/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:07:44,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:07:44,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:07:44,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:07:44,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:07:44,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:07:44,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:07:44,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:07:44,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:07:44,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:07:44,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:07:44,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:07:44,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:07:44,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:07:44,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:07:44,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:07:44,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:07:44,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:07:44,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:07:44,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:07:44,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:07:44,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:07:44,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:07:44,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:07:44,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:07:44,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:07:44,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:07:44,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:07:44,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:07:44,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:07:44,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:07:44,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:07:44,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:07:44,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:07:44,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:07:44,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:07:44,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:07:44,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:07:44,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:07:44,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:07:44,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:07:44,238 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:07:44,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:07:44,239 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:07:44,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:07:44,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:07:44,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:07:44,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:07:44,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:07:44,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:07:44,241 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:07:44,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:07:44,242 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:07:44,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:07:44,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:07:44,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:07:44,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:07:44,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:07:44,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:07:44,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:07:44,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:07:44,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:07:44,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:07:44,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:07:44,256 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:07:44,256 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:07:44,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:07:44,256 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:07:44,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:07:44,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:07:44,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:07:44,653 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:07:44,654 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:07:44,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-11-09 17:07:44,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057fbc261/ab5b4f43d36841708970d0ddf2724db4/FLAGd7f64479b [2020-11-09 17:07:45,366 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:07:45,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-11-09 17:07:45,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057fbc261/ab5b4f43d36841708970d0ddf2724db4/FLAGd7f64479b [2020-11-09 17:07:45,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057fbc261/ab5b4f43d36841708970d0ddf2724db4 [2020-11-09 17:07:45,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:07:45,700 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:07:45,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:45,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:07:45,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:07:45,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:45" (1/1) ... [2020-11-09 17:07:45,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e9206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:45, skipping insertion in model container [2020-11-09 17:07:45,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:45" (1/1) ... [2020-11-09 17:07:45,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:07:45,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:07:46,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:46,343 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:07:46,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:46,581 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:07:46,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46 WrapperNode [2020-11-09 17:07:46,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:46,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:46,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:07:46,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:07:46,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:46,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:07:46,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:07:46,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:07:46,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (1/1) ... [2020-11-09 17:07:46,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:07:46,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:07:46,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:07:46,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:07:46,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (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 [2020-11-09 17:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:07:46,819 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:07:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:07:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:07:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:07:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:07:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 17:07:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 17:07:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:07:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:07:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:07:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:07:46,823 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:07:47,420 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:07:47,420 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:07:47,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:47 BoogieIcfgContainer [2020-11-09 17:07:47,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:07:47,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:07:47,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:07:47,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:07:47,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:07:45" (1/3) ... [2020-11-09 17:07:47,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36253429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:47, skipping insertion in model container [2020-11-09 17:07:47,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:46" (2/3) ... [2020-11-09 17:07:47,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36253429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:47, skipping insertion in model container [2020-11-09 17:07:47,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:47" (3/3) ... [2020-11-09 17:07:47,433 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-11-09 17:07:47,451 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:07:47,451 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:07:47,455 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:07:47,457 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:07:47,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,496 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,496 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,497 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,497 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,499 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,500 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,500 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,500 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,500 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,501 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,504 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,506 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,506 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,506 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,506 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,507 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,507 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,507 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,507 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,508 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,508 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,508 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,508 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,512 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,518 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,518 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,519 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,519 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,527 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,527 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:47,532 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:07:47,545 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 17:07:47,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:07:47,570 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:07:47,570 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:07:47,571 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:07:47,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:07:47,571 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:07:47,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:07:47,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:07:47,584 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:07:47,599 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 17:07:47,603 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 17:07:47,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-11-09 17:07:47,656 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-11-09 17:07:47,656 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:07:47,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 17:07:47,671 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 17:07:51,104 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 17:07:51,283 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 17:07:51,756 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-09 17:07:51,989 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-09 17:07:52,496 WARN L194 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:07:52,613 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:52,848 WARN L194 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:07:52,958 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:53,194 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 17:07:53,415 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-11-09 17:07:53,495 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-11-09 17:07:53,495 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-11-09 17:07:53,501 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 17:07:53,557 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 17:07:53,560 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 17:07:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:07:53,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:53,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:53,572 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:53,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:53,579 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-11-09 17:07:53,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:53,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077980909] [2020-11-09 17:07:53,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:53,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077980909] [2020-11-09 17:07:53,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:53,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:07:53,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1412181812] [2020-11-09 17:07:53,920 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:53,925 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:53,949 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 17:07:53,949 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:53,956 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:53,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:07:53,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:53,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:07:53,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:07:53,982 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 17:07:54,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:54,078 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 17:07:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:07:54,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 17:07:54,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:54,125 INFO L225 Difference]: With dead ends: 670 [2020-11-09 17:07:54,126 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 17:07:54,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:07:54,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 17:07:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 17:07:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 17:07:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 17:07:54,279 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 17:07:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:54,280 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 17:07:54,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:07:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 17:07:54,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:07:54,285 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:54,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:54,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:07:54,286 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:54,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-11-09 17:07:54,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:54,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372244236] [2020-11-09 17:07:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:54,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372244236] [2020-11-09 17:07:54,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:54,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:07:54,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1947776079] [2020-11-09 17:07:54,438 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:54,439 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:54,442 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:07:54,442 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:54,573 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:54,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:07:54,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:54,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:07:54,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:07:54,577 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 3 states. [2020-11-09 17:07:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:54,591 INFO L93 Difference]: Finished difference Result 499 states and 1635 transitions. [2020-11-09 17:07:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:07:54,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 17:07:54,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:54,598 INFO L225 Difference]: With dead ends: 499 [2020-11-09 17:07:54,598 INFO L226 Difference]: Without dead ends: 499 [2020-11-09 17:07:54,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:07:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-11-09 17:07:54,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2020-11-09 17:07:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-11-09 17:07:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1635 transitions. [2020-11-09 17:07:54,622 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1635 transitions. Word has length 11 [2020-11-09 17:07:54,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:54,622 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 1635 transitions. [2020-11-09 17:07:54,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:07:54,622 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1635 transitions. [2020-11-09 17:07:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:07:54,625 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:54,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:54,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:07:54,626 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:54,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:54,626 INFO L82 PathProgramCache]: Analyzing trace with hash -784965297, now seen corresponding path program 1 times [2020-11-09 17:07:54,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:54,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482351748] [2020-11-09 17:07:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:54,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482351748] [2020-11-09 17:07:54,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:54,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:54,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [135982369] [2020-11-09 17:07:54,728 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:54,730 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:54,734 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 43 transitions. [2020-11-09 17:07:54,734 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:54,865 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:54,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:54,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:54,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:54,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:54,866 INFO L87 Difference]: Start difference. First operand 499 states and 1635 transitions. Second operand 4 states. [2020-11-09 17:07:54,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:54,911 INFO L93 Difference]: Finished difference Result 706 states and 2262 transitions. [2020-11-09 17:07:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:07:54,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 17:07:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:54,916 INFO L225 Difference]: With dead ends: 706 [2020-11-09 17:07:54,917 INFO L226 Difference]: Without dead ends: 394 [2020-11-09 17:07:54,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-09 17:07:54,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-09 17:07:54,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-09 17:07:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-11-09 17:07:54,934 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-11-09 17:07:54,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:54,935 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-11-09 17:07:54,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-11-09 17:07:54,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:07:54,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:54,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:54,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:07:54,937 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:54,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:54,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-11-09 17:07:54,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:54,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78320629] [2020-11-09 17:07:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:55,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78320629] [2020-11-09 17:07:55,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:55,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:55,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1727868950] [2020-11-09 17:07:55,044 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:55,047 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:55,070 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-11-09 17:07:55,070 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:55,141 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:55,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:55,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:55,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:55,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:55,145 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-11-09 17:07:55,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:55,178 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-11-09 17:07:55,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:07:55,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 17:07:55,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:55,181 INFO L225 Difference]: With dead ends: 538 [2020-11-09 17:07:55,182 INFO L226 Difference]: Without dead ends: 286 [2020-11-09 17:07:55,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:55,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-09 17:07:55,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-11-09 17:07:55,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-09 17:07:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-11-09 17:07:55,194 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-11-09 17:07:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:55,195 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-11-09 17:07:55,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-11-09 17:07:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:07:55,196 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:55,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:55,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:07:55,197 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:55,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:55,197 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-11-09 17:07:55,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:55,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155673815] [2020-11-09 17:07:55,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:55,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155673815] [2020-11-09 17:07:55,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:55,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:55,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1421654903] [2020-11-09 17:07:55,334 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:55,336 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:55,343 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 17:07:55,343 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:55,355 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,380 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,394 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,406 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,422 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,436 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,456 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,471 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,501 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7360#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 17:07:55,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:07:55,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:55,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:07:55,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:55,503 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 5 states. [2020-11-09 17:07:55,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:55,584 INFO L93 Difference]: Finished difference Result 301 states and 817 transitions. [2020-11-09 17:07:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:07:55,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 17:07:55,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:55,586 INFO L225 Difference]: With dead ends: 301 [2020-11-09 17:07:55,587 INFO L226 Difference]: Without dead ends: 208 [2020-11-09 17:07:55,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:07:55,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-09 17:07:55,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-11-09 17:07:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-09 17:07:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-11-09 17:07:55,595 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 14 [2020-11-09 17:07:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:55,596 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-11-09 17:07:55,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:07:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-11-09 17:07:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 17:07:55,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:55,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:55,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:07:55,598 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:55,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-11-09 17:07:55,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:55,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696425406] [2020-11-09 17:07:55,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:55,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:55,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696425406] [2020-11-09 17:07:55,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:55,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:07:55,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [844048216] [2020-11-09 17:07:55,714 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:55,716 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:55,724 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 76 transitions. [2020-11-09 17:07:55,725 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:55,730 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,797 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,814 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:55,928 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [8088#(not (= 4 ~__unbuffered_cnt~0)), 8089#(not (= ~__unbuffered_cnt~0 3)), 8090#(not (= ~__unbuffered_cnt~0 2)), 8091#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:07:55,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 17:07:55,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:55,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 17:07:55,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-09 17:07:55,930 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 10 states. [2020-11-09 17:07:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:56,053 INFO L93 Difference]: Finished difference Result 185 states and 463 transitions. [2020-11-09 17:07:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 17:07:56,054 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-09 17:07:56,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:56,055 INFO L225 Difference]: With dead ends: 185 [2020-11-09 17:07:56,056 INFO L226 Difference]: Without dead ends: 147 [2020-11-09 17:07:56,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-11-09 17:07:56,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-09 17:07:56,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-11-09 17:07:56,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-09 17:07:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 362 transitions. [2020-11-09 17:07:56,062 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 362 transitions. Word has length 16 [2020-11-09 17:07:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:56,062 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 362 transitions. [2020-11-09 17:07:56,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 17:07:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 362 transitions. [2020-11-09 17:07:56,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 17:07:56,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:56,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:56,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:07:56,064 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:56,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:56,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1961572935, now seen corresponding path program 1 times [2020-11-09 17:07:56,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:56,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901685506] [2020-11-09 17:07:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:56,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901685506] [2020-11-09 17:07:56,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:56,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:56,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1119547534] [2020-11-09 17:07:56,110 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:56,113 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:56,127 INFO L252 McrAutomatonBuilder]: Finished intersection with 65 states and 114 transitions. [2020-11-09 17:07:56,127 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:56,144 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:56,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:56,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:56,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:56,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:56,146 INFO L87 Difference]: Start difference. First operand 147 states and 362 transitions. Second operand 4 states. [2020-11-09 17:07:56,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:56,171 INFO L93 Difference]: Finished difference Result 230 states and 541 transitions. [2020-11-09 17:07:56,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:56,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 17:07:56,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:56,173 INFO L225 Difference]: With dead ends: 230 [2020-11-09 17:07:56,173 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 17:07:56,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:56,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 17:07:56,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 17:07:56,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 17:07:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 17:07:56,177 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 17:07:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:56,177 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 17:07:56,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 17:07:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 17:07:56,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:56,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:56,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:07:56,178 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:56,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:56,179 INFO L82 PathProgramCache]: Analyzing trace with hash 2013284665, now seen corresponding path program 2 times [2020-11-09 17:07:56,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:56,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333849523] [2020-11-09 17:07:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:56,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333849523] [2020-11-09 17:07:56,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:56,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:56,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1850849280] [2020-11-09 17:07:56,223 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:56,226 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:56,240 INFO L252 McrAutomatonBuilder]: Finished intersection with 66 states and 115 transitions. [2020-11-09 17:07:56,241 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:56,314 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:56,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:56,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:56,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:56,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:56,316 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 17:07:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:56,332 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 17:07:56,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:07:56,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 17:07:56,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:56,333 INFO L225 Difference]: With dead ends: 70 [2020-11-09 17:07:56,333 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:07:56,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:07:56,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:07:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:07:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:07:56,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 17:07:56,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:56,334 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:07:56,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:07:56,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:07:56,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:07:56,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:07:56 BasicIcfg [2020-11-09 17:07:56,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:07:56,340 INFO L168 Benchmark]: Toolchain (without parser) took 10651.87 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 132.5 MB in the beginning and 88.8 MB in the end (delta: 43.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:56,341 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 125.8 MB. Free memory was 103.0 MB in the beginning and 102.9 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:07:56,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 880.76 ms. Allocated memory is still 157.3 MB. Free memory was 131.8 MB in the beginning and 133.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:56,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.01 ms. Allocated memory is still 157.3 MB. Free memory was 133.5 MB in the beginning and 131.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:56,343 INFO L168 Benchmark]: Boogie Preprocessor took 51.90 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 129.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:56,344 INFO L168 Benchmark]: RCFGBuilder took 689.06 ms. Allocated memory is still 157.3 MB. Free memory was 129.9 MB in the beginning and 106.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:56,345 INFO L168 Benchmark]: TraceAbstraction took 8913.43 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 105.8 MB in the beginning and 88.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:56,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 125.8 MB. Free memory was 103.0 MB in the beginning and 102.9 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 880.76 ms. Allocated memory is still 157.3 MB. Free memory was 131.8 MB in the beginning and 133.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 95.01 ms. Allocated memory is still 157.3 MB. Free memory was 133.5 MB in the beginning and 131.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.90 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 129.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 689.06 ms. Allocated memory is still 157.3 MB. Free memory was 129.9 MB in the beginning and 106.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8913.43 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 105.8 MB in the beginning and 88.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.8s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 173 SDtfs, 157 SDslu, 291 SDs, 0 SdLazy, 142 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 120 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4354 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...