/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/safe035_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 00:13:47,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 00:13:47,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 00:13:47,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 00:13:47,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 00:13:47,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 00:13:47,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 00:13:47,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 00:13:47,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 00:13:47,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 00:13:47,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 00:13:47,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 00:13:47,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 00:13:47,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 00:13:47,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 00:13:47,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 00:13:47,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 00:13:47,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 00:13:47,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 00:13:47,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 00:13:47,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 00:13:47,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 00:13:47,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 00:13:47,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 00:13:47,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 00:13:47,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 00:13:47,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 00:13:47,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 00:13:47,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 00:13:47,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 00:13:47,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 00:13:47,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 00:13:47,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 00:13:47,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 00:13:47,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 00:13:47,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 00:13:47,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 00:13:47,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 00:13:47,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 00:13:47,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 00:13:47,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 00:13:47,739 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 [2020-11-12 00:13:47,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 00:13:47,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 00:13:47,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 00:13:47,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 00:13:47,805 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 00:13:47,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 00:13:47,805 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 00:13:47,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 00:13:47,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 00:13:47,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 00:13:47,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 00:13:47,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 00:13:47,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 00:13:47,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 00:13:47,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 00:13:47,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 00:13:47,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 00:13:47,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 00:13:47,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 00:13:47,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 00:13:47,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 00:13:47,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 00:13:47,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 00:13:47,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 00:13:47,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 00:13:47,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 00:13:47,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 00:13:47,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 00:13:47,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 00:13:48,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 00:13:48,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 00:13:48,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 00:13:48,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 00:13:48,336 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 00:13:48,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-11-12 00:13:48,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618821719/cefd98bb4eef4d7883f51be1deb76981/FLAGc2aaf42b3 [2020-11-12 00:13:49,078 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 00:13:49,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-11-12 00:13:49,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618821719/cefd98bb4eef4d7883f51be1deb76981/FLAGc2aaf42b3 [2020-11-12 00:13:49,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618821719/cefd98bb4eef4d7883f51be1deb76981 [2020-11-12 00:13:49,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 00:13:49,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 00:13:49,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 00:13:49,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 00:13:49,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 00:13:49,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:49" (1/1) ... [2020-11-12 00:13:49,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5320eaf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:49, skipping insertion in model container [2020-11-12 00:13:49,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:49" (1/1) ... [2020-11-12 00:13:49,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 00:13:49,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 00:13:50,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 00:13:50,017 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 00:13:50,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 00:13:50,208 INFO L208 MainTranslator]: Completed translation [2020-11-12 00:13:50,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50 WrapperNode [2020-11-12 00:13:50,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 00:13:50,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 00:13:50,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 00:13:50,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 00:13:50,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 00:13:50,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 00:13:50,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 00:13:50,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 00:13:50,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (1/1) ... [2020-11-12 00:13:50,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 00:13:50,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 00:13:50,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 00:13:50,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 00:13:50,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (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 [2020-11-12 00:13:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 00:13:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 00:13:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 00:13:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 00:13:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 00:13:50,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 00:13:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 00:13:50,441 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 00:13:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 00:13:50,441 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 00:13:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 00:13:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 00:13:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 00:13:50,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 00:13:50,444 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 00:13:50,878 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 00:13:50,879 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 00:13:50,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:50 BoogieIcfgContainer [2020-11-12 00:13:50,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 00:13:50,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 00:13:50,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 00:13:50,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 00:13:50,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:49" (1/3) ... [2020-11-12 00:13:50,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ec90cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:50, skipping insertion in model container [2020-11-12 00:13:50,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:50" (2/3) ... [2020-11-12 00:13:50,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ec90cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:50, skipping insertion in model container [2020-11-12 00:13:50,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:50" (3/3) ... [2020-11-12 00:13:50,890 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2020-11-12 00:13:50,905 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 00:13:50,906 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 00:13:50,910 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 00:13:50,911 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 00:13:50,941 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,941 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,941 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,941 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,946 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,948 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,948 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,949 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,949 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,949 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,950 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,950 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,950 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,956 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,956 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:13:50,970 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 00:13:50,984 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 00:13:51,007 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 00:13:51,008 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 00:13:51,008 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 00:13:51,008 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 00:13:51,008 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 00:13:51,008 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 00:13:51,008 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 00:13:51,009 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 00:13:51,021 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-12 00:13:51,024 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-12 00:13:51,028 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-12 00:13:51,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 00:13:51,081 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-12 00:13:51,081 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-12 00:13:51,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-12 00:13:51,089 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-12 00:13:53,615 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-12 00:13:53,820 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-12 00:13:54,343 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-12 00:13:54,453 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-12 00:13:54,690 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-12 00:13:54,809 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-12 00:13:55,008 INFO L131 LiptonReduction]: Checked pairs total: 2919 [2020-11-12 00:13:55,008 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-12 00:13:55,015 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-12 00:13:55,049 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 362 states, 360 states have (on average 3.1555555555555554) internal successors, (1136), 361 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 3.1555555555555554) internal successors, (1136), 361 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-12 00:13:55,061 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:55,062 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:55,062 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:55,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:55,069 INFO L82 PathProgramCache]: Analyzing trace with hash 578205231, now seen corresponding path program 1 times [2020-11-12 00:13:55,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:55,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161821033] [2020-11-12 00:13:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:55,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161821033] [2020-11-12 00:13:55,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:55,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 00:13:55,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116244177] [2020-11-12 00:13:55,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-12 00:13:55,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:55,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-12 00:13:55,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 00:13:55,362 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 3.1555555555555554) internal successors, (1136), 361 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:55,417 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-12 00:13:55,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-12 00:13:55,419 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2020-11-12 00:13:55,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:55,450 INFO L225 Difference]: With dead ends: 362 [2020-11-12 00:13:55,451 INFO L226 Difference]: Without dead ends: 298 [2020-11-12 00:13:55,452 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 00:13:55,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-12 00:13:55,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-12 00:13:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.909090909090909) internal successors, (864), 297 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-12 00:13:55,523 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-12 00:13:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:55,524 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-12 00:13:55,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,525 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-12 00:13:55,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-12 00:13:55,526 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:55,526 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:55,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 00:13:55,527 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:55,528 INFO L82 PathProgramCache]: Analyzing trace with hash 744483487, now seen corresponding path program 1 times [2020-11-12 00:13:55,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:55,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474622756] [2020-11-12 00:13:55,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:55,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474622756] [2020-11-12 00:13:55,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:55,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 00:13:55,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141709987] [2020-11-12 00:13:55,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-12 00:13:55,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:55,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-12 00:13:55,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-12 00:13:55,677 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:55,717 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-11-12 00:13:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-12 00:13:55,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2020-11-12 00:13:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:55,720 INFO L225 Difference]: With dead ends: 298 [2020-11-12 00:13:55,720 INFO L226 Difference]: Without dead ends: 234 [2020-11-12 00:13:55,724 INFO L749 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 [2020-11-12 00:13:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-12 00:13:55,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-11-12 00:13:55,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 2.7467811158798283) internal successors, (640), 233 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-11-12 00:13:55,763 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-11-12 00:13:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:55,764 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-11-12 00:13:55,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-11-12 00:13:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-12 00:13:55,770 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:55,770 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:55,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 00:13:55,771 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:55,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:55,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1811674307, now seen corresponding path program 1 times [2020-11-12 00:13:55,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:55,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468568167] [2020-11-12 00:13:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:55,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468568167] [2020-11-12 00:13:55,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:55,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 00:13:55,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756685570] [2020-11-12 00:13:55,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-12 00:13:55,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:55,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-12 00:13:55,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-12 00:13:55,897 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:55,948 INFO L93 Difference]: Finished difference Result 346 states and 916 transitions. [2020-11-12 00:13:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-12 00:13:55,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2020-11-12 00:13:55,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:55,952 INFO L225 Difference]: With dead ends: 346 [2020-11-12 00:13:55,952 INFO L226 Difference]: Without dead ends: 164 [2020-11-12 00:13:55,952 INFO L749 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 [2020-11-12 00:13:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-12 00:13:55,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-11-12 00:13:55,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 2.6503067484662575) internal successors, (432), 163 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 432 transitions. [2020-11-12 00:13:55,977 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 432 transitions. Word has length 11 [2020-11-12 00:13:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:55,977 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 432 transitions. [2020-11-12 00:13:55,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:55,977 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 432 transitions. [2020-11-12 00:13:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-12 00:13:55,982 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:55,982 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:55,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 00:13:55,982 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:55,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:55,983 INFO L82 PathProgramCache]: Analyzing trace with hash -327344886, now seen corresponding path program 1 times [2020-11-12 00:13:55,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:55,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308536276] [2020-11-12 00:13:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:56,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:56,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308536276] [2020-11-12 00:13:56,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:56,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 00:13:56,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700739972] [2020-11-12 00:13:56,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-12 00:13:56,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:56,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-12 00:13:56,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-12 00:13:56,072 INFO L87 Difference]: Start difference. First operand 164 states and 432 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:56,119 INFO L93 Difference]: Finished difference Result 183 states and 435 transitions. [2020-11-12 00:13:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-12 00:13:56,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2020-11-12 00:13:56,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:56,121 INFO L225 Difference]: With dead ends: 183 [2020-11-12 00:13:56,121 INFO L226 Difference]: Without dead ends: 131 [2020-11-12 00:13:56,122 INFO L749 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 [2020-11-12 00:13:56,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-12 00:13:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-11-12 00:13:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 2.330769230769231) internal successors, (303), 130 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 303 transitions. [2020-11-12 00:13:56,129 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 303 transitions. Word has length 12 [2020-11-12 00:13:56,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:56,130 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 303 transitions. [2020-11-12 00:13:56,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,130 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 303 transitions. [2020-11-12 00:13:56,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-12 00:13:56,131 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:56,131 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:56,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 00:13:56,132 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:56,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:56,132 INFO L82 PathProgramCache]: Analyzing trace with hash -828145903, now seen corresponding path program 1 times [2020-11-12 00:13:56,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:56,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138183498] [2020-11-12 00:13:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:56,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138183498] [2020-11-12 00:13:56,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:56,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-12 00:13:56,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285227208] [2020-11-12 00:13:56,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-12 00:13:56,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:56,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-12 00:13:56,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-12 00:13:56,203 INFO L87 Difference]: Start difference. First operand 131 states and 303 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:56,251 INFO L93 Difference]: Finished difference Result 118 states and 245 transitions. [2020-11-12 00:13:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-12 00:13:56,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2020-11-12 00:13:56,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:56,252 INFO L225 Difference]: With dead ends: 118 [2020-11-12 00:13:56,253 INFO L226 Difference]: Without dead ends: 87 [2020-11-12 00:13:56,253 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-12 00:13:56,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-12 00:13:56,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-12 00:13:56,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 2.0) internal successors, (172), 86 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 172 transitions. [2020-11-12 00:13:56,273 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 172 transitions. Word has length 13 [2020-11-12 00:13:56,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:56,273 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 172 transitions. [2020-11-12 00:13:56,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,273 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2020-11-12 00:13:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-12 00:13:56,275 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:56,275 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:56,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 00:13:56,275 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:56,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1022727692, now seen corresponding path program 1 times [2020-11-12 00:13:56,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:56,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558952303] [2020-11-12 00:13:56,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:56,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:56,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558952303] [2020-11-12 00:13:56,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:56,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-12 00:13:56,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625907310] [2020-11-12 00:13:56,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 00:13:56,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:56,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 00:13:56,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-12 00:13:56,357 INFO L87 Difference]: Start difference. First operand 87 states and 172 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:56,427 INFO L93 Difference]: Finished difference Result 76 states and 148 transitions. [2020-11-12 00:13:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 00:13:56,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2020-11-12 00:13:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:56,428 INFO L225 Difference]: With dead ends: 76 [2020-11-12 00:13:56,429 INFO L226 Difference]: Without dead ends: 67 [2020-11-12 00:13:56,429 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-12 00:13:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-12 00:13:56,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-12 00:13:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 2.0) internal successors, (132), 66 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 132 transitions. [2020-11-12 00:13:56,433 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 132 transitions. Word has length 15 [2020-11-12 00:13:56,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:56,433 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 132 transitions. [2020-11-12 00:13:56,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,433 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2020-11-12 00:13:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-12 00:13:56,434 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:56,435 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:56,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 00:13:56,435 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:56,435 INFO L82 PathProgramCache]: Analyzing trace with hash -3420150, now seen corresponding path program 1 times [2020-11-12 00:13:56,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:56,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587417231] [2020-11-12 00:13:56,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:56,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:56,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587417231] [2020-11-12 00:13:56,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:56,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-12 00:13:56,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24439654] [2020-11-12 00:13:56,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-12 00:13:56,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:56,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-12 00:13:56,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-12 00:13:56,499 INFO L87 Difference]: Start difference. First operand 67 states and 132 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:56,530 INFO L93 Difference]: Finished difference Result 87 states and 167 transitions. [2020-11-12 00:13:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-12 00:13:56,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2020-11-12 00:13:56,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:56,531 INFO L225 Difference]: With dead ends: 87 [2020-11-12 00:13:56,531 INFO L226 Difference]: Without dead ends: 40 [2020-11-12 00:13:56,532 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-12 00:13:56,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-12 00:13:56,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-12 00:13:56,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 39 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-11-12 00:13:56,534 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 18 [2020-11-12 00:13:56,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:56,535 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-11-12 00:13:56,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-11-12 00:13:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-12 00:13:56,536 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:13:56,536 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:13:56,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 00:13:56,536 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:13:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:13:56,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1473857474, now seen corresponding path program 2 times [2020-11-12 00:13:56,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:13:56,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332439777] [2020-11-12 00:13:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:13:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:13:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:13:56,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332439777] [2020-11-12 00:13:56,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:13:56,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-12 00:13:56,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436271952] [2020-11-12 00:13:56,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-12 00:13:56,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:13:56,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-12 00:13:56,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-12 00:13:56,647 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:13:56,680 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2020-11-12 00:13:56,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-12 00:13:56,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2020-11-12 00:13:56,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:13:56,681 INFO L225 Difference]: With dead ends: 39 [2020-11-12 00:13:56,681 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 00:13:56,681 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-12 00:13:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 00:13:56,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 00:13:56,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 00:13:56,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-12 00:13:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:13:56,682 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 00:13:56,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:13:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 00:13:56,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 00:13:56,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 00:13:56,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:13:56 BasicIcfg [2020-11-12 00:13:56,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 00:13:56,688 INFO L168 Benchmark]: Toolchain (without parser) took 7298.56 ms. Allocated memory was 302.0 MB in the beginning and 373.3 MB in the end (delta: 71.3 MB). Free memory was 276.1 MB in the beginning and 307.1 MB in the end (delta: -31.0 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.0 GB. [2020-11-12 00:13:56,688 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 00:13:56,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.90 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 244.8 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 00:13:56,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 285.4 MB in the end (delta: -40.8 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2020-11-12 00:13:56,690 INFO L168 Benchmark]: Boogie Preprocessor took 72.58 ms. Allocated memory is still 302.0 MB. Free memory was 284.3 MB in the beginning and 283.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 00:13:56,691 INFO L168 Benchmark]: RCFGBuilder took 528.57 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 260.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 00:13:56,692 INFO L168 Benchmark]: TraceAbstraction took 5803.53 ms. Allocated memory was 302.0 MB in the beginning and 373.3 MB in the end (delta: 71.3 MB). Free memory was 260.2 MB in the beginning and 307.1 MB in the end (delta: -46.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.0 GB. [2020-11-12 00:13:56,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 810.90 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 244.8 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 285.4 MB in the end (delta: -40.8 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 72.58 ms. Allocated memory is still 302.0 MB. Free memory was 284.3 MB in the beginning and 283.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 528.57 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 260.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5803.53 ms. Allocated memory was 302.0 MB in the beginning and 373.3 MB in the end (delta: 71.3 MB). Free memory was 260.2 MB in the beginning and 307.1 MB in the end (delta: -46.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1018 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 99 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2919 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 180 SDtfs, 147 SDslu, 276 SDs, 0 SdLazy, 119 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...