/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:50:08,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:50:08,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:50:08,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:50:08,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:50:08,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:50:08,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:50:08,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:50:08,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:50:08,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:50:08,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:50:08,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:50:08,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:50:08,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:50:08,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:50:08,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:50:08,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:50:08,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:50:08,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:50:08,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:50:08,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:50:08,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:50:08,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:50:08,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:50:08,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 03:50:08,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 03:50:08,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 03:50:08,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 03:50:08,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 03:50:08,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 03:50:08,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:50:08,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:50:08,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:50:08,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:50:08,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:50:08,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:50:08,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:50:08,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:50:08,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:50:08,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:50:08,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:50:08,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 03:50:08,865 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:50:08,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:50:08,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:50:08,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:50:08,868 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:50:08,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:50:08,868 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:50:08,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:50:08,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:50:08,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:50:08,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:50:08,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:50:08,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:50:08,870 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:50:08,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:50:08,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:50:08,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:50:08,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:50:08,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:50:08,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:50:08,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:50:08,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:50:08,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:50:08,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:50:08,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:50:08,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:50:08,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:50:08,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:50:08,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:50:09,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:50:09,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:50:09,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:50:09,165 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:50:09,165 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:50:09,166 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2019-12-27 03:50:09,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a5f7760/92be4df2f4ab41f5baa4d43af1d27e49/FLAGcb0d35717 [2019-12-27 03:50:09,787 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:50:09,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2019-12-27 03:50:09,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a5f7760/92be4df2f4ab41f5baa4d43af1d27e49/FLAGcb0d35717 [2019-12-27 03:50:10,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a5f7760/92be4df2f4ab41f5baa4d43af1d27e49 [2019-12-27 03:50:10,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:50:10,053 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:50:10,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:50:10,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:50:10,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:50:10,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727e516d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10, skipping insertion in model container [2019-12-27 03:50:10,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:50:10,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:50:10,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:50:10,640 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:50:10,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:50:10,765 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:50:10,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10 WrapperNode [2019-12-27 03:50:10,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:50:10,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:50:10,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:50:10,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:50:10,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:50:10,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:50:10,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:50:10,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:50:10,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... [2019-12-27 03:50:10,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:50:10,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:50:10,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:50:10,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:50:10,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:50:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:50:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:50:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:50:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:50:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:50:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:50:10,913 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:50:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:50:10,913 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:50:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:50:10,913 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 03:50:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 03:50:10,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:50:10,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:50:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:50:10,916 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 03:50:11,296 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:50:11,296 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:50:11,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:50:11 BoogieIcfgContainer [2019-12-27 03:50:11,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:50:11,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:50:11,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:50:11,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:50:11,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:50:10" (1/3) ... [2019-12-27 03:50:11,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55811ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:50:11, skipping insertion in model container [2019-12-27 03:50:11,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:10" (2/3) ... [2019-12-27 03:50:11,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55811ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:50:11, skipping insertion in model container [2019-12-27 03:50:11,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:50:11" (3/3) ... [2019-12-27 03:50:11,306 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2019-12-27 03:50:11,315 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:50:11,315 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:50:11,326 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:50:11,327 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:50:11,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,362 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,362 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,362 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,366 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,366 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,367 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,368 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,368 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,368 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,368 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,369 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,373 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,373 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,374 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,374 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,379 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,380 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,380 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,380 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,383 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,384 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,384 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,384 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,387 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,388 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:11,404 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 03:50:11,421 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:50:11,422 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:50:11,422 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:50:11,422 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:50:11,422 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:50:11,422 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:50:11,422 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:50:11,423 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:50:11,436 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 64 transitions [2019-12-27 03:50:11,438 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 76 places, 64 transitions [2019-12-27 03:50:11,487 INFO L132 PetriNetUnfolder]: 1/60 cut-off events. [2019-12-27 03:50:11,488 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:50:11,494 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs. 0/58 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 03:50:11,497 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 76 places, 64 transitions [2019-12-27 03:50:11,538 INFO L132 PetriNetUnfolder]: 1/60 cut-off events. [2019-12-27 03:50:11,539 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:50:11,540 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs. 0/58 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 03:50:11,541 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-12-27 03:50:11,542 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:50:13,208 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 03:50:13,292 INFO L206 etLargeBlockEncoding]: Checked pairs total: 721 [2019-12-27 03:50:13,292 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2019-12-27 03:50:13,296 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 19 transitions [2019-12-27 03:50:13,322 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 94 states. [2019-12-27 03:50:13,326 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2019-12-27 03:50:13,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:50:13,339 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:13,340 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:13,341 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:13,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:13,349 INFO L82 PathProgramCache]: Analyzing trace with hash -989464989, now seen corresponding path program 1 times [2019-12-27 03:50:13,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:13,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528536950] [2019-12-27 03:50:13,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:13,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528536950] [2019-12-27 03:50:13,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:13,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:50:13,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114712613] [2019-12-27 03:50:13,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:50:13,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:13,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:50:13,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:50:13,763 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2019-12-27 03:50:13,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:13,805 INFO L93 Difference]: Finished difference Result 86 states and 212 transitions. [2019-12-27 03:50:13,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:50:13,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:50:13,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:13,838 INFO L225 Difference]: With dead ends: 86 [2019-12-27 03:50:13,838 INFO L226 Difference]: Without dead ends: 70 [2019-12-27 03:50:13,842 INFO L631 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 [2019-12-27 03:50:13,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-27 03:50:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-27 03:50:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-27 03:50:13,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-12-27 03:50:13,888 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 10 [2019-12-27 03:50:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:13,889 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-12-27 03:50:13,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:50:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-12-27 03:50:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:50:13,891 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:13,891 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:13,891 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:13,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:13,892 INFO L82 PathProgramCache]: Analyzing trace with hash -609272234, now seen corresponding path program 1 times [2019-12-27 03:50:13,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:13,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074230302] [2019-12-27 03:50:13,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:13,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074230302] [2019-12-27 03:50:13,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:13,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:50:13,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605492279] [2019-12-27 03:50:13,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:50:13,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:13,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:50:13,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:50:13,993 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 3 states. [2019-12-27 03:50:14,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:14,002 INFO L93 Difference]: Finished difference Result 66 states and 152 transitions. [2019-12-27 03:50:14,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:50:14,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 03:50:14,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:14,006 INFO L225 Difference]: With dead ends: 66 [2019-12-27 03:50:14,006 INFO L226 Difference]: Without dead ends: 66 [2019-12-27 03:50:14,007 INFO L631 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 [2019-12-27 03:50:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-27 03:50:14,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-12-27 03:50:14,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-27 03:50:14,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 152 transitions. [2019-12-27 03:50:14,017 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 152 transitions. Word has length 11 [2019-12-27 03:50:14,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:14,017 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 152 transitions. [2019-12-27 03:50:14,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:50:14,018 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 152 transitions. [2019-12-27 03:50:14,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 03:50:14,019 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:14,019 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:14,019 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:14,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:14,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1933083520, now seen corresponding path program 1 times [2019-12-27 03:50:14,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:14,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837959497] [2019-12-27 03:50:14,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:14,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837959497] [2019-12-27 03:50:14,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:14,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:50:14,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023290335] [2019-12-27 03:50:14,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:14,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:14,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:14,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:14,104 INFO L87 Difference]: Start difference. First operand 66 states and 152 transitions. Second operand 4 states. [2019-12-27 03:50:14,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:14,133 INFO L93 Difference]: Finished difference Result 82 states and 178 transitions. [2019-12-27 03:50:14,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:50:14,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-27 03:50:14,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:14,135 INFO L225 Difference]: With dead ends: 82 [2019-12-27 03:50:14,135 INFO L226 Difference]: Without dead ends: 52 [2019-12-27 03:50:14,135 INFO L631 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 [2019-12-27 03:50:14,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-27 03:50:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-27 03:50:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-27 03:50:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 108 transitions. [2019-12-27 03:50:14,143 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 108 transitions. Word has length 12 [2019-12-27 03:50:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:14,143 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 108 transitions. [2019-12-27 03:50:14,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 108 transitions. [2019-12-27 03:50:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 03:50:14,144 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:14,144 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:14,145 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:14,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:14,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1709122238, now seen corresponding path program 2 times [2019-12-27 03:50:14,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:14,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586629406] [2019-12-27 03:50:14,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:14,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586629406] [2019-12-27 03:50:14,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:14,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:50:14,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013564500] [2019-12-27 03:50:14,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:14,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:14,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:14,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:14,232 INFO L87 Difference]: Start difference. First operand 52 states and 108 transitions. Second operand 4 states. [2019-12-27 03:50:14,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:14,260 INFO L93 Difference]: Finished difference Result 66 states and 123 transitions. [2019-12-27 03:50:14,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 03:50:14,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-27 03:50:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:14,261 INFO L225 Difference]: With dead ends: 66 [2019-12-27 03:50:14,261 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 03:50:14,261 INFO L631 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 [2019-12-27 03:50:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 03:50:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 03:50:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 03:50:14,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 57 transitions. [2019-12-27 03:50:14,266 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 57 transitions. Word has length 12 [2019-12-27 03:50:14,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:14,266 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 57 transitions. [2019-12-27 03:50:14,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:14,266 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2019-12-27 03:50:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-27 03:50:14,267 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:14,267 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:14,267 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:14,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1395075125, now seen corresponding path program 1 times [2019-12-27 03:50:14,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:14,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273713398] [2019-12-27 03:50:14,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:14,323 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273713398] [2019-12-27 03:50:14,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:14,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:50:14,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052789904] [2019-12-27 03:50:14,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:14,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:14,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:14,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:14,325 INFO L87 Difference]: Start difference. First operand 34 states and 57 transitions. Second operand 4 states. [2019-12-27 03:50:14,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:14,359 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2019-12-27 03:50:14,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:50:14,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-27 03:50:14,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:14,360 INFO L225 Difference]: With dead ends: 41 [2019-12-27 03:50:14,361 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 03:50:14,361 INFO L631 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 [2019-12-27 03:50:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 03:50:14,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 03:50:14,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 03:50:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 03:50:14,366 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 13 [2019-12-27 03:50:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:14,367 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 03:50:14,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 03:50:14,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 03:50:14,368 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:14,368 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:14,368 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:14,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:14,368 INFO L82 PathProgramCache]: Analyzing trace with hash -534290396, now seen corresponding path program 1 times [2019-12-27 03:50:14,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:14,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302596017] [2019-12-27 03:50:14,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:14,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302596017] [2019-12-27 03:50:14,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:14,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:50:14,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216099390] [2019-12-27 03:50:14,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:14,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:14,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:14,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:14,435 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 4 states. [2019-12-27 03:50:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:14,449 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2019-12-27 03:50:14,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:50:14,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-27 03:50:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:14,450 INFO L225 Difference]: With dead ends: 24 [2019-12-27 03:50:14,450 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:50:14,451 INFO L631 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 [2019-12-27 03:50:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:50:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:50:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:50:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:50:14,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-27 03:50:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:14,452 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:50:14,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:50:14,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:50:14,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:50:14 BasicIcfg [2019-12-27 03:50:14,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:50:14,458 INFO L168 Benchmark]: Toolchain (without parser) took 4405.36 ms. Allocated memory was 138.4 MB in the beginning and 246.9 MB in the end (delta: 108.5 MB). Free memory was 102.1 MB in the beginning and 102.6 MB in the end (delta: -499.8 kB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:14,459 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 03:50:14,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.08 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 160.0 MB in the end (delta: -58.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:14,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.15 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:14,462 INFO L168 Benchmark]: Boogie Preprocessor took 27.95 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:14,463 INFO L168 Benchmark]: RCFGBuilder took 451.34 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 133.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:14,464 INFO L168 Benchmark]: TraceAbstraction took 3157.77 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 133.9 MB in the beginning and 102.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:14,469 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.08 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 160.0 MB in the end (delta: -58.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.15 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.95 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.34 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 133.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3157.77 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 133.9 MB in the beginning and 102.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 76 ProgramPointsBefore, 27 ProgramPointsAfterwards, 64 TransitionsBefore, 19 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 354 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 721 CheckedPairsTotal, 48 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 42 SDslu, 89 SDs, 0 SdLazy, 36 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 1972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...