/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:30:01,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:30:01,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:30:01,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:30:01,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:30:01,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:30:01,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:30:01,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:30:01,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:30:01,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:30:01,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:30:01,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:30:01,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:30:01,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:30:01,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:30:01,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:30:01,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:30:01,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:30:01,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:30:01,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:30:01,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:30:01,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:30:01,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:30:01,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:30:01,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:30:01,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:30:01,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:30:01,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:30:01,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:30:01,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:30:01,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:30:01,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:30:01,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:30:01,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:30:01,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:30:01,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:30:01,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-27 00:30:01,305 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:30:01,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:30:01,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:30:01,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:30:01,308 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:30:01,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:30:01,308 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:30:01,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:30:01,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:30:01,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:30:01,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:30:01,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:30:01,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:30:01,311 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:30:01,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:30:01,311 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:30:01,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:30:01,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:30:01,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:30:01,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:30:01,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:30:01,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:30:01,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:30:01,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:30:01,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:30:01,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:30:01,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:30:01,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:30:01,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:30:01,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:30:01,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:30:01,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:30:01,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:30:01,625 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:30:01,626 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:30:01,626 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2019-12-27 00:30:01,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/646b2a4e0/947515f806484cf98c01c1ec662bbc92/FLAGcc1f91988 [2019-12-27 00:30:02,211 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:30:02,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2019-12-27 00:30:02,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/646b2a4e0/947515f806484cf98c01c1ec662bbc92/FLAGcc1f91988 [2019-12-27 00:30:02,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/646b2a4e0/947515f806484cf98c01c1ec662bbc92 [2019-12-27 00:30:02,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:30:02,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:30:02,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:30:02,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:30:02,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:30:02,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:30:02" (1/1) ... [2019-12-27 00:30:02,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74eb5d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:02, skipping insertion in model container [2019-12-27 00:30:02,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:30:02" (1/1) ... [2019-12-27 00:30:02,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:30:02,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:30:02,787 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-12-27 00:30:03,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:30:03,091 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:30:03,113 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-12-27 00:30:03,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:30:03,241 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:30:03,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03 WrapperNode [2019-12-27 00:30:03,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:30:03,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:30:03,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:30:03,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:30:03,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:30:03,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:30:03,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:30:03,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:30:03,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... [2019-12-27 00:30:03,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:30:03,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:30:03,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:30:03,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:30:03,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:30:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 00:30:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:30:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 00:30:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:30:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:30:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 00:30:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-12-27 00:30:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-12-27 00:30:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:30:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:30:03,377 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:30:03,772 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:30:03,773 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 00:30:03,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:30:03 BoogieIcfgContainer [2019-12-27 00:30:03,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:30:03,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:30:03,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:30:03,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:30:03,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:30:02" (1/3) ... [2019-12-27 00:30:03,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d717fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:30:03, skipping insertion in model container [2019-12-27 00:30:03,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:30:03" (2/3) ... [2019-12-27 00:30:03,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d717fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:30:03, skipping insertion in model container [2019-12-27 00:30:03,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:30:03" (3/3) ... [2019-12-27 00:30:03,783 INFO L109 eAbstractionObserver]: Analyzing ICFG condvar.i [2019-12-27 00:30:03,793 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:30:03,794 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:30:03,804 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:30:03,805 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:30:03,831 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,832 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,832 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,832 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,833 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,833 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,834 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,834 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,834 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,835 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,839 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,839 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,839 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,840 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,840 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,840 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:30:03,863 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 00:30:03,879 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:30:03,879 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:30:03,880 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:30:03,880 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:30:03,880 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:30:03,880 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:30:03,880 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:30:03,880 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:30:03,893 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 59 transitions [2019-12-27 00:30:03,895 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions [2019-12-27 00:30:03,936 INFO L132 PetriNetUnfolder]: 5/58 cut-off events. [2019-12-27 00:30:03,937 INFO L133 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2019-12-27 00:30:03,942 INFO L76 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 5/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs. 0/52 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2019-12-27 00:30:03,945 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions [2019-12-27 00:30:03,966 INFO L132 PetriNetUnfolder]: 5/58 cut-off events. [2019-12-27 00:30:03,966 INFO L133 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2019-12-27 00:30:03,968 INFO L76 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 5/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs. 0/52 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2019-12-27 00:30:03,969 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 352 [2019-12-27 00:30:03,971 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:30:05,227 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-12-27 00:30:05,769 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2019-12-27 00:30:05,908 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-12-27 00:30:05,911 INFO L206 etLargeBlockEncoding]: Checked pairs total: 294 [2019-12-27 00:30:05,911 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2019-12-27 00:30:05,914 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 12 transitions [2019-12-27 00:30:05,922 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 16 states. [2019-12-27 00:30:05,924 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-12-27 00:30:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 00:30:05,930 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:30:05,931 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 00:30:05,931 INFO L410 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:30:05,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:30:05,938 INFO L82 PathProgramCache]: Analyzing trace with hash 7366572, now seen corresponding path program 1 times [2019-12-27 00:30:05,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:30:05,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726359806] [2019-12-27 00:30:05,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:30:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:30:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:30:06,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726359806] [2019-12-27 00:30:06,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:30:06,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:30:06,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395237738] [2019-12-27 00:30:06,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:30:06,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:30:06,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:30:06,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:30:06,280 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-12-27 00:30:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:30:06,313 INFO L93 Difference]: Finished difference Result 12 states and 18 transitions. [2019-12-27 00:30:06,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:30:06,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-27 00:30:06,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:30:06,334 INFO L225 Difference]: With dead ends: 12 [2019-12-27 00:30:06,334 INFO L226 Difference]: Without dead ends: 9 [2019-12-27 00:30:06,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:30:06,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-27 00:30:06,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-27 00:30:06,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-27 00:30:06,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2019-12-27 00:30:06,372 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 15 transitions. Word has length 4 [2019-12-27 00:30:06,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:30:06,373 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 15 transitions. [2019-12-27 00:30:06,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:30:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 15 transitions. [2019-12-27 00:30:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 00:30:06,374 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:30:06,374 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-27 00:30:06,375 INFO L410 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:30:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:30:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1511130461, now seen corresponding path program 1 times [2019-12-27 00:30:06,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:30:06,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857114386] [2019-12-27 00:30:06,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:30:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:30:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:30:06,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857114386] [2019-12-27 00:30:06,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:30:06,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:30:06,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972666466] [2019-12-27 00:30:06,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:30:06,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:30:06,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:30:06,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:30:06,434 INFO L87 Difference]: Start difference. First operand 9 states and 15 transitions. Second operand 3 states. [2019-12-27 00:30:06,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:30:06,441 INFO L93 Difference]: Finished difference Result 11 states and 19 transitions. [2019-12-27 00:30:06,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:30:06,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-27 00:30:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:30:06,443 INFO L225 Difference]: With dead ends: 11 [2019-12-27 00:30:06,443 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 00:30:06,444 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:30:06,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 00:30:06,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 00:30:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 00:30:06,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 19 transitions. [2019-12-27 00:30:06,447 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 19 transitions. Word has length 6 [2019-12-27 00:30:06,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:30:06,447 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 19 transitions. [2019-12-27 00:30:06,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:30:06,448 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 19 transitions. [2019-12-27 00:30:06,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 00:30:06,448 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:30:06,448 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:30:06,448 INFO L410 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:30:06,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:30:06,449 INFO L82 PathProgramCache]: Analyzing trace with hash 399613212, now seen corresponding path program 1 times [2019-12-27 00:30:06,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:30:06,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514232264] [2019-12-27 00:30:06,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:30:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:30:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:30:06,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514232264] [2019-12-27 00:30:06,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376147659] [2019-12-27 00:30:06,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:30:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:30:06,577 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-27 00:30:06,583 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:30:06,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:30:06,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 00:30:06,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-12-27 00:30:06,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676927247] [2019-12-27 00:30:06,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:30:06,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:30:06,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:30:06,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:30:06,607 INFO L87 Difference]: Start difference. First operand 11 states and 19 transitions. Second operand 5 states. [2019-12-27 00:30:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:30:06,626 INFO L93 Difference]: Finished difference Result 13 states and 23 transitions. [2019-12-27 00:30:06,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:30:06,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-27 00:30:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:30:06,628 INFO L225 Difference]: With dead ends: 13 [2019-12-27 00:30:06,628 INFO L226 Difference]: Without dead ends: 13 [2019-12-27 00:30:06,628 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:30:06,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-27 00:30:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-27 00:30:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-27 00:30:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 23 transitions. [2019-12-27 00:30:06,632 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 23 transitions. Word has length 7 [2019-12-27 00:30:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:30:06,632 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 23 transitions. [2019-12-27 00:30:06,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:30:06,632 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 23 transitions. [2019-12-27 00:30:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:30:06,633 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:30:06,633 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-27 00:30:06,834 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:30:06,834 INFO L410 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:30:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:30:06,835 INFO L82 PathProgramCache]: Analyzing trace with hash -496875069, now seen corresponding path program 2 times [2019-12-27 00:30:06,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:30:06,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091677592] [2019-12-27 00:30:06,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:30:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:30:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-27 00:30:06,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091677592] [2019-12-27 00:30:06,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:30:06,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:30:06,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392649971] [2019-12-27 00:30:06,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:30:06,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:30:06,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:30:06,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:30:06,942 INFO L87 Difference]: Start difference. First operand 13 states and 23 transitions. Second operand 4 states. [2019-12-27 00:30:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:30:06,954 INFO L93 Difference]: Finished difference Result 12 states and 22 transitions. [2019-12-27 00:30:06,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:30:06,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 00:30:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:30:06,955 INFO L225 Difference]: With dead ends: 12 [2019-12-27 00:30:06,955 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:30:06,955 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:30:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:30:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:30:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:30:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:30:06,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-27 00:30:06,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:30:06,956 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:30:06,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:30:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:30:06,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:30:06,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:30:06 BasicIcfg [2019-12-27 00:30:06,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:30:06,963 INFO L168 Benchmark]: Toolchain (without parser) took 4453.00 ms. Allocated memory was 143.1 MB in the beginning and 251.1 MB in the end (delta: 108.0 MB). Free memory was 100.2 MB in the beginning and 113.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 94.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:30:06,964 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 00:30:06,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.95 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 159.6 MB in the end (delta: -59.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-27 00:30:06,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.44 ms. Allocated memory is still 200.3 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 00:30:06,966 INFO L168 Benchmark]: Boogie Preprocessor took 29.44 ms. Allocated memory is still 200.3 MB. Free memory was 157.5 MB in the beginning and 156.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:30:06,967 INFO L168 Benchmark]: RCFGBuilder took 453.34 ms. Allocated memory is still 200.3 MB. Free memory was 156.0 MB in the beginning and 134.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:30:06,968 INFO L168 Benchmark]: TraceAbstraction took 3185.40 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 134.0 MB in the beginning and 113.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2019-12-27 00:30:06,973 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.95 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 159.6 MB in the end (delta: -59.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.44 ms. Allocated memory is still 200.3 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.44 ms. Allocated memory is still 200.3 MB. Free memory was 157.5 MB in the beginning and 156.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.34 ms. Allocated memory is still 200.3 MB. Free memory was 156.0 MB in the beginning and 134.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3185.40 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 134.0 MB in the beginning and 113.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 58 ProgramPointsBefore, 13 ProgramPointsAfterwards, 59 TransitionsBefore, 12 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 190 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 8 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 294 CheckedPairsTotal, 50 TotalNumberOfCompositions - PositiveResult [Line: 695]: 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 2 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 13 SDslu, 24 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 1 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 3/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...