10-21 23:06:58,876 INFO L677 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 [2020-10-21 23:06:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-21 23:06:58,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-21 23:06:58,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-21 23:06:58,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-10-21 23:06:58,883 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 15 [2020-10-21 23:06:58,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:58,884 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-10-21 23:06:58,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:06:58,884 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-10-21 23:06:58,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:06:58,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:58,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:58,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:06:58,886 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-10-21 23:06:58,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:58,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273348549] [2020-10-21 23:06:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:58,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273348549] [2020-10-21 23:06:58,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:58,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:06:58,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810234093] [2020-10-21 23:06:58,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:06:58,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:58,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:06:58,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:06:58,947 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 6 states. [2020-10-21 23:06:59,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:59,008 INFO L93 Difference]: Finished difference Result 201 states and 486 transitions. [2020-10-21 23:06:59,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:06:59,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-21 23:06:59,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:59,010 INFO L225 Difference]: With dead ends: 201 [2020-10-21 23:06:59,010 INFO L226 Difference]: Without dead ends: 163 [2020-10-21 23:06:59,010 INFO L677 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 [2020-10-21 23:06:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-21 23:06:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-10-21 23:06:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-21 23:06:59,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 394 transitions. [2020-10-21 23:06:59,015 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 394 transitions. Word has length 16 [2020-10-21 23:06:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:59,016 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 394 transitions. [2020-10-21 23:06:59,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:06:59,016 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 394 transitions. [2020-10-21 23:06:59,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:59,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:59,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:59,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:06:59,017 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:59,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:59,018 INFO L82 PathProgramCache]: Analyzing trace with hash -999056211, now seen corresponding path program 1 times [2020-10-21 23:06:59,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:59,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418573525] [2020-10-21 23:06:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:59,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418573525] [2020-10-21 23:06:59,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:59,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:59,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539607495] [2020-10-21 23:06:59,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:59,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:59,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:59,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:59,057 INFO L87 Difference]: Start difference. First operand 163 states and 394 transitions. Second operand 4 states. [2020-10-21 23:06:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:59,083 INFO L93 Difference]: Finished difference Result 263 states and 604 transitions. [2020-10-21 23:06:59,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:06:59,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:06:59,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:59,085 INFO L225 Difference]: With dead ends: 263 [2020-10-21 23:06:59,085 INFO L226 Difference]: Without dead ends: 127 [2020-10-21 23:06:59,086 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 [2020-10-21 23:06:59,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-21 23:06:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-21 23:06:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-21 23:06:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-21 23:06:59,091 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-21 23:06:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:59,091 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-21 23:06:59,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-21 23:06:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:59,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:59,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:59,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:06:59,093 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:59,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:59,093 INFO L82 PathProgramCache]: Analyzing trace with hash 833653032, now seen corresponding path program 1 times [2020-10-21 23:06:59,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:59,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455286035] [2020-10-21 23:06:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:59,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455286035] [2020-10-21 23:06:59,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:59,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:59,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706748451] [2020-10-21 23:06:59,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:59,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:59,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:59,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:59,136 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 4 states. [2020-10-21 23:06:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:59,158 INFO L93 Difference]: Finished difference Result 142 states and 293 transitions. [2020-10-21 23:06:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:59,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:06:59,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:59,159 INFO L225 Difference]: With dead ends: 142 [2020-10-21 23:06:59,159 INFO L226 Difference]: Without dead ends: 87 [2020-10-21 23:06:59,160 INFO L677 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 [2020-10-21 23:06:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-21 23:06:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2020-10-21 23:06:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-21 23:06:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 160 transitions. [2020-10-21 23:06:59,163 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 160 transitions. Word has length 18 [2020-10-21 23:06:59,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:59,164 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 160 transitions. [2020-10-21 23:06:59,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:59,164 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 160 transitions. [2020-10-21 23:06:59,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:59,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:59,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:59,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 23:06:59,166 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:59,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:59,167 INFO L82 PathProgramCache]: Analyzing trace with hash 721666079, now seen corresponding path program 2 times [2020-10-21 23:06:59,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:59,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509426024] [2020-10-21 23:06:59,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:59,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509426024] [2020-10-21 23:06:59,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:59,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 23:06:59,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089127851] [2020-10-21 23:06:59,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 23:06:59,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:59,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 23:06:59,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:06:59,241 INFO L87 Difference]: Start difference. First operand 86 states and 160 transitions. Second operand 7 states. [2020-10-21 23:06:59,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:59,293 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-10-21 23:06:59,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:06:59,293 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-21 23:06:59,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:59,294 INFO L225 Difference]: With dead ends: 81 [2020-10-21 23:06:59,294 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:06:59,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:06:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:06:59,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:06:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:06:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:06:59,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 23:06:59,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:59,296 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:06:59,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 23:06:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:06:59,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:06:59,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 23:06:59,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:06:59 BasicIcfg [2020-10-21 23:06:59,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:06:59,304 INFO L168 Benchmark]: Toolchain (without parser) took 5441.23 ms. Allocated memory was 140.5 MB in the beginning and 282.1 MB in the end (delta: 141.6 MB). Free memory was 100.5 MB in the beginning and 154.6 MB in the end (delta: -54.1 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:59,305 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:06:59,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.92 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 99.7 MB in the beginning and 158.2 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:59,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.86 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:59,307 INFO L168 Benchmark]: Boogie Preprocessor took 28.85 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 154.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:59,308 INFO L168 Benchmark]: RCFGBuilder took 481.27 ms. Allocated memory is still 202.9 MB. Free memory was 154.3 MB in the beginning and 128.7 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:59,309 INFO L168 Benchmark]: TraceAbstraction took 4144.51 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 128.1 MB in the beginning and 154.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:59,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.92 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 99.7 MB in the beginning and 158.2 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.86 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.85 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 154.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 481.27 ms. Allocated memory is still 202.9 MB. Free memory was 154.3 MB in the beginning and 128.7 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4144.51 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 128.1 MB in the beginning and 154.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 MoverChecksTotal - PositiveResult [Line: 17]: 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, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 218 SDtfs, 241 SDslu, 328 SDs, 0 SdLazy, 161 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 10 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 5745 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...