/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-nondet/nondet-array-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:30:15,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:30:15,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:30:16,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:30:16,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:30:16,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:30:16,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:30:16,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:30:16,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:30:16,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:30:16,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:30:16,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:30:16,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:30:16,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:30:16,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:30:16,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:30:16,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:30:16,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:30:16,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:30:16,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:30:16,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:30:16,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:30:16,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:30:16,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:30:16,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 15:30:16,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 15:30:16,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 15:30:16,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 15:30:16,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 15:30:16,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 15:30:16,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:30:16,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:30:16,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:30:16,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:30:16,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:30:16,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:30:16,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:30:16,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:30:16,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:30:16,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:30:16,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:30:16,056 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 [2019-12-18 15:30:16,074 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:30:16,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:30:16,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:30:16,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:30:16,075 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:30:16,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:30:16,076 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:30:16,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:30:16,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:30:16,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:30:16,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:30:16,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:30:16,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:30:16,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:30:16,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:30:16,078 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:30:16,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:30:16,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:30:16,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:30:16,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:30:16,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:30:16,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:30:16,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:30:16,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:30:16,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:30:16,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:30:16,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:30:16,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:30:16,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 15:30:16,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:30:16,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:30:16,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:30:16,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:30:16,389 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:30:16,389 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:30:16,390 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2019-12-18 15:30:16,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00a93fe53/f533693e3eba479688ea4ba93a39af55/FLAG9f0a4b987 [2019-12-18 15:30:17,023 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:30:17,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2019-12-18 15:30:17,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00a93fe53/f533693e3eba479688ea4ba93a39af55/FLAG9f0a4b987 [2019-12-18 15:30:17,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00a93fe53/f533693e3eba479688ea4ba93a39af55 [2019-12-18 15:30:17,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:30:17,319 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:30:17,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:30:17,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:30:17,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:30:17,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:30:17" (1/1) ... [2019-12-18 15:30:17,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8e9000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:17, skipping insertion in model container [2019-12-18 15:30:17,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:30:17" (1/1) ... [2019-12-18 15:30:17,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:30:17,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:30:17,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:30:17,889 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:30:17,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:30:18,074 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:30:18,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18 WrapperNode [2019-12-18 15:30:18,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:30:18,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:30:18,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:30:18,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:30:18,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:30:18,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:30:18,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:30:18,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:30:18,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (1/1) ... [2019-12-18 15:30:18,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:30:18,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:30:18,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:30:18,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:30:18,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (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 [2019-12-18 15:30:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-12-18 15:30:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 15:30:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:30:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-12-18 15:30:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-12-18 15:30:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:30:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:30:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:30:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:30:18,302 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:30:18,713 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:30:18,714 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-18 15:30:18,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:30:18 BoogieIcfgContainer [2019-12-18 15:30:18,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:30:18,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:30:18,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:30:18,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:30:18,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:30:17" (1/3) ... [2019-12-18 15:30:18,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c59945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:30:18, skipping insertion in model container [2019-12-18 15:30:18,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:30:18" (2/3) ... [2019-12-18 15:30:18,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c59945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:30:18, skipping insertion in model container [2019-12-18 15:30:18,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:30:18" (3/3) ... [2019-12-18 15:30:18,722 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2019-12-18 15:30:18,731 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:30:18,731 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:30:18,737 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:30:18,738 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:30:18,761 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,761 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,762 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,762 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,762 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,763 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,763 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,767 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,767 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,767 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,768 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,768 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:18,792 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 15:30:18,814 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:30:18,815 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:30:18,815 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:30:18,815 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:30:18,815 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:30:18,815 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:30:18,815 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:30:18,815 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:30:18,827 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 66 transitions [2019-12-18 15:30:18,829 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 66 transitions [2019-12-18 15:30:18,880 INFO L126 PetriNetUnfolder]: 11/98 cut-off events. [2019-12-18 15:30:18,881 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:18,890 INFO L76 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 98 events. 11/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs. 10/92 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2019-12-18 15:30:18,895 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 66 transitions [2019-12-18 15:30:18,934 INFO L126 PetriNetUnfolder]: 11/98 cut-off events. [2019-12-18 15:30:18,934 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:18,935 INFO L76 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 98 events. 11/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs. 10/92 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2019-12-18 15:30:18,936 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 370 [2019-12-18 15:30:18,938 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:30:20,447 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-12-18 15:30:20,560 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-12-18 15:30:20,599 INFO L206 etLargeBlockEncoding]: Checked pairs total: 289 [2019-12-18 15:30:20,599 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-12-18 15:30:20,604 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 14 transitions [2019-12-18 15:30:20,616 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 27 states. [2019-12-18 15:30:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-12-18 15:30:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:30:20,624 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:20,625 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:30:20,626 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:20,635 INFO L82 PathProgramCache]: Analyzing trace with hash 7975439, now seen corresponding path program 1 times [2019-12-18 15:30:20,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:20,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61252684] [2019-12-18 15:30:20,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:20,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61252684] [2019-12-18 15:30:20,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:20,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:30:20,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490750849] [2019-12-18 15:30:20,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:30:20,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:20,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:30:20,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:20,923 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2019-12-18 15:30:20,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:20,972 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2019-12-18 15:30:20,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:30:20,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 15:30:20,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:20,988 INFO L225 Difference]: With dead ends: 27 [2019-12-18 15:30:20,988 INFO L226 Difference]: Without dead ends: 23 [2019-12-18 15:30:20,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-18 15:30:21,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-18 15:30:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-18 15:30:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2019-12-18 15:30:21,027 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 32 transitions. Word has length 4 [2019-12-18 15:30:21,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:21,028 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 32 transitions. [2019-12-18 15:30:21,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:30:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2019-12-18 15:30:21,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 15:30:21,029 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:21,029 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-18 15:30:21,029 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:21,030 INFO L82 PathProgramCache]: Analyzing trace with hash -940684826, now seen corresponding path program 1 times [2019-12-18 15:30:21,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:21,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73228852] [2019-12-18 15:30:21,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:21,157 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:30:21,157 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:30:21,159 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:30:21,159 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 15:30:21,168 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,168 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,169 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,169 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,169 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,169 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,169 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,170 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,170 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,170 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,170 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,170 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,170 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,171 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,172 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,174 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,175 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,175 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,175 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,178 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,178 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,180 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,180 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,180 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:21,185 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 15:30:21,186 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:30:21,186 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:30:21,186 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:30:21,186 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:30:21,186 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:30:21,186 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:30:21,187 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:30:21,187 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:30:21,190 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 73 transitions [2019-12-18 15:30:21,190 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 71 places, 73 transitions [2019-12-18 15:30:21,220 INFO L126 PetriNetUnfolder]: 22/178 cut-off events. [2019-12-18 15:30:21,220 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:21,223 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 178 events. 22/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 451 event pairs. 28/176 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2019-12-18 15:30:21,227 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 71 places, 73 transitions [2019-12-18 15:30:21,251 INFO L126 PetriNetUnfolder]: 22/178 cut-off events. [2019-12-18 15:30:21,252 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:21,255 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 178 events. 22/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 451 event pairs. 28/176 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2019-12-18 15:30:21,263 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 900 [2019-12-18 15:30:21,263 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:30:22,462 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-12-18 15:30:22,539 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1597 [2019-12-18 15:30:22,539 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2019-12-18 15:30:22,539 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 23 transitions [2019-12-18 15:30:22,551 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 242 states. [2019-12-18 15:30:22,551 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states. [2019-12-18 15:30:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:30:22,552 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:22,552 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:30:22,552 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:22,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:22,552 INFO L82 PathProgramCache]: Analyzing trace with hash 12287151, now seen corresponding path program 1 times [2019-12-18 15:30:22,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:22,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159523297] [2019-12-18 15:30:22,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:22,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:22,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159523297] [2019-12-18 15:30:22,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:22,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:30:22,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659675227] [2019-12-18 15:30:22,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:30:22,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:22,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:30:22,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:22,607 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 3 states. [2019-12-18 15:30:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:22,638 INFO L93 Difference]: Finished difference Result 242 states and 550 transitions. [2019-12-18 15:30:22,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:30:22,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 15:30:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:22,645 INFO L225 Difference]: With dead ends: 242 [2019-12-18 15:30:22,645 INFO L226 Difference]: Without dead ends: 216 [2019-12-18 15:30:22,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-12-18 15:30:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2019-12-18 15:30:22,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-12-18 15:30:22,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 494 transitions. [2019-12-18 15:30:22,687 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 494 transitions. Word has length 4 [2019-12-18 15:30:22,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:22,688 INFO L462 AbstractCegarLoop]: Abstraction has 216 states and 494 transitions. [2019-12-18 15:30:22,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:30:22,688 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 494 transitions. [2019-12-18 15:30:22,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:30:22,689 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:22,689 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:22,689 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:22,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2023180747, now seen corresponding path program 1 times [2019-12-18 15:30:22,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:22,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574133732] [2019-12-18 15:30:22,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-18 15:30:22,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574133732] [2019-12-18 15:30:22,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:22,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:30:22,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127968841] [2019-12-18 15:30:22,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:30:22,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:22,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:30:22,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:30:22,736 INFO L87 Difference]: Start difference. First operand 216 states and 494 transitions. Second operand 4 states. [2019-12-18 15:30:22,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:22,783 INFO L93 Difference]: Finished difference Result 203 states and 426 transitions. [2019-12-18 15:30:22,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:30:22,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-18 15:30:22,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:22,786 INFO L225 Difference]: With dead ends: 203 [2019-12-18 15:30:22,786 INFO L226 Difference]: Without dead ends: 203 [2019-12-18 15:30:22,787 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 [2019-12-18 15:30:22,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-12-18 15:30:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 197. [2019-12-18 15:30:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-12-18 15:30:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 420 transitions. [2019-12-18 15:30:22,803 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 420 transitions. Word has length 8 [2019-12-18 15:30:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:22,804 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 420 transitions. [2019-12-18 15:30:22,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:30:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 420 transitions. [2019-12-18 15:30:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:30:22,805 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:22,805 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2019-12-18 15:30:22,805 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:22,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:22,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1086197660, now seen corresponding path program 1 times [2019-12-18 15:30:22,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:22,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024481584] [2019-12-18 15:30:22,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:22,848 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:30:22,849 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:30:22,849 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:30:22,849 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 15:30:22,857 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,857 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,857 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,857 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,857 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,858 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,858 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,858 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,858 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,858 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,859 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,859 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,859 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,859 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,859 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,860 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,860 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,860 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,860 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,860 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,860 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,861 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,861 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,861 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,861 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,861 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,863 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,863 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,863 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,864 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,864 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,865 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,865 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,866 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,866 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,866 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:22,869 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 15:30:22,869 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:30:22,870 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:30:22,870 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:30:22,870 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:30:22,870 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:30:22,870 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:30:22,870 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:30:22,870 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:30:22,872 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 80 transitions [2019-12-18 15:30:22,872 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions [2019-12-18 15:30:22,912 INFO L126 PetriNetUnfolder]: 44/325 cut-off events. [2019-12-18 15:30:22,914 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:22,918 INFO L76 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 325 events. 44/325 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1074 event pairs. 58/327 useless extension candidates. Maximal degree in co-relation 186. Up to 16 conditions per place. [2019-12-18 15:30:22,924 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions [2019-12-18 15:30:22,955 INFO L126 PetriNetUnfolder]: 44/325 cut-off events. [2019-12-18 15:30:22,955 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:22,957 INFO L76 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 325 events. 44/325 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1074 event pairs. 58/327 useless extension candidates. Maximal degree in co-relation 186. Up to 16 conditions per place. [2019-12-18 15:30:22,963 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1470 [2019-12-18 15:30:22,963 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:30:24,387 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-12-18 15:30:24,474 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2828 [2019-12-18 15:30:24,474 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-12-18 15:30:24,474 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 28 transitions [2019-12-18 15:30:24,520 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1150 states. [2019-12-18 15:30:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states. [2019-12-18 15:30:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:30:24,521 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:24,521 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:30:24,521 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:24,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 16813297, now seen corresponding path program 1 times [2019-12-18 15:30:24,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:24,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802839028] [2019-12-18 15:30:24,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:24,558 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802839028] [2019-12-18 15:30:24,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:24,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:30:24,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009550093] [2019-12-18 15:30:24,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:30:24,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:24,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:30:24,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:24,560 INFO L87 Difference]: Start difference. First operand 1150 states. Second operand 3 states. [2019-12-18 15:30:24,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:24,606 INFO L93 Difference]: Finished difference Result 1150 states and 3360 transitions. [2019-12-18 15:30:24,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:30:24,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 15:30:24,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:24,619 INFO L225 Difference]: With dead ends: 1150 [2019-12-18 15:30:24,620 INFO L226 Difference]: Without dead ends: 1024 [2019-12-18 15:30:24,621 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:24,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2019-12-18 15:30:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1024. [2019-12-18 15:30:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2019-12-18 15:30:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 3009 transitions. [2019-12-18 15:30:24,721 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 3009 transitions. Word has length 4 [2019-12-18 15:30:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:24,722 INFO L462 AbstractCegarLoop]: Abstraction has 1024 states and 3009 transitions. [2019-12-18 15:30:24,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:30:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 3009 transitions. [2019-12-18 15:30:24,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:30:24,723 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:24,723 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:24,723 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:24,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:24,724 INFO L82 PathProgramCache]: Analyzing trace with hash -427060089, now seen corresponding path program 1 times [2019-12-18 15:30:24,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:24,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434663912] [2019-12-18 15:30:24,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-18 15:30:24,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434663912] [2019-12-18 15:30:24,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:24,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:30:24,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566083657] [2019-12-18 15:30:24,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:30:24,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:24,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:30:24,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:30:24,770 INFO L87 Difference]: Start difference. First operand 1024 states and 3009 transitions. Second operand 4 states. [2019-12-18 15:30:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:24,801 INFO L93 Difference]: Finished difference Result 1015 states and 2784 transitions. [2019-12-18 15:30:24,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:30:24,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-18 15:30:24,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:24,809 INFO L225 Difference]: With dead ends: 1015 [2019-12-18 15:30:24,809 INFO L226 Difference]: Without dead ends: 1015 [2019-12-18 15:30:24,810 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 [2019-12-18 15:30:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2019-12-18 15:30:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 977. [2019-12-18 15:30:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2019-12-18 15:30:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 2718 transitions. [2019-12-18 15:30:24,841 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 2718 transitions. Word has length 8 [2019-12-18 15:30:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:24,841 INFO L462 AbstractCegarLoop]: Abstraction has 977 states and 2718 transitions. [2019-12-18 15:30:24,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:30:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 2718 transitions. [2019-12-18 15:30:24,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-18 15:30:24,844 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:24,844 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2019-12-18 15:30:24,844 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:24,845 INFO L82 PathProgramCache]: Analyzing trace with hash 880459202, now seen corresponding path program 1 times [2019-12-18 15:30:24,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:24,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201493564] [2019-12-18 15:30:24,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:24,889 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:30:24,889 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:30:24,890 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:30:24,890 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 15:30:24,897 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,897 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,897 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,897 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,897 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,898 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,898 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,898 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,898 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,898 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,898 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,899 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,899 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,899 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,899 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,899 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,900 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,900 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,900 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,900 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,900 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,900 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,901 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,901 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,901 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,901 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,901 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,901 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,902 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,902 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,902 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,902 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,902 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,904 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,904 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,904 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,905 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,905 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,906 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,906 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,906 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,906 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,907 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,908 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,908 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,908 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,908 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,908 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:24,913 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 15:30:24,914 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:30:24,914 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:30:24,914 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:30:24,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:30:24,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:30:24,914 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:30:24,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:30:24,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:30:24,916 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 87 transitions [2019-12-18 15:30:24,916 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions [2019-12-18 15:30:24,976 INFO L126 PetriNetUnfolder]: 90/608 cut-off events. [2019-12-18 15:30:24,976 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:24,981 INFO L76 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 608 events. 90/608 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2681 event pairs. 109/611 useless extension candidates. Maximal degree in co-relation 345. Up to 32 conditions per place. [2019-12-18 15:30:24,994 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions [2019-12-18 15:30:25,056 INFO L126 PetriNetUnfolder]: 90/608 cut-off events. [2019-12-18 15:30:25,056 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:25,061 INFO L76 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 608 events. 90/608 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2681 event pairs. 109/611 useless extension candidates. Maximal degree in co-relation 345. Up to 32 conditions per place. [2019-12-18 15:30:25,077 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2120 [2019-12-18 15:30:25,077 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:30:26,200 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-12-18 15:30:26,346 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3986 [2019-12-18 15:30:26,346 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2019-12-18 15:30:26,347 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 33 transitions [2019-12-18 15:30:26,685 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5482 states. [2019-12-18 15:30:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5482 states. [2019-12-18 15:30:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:30:26,686 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:26,686 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:30:26,686 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:26,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:26,687 INFO L82 PathProgramCache]: Analyzing trace with hash 21615603, now seen corresponding path program 1 times [2019-12-18 15:30:26,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:26,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878685719] [2019-12-18 15:30:26,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:26,719 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878685719] [2019-12-18 15:30:26,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:26,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:30:26,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124706722] [2019-12-18 15:30:26,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:30:26,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:26,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:30:26,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:26,721 INFO L87 Difference]: Start difference. First operand 5482 states. Second operand 3 states. [2019-12-18 15:30:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:26,794 INFO L93 Difference]: Finished difference Result 5482 states and 19554 transitions. [2019-12-18 15:30:26,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:30:26,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 15:30:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:26,840 INFO L225 Difference]: With dead ends: 5482 [2019-12-18 15:30:26,840 INFO L226 Difference]: Without dead ends: 4856 [2019-12-18 15:30:26,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:26,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2019-12-18 15:30:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4856. [2019-12-18 15:30:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4856 states. [2019-12-18 15:30:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 17428 transitions. [2019-12-18 15:30:27,064 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 17428 transitions. Word has length 4 [2019-12-18 15:30:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:27,064 INFO L462 AbstractCegarLoop]: Abstraction has 4856 states and 17428 transitions. [2019-12-18 15:30:27,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:30:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 17428 transitions. [2019-12-18 15:30:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:30:27,065 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:27,065 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:27,065 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:27,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1297801215, now seen corresponding path program 1 times [2019-12-18 15:30:27,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:27,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050986613] [2019-12-18 15:30:27,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:27,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050986613] [2019-12-18 15:30:27,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699479676] [2019-12-18 15:30:27,102 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 [2019-12-18 15:30:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:27,175 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-18 15:30:27,177 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:30:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:27,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:30:27,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-12-18 15:30:27,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166989540] [2019-12-18 15:30:27,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 15:30:27,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:27,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 15:30:27,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:30:27,219 INFO L87 Difference]: Start difference. First operand 4856 states and 17428 transitions. Second operand 6 states. [2019-12-18 15:30:27,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:27,291 INFO L93 Difference]: Finished difference Result 4856 states and 17424 transitions. [2019-12-18 15:30:27,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:30:27,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-12-18 15:30:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:27,337 INFO L225 Difference]: With dead ends: 4856 [2019-12-18 15:30:27,337 INFO L226 Difference]: Without dead ends: 4856 [2019-12-18 15:30:27,338 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:30:27,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2019-12-18 15:30:27,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4856. [2019-12-18 15:30:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4856 states. [2019-12-18 15:30:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 17424 transitions. [2019-12-18 15:30:27,605 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 17424 transitions. Word has length 8 [2019-12-18 15:30:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:27,606 INFO L462 AbstractCegarLoop]: Abstraction has 4856 states and 17424 transitions. [2019-12-18 15:30:27,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 15:30:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 17424 transitions. [2019-12-18 15:30:27,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:30:27,610 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:27,611 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:27,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:27,816 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:27,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1878298030, now seen corresponding path program 1 times [2019-12-18 15:30:27,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:27,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422757810] [2019-12-18 15:30:27,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:27,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:27,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422757810] [2019-12-18 15:30:27,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290003693] [2019-12-18 15:30:27,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:27,936 INFO L264 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-18 15:30:27,937 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:30:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:27,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:30:27,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-12-18 15:30:27,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339946293] [2019-12-18 15:30:27,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-18 15:30:27,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:27,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-18 15:30:27,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:30:27,969 INFO L87 Difference]: Start difference. First operand 4856 states and 17424 transitions. Second operand 8 states. [2019-12-18 15:30:28,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:28,047 INFO L93 Difference]: Finished difference Result 4856 states and 17408 transitions. [2019-12-18 15:30:28,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:30:28,047 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-12-18 15:30:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:28,077 INFO L225 Difference]: With dead ends: 4856 [2019-12-18 15:30:28,078 INFO L226 Difference]: Without dead ends: 4856 [2019-12-18 15:30:28,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:30:28,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2019-12-18 15:30:28,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4856. [2019-12-18 15:30:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4856 states. [2019-12-18 15:30:28,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 17408 transitions. [2019-12-18 15:30:28,257 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 17408 transitions. Word has length 12 [2019-12-18 15:30:28,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:28,257 INFO L462 AbstractCegarLoop]: Abstraction has 4856 states and 17408 transitions. [2019-12-18 15:30:28,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-18 15:30:28,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 17408 transitions. [2019-12-18 15:30:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-18 15:30:28,259 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:28,259 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:28,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:28,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:28,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:28,471 INFO L82 PathProgramCache]: Analyzing trace with hash -117426822, now seen corresponding path program 1 times [2019-12-18 15:30:28,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:28,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532976439] [2019-12-18 15:30:28,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:28,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532976439] [2019-12-18 15:30:28,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971646689] [2019-12-18 15:30:28,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:28,594 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-18 15:30:28,595 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:30:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:28,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:30:28,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2019-12-18 15:30:28,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70328878] [2019-12-18 15:30:28,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-18 15:30:28,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:28,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-18 15:30:28,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-12-18 15:30:28,641 INFO L87 Difference]: Start difference. First operand 4856 states and 17408 transitions. Second operand 10 states. [2019-12-18 15:30:28,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:28,785 INFO L93 Difference]: Finished difference Result 4856 states and 17344 transitions. [2019-12-18 15:30:28,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 15:30:28,785 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-12-18 15:30:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:28,812 INFO L225 Difference]: With dead ends: 4856 [2019-12-18 15:30:28,813 INFO L226 Difference]: Without dead ends: 4856 [2019-12-18 15:30:28,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-12-18 15:30:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2019-12-18 15:30:28,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4856. [2019-12-18 15:30:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4856 states. [2019-12-18 15:30:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 17344 transitions. [2019-12-18 15:30:28,965 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 17344 transitions. Word has length 16 [2019-12-18 15:30:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:28,966 INFO L462 AbstractCegarLoop]: Abstraction has 4856 states and 17344 transitions. [2019-12-18 15:30:28,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-18 15:30:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 17344 transitions. [2019-12-18 15:30:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 15:30:28,971 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:28,972 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:29,175 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:29,175 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:29,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:29,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1144536387, now seen corresponding path program 1 times [2019-12-18 15:30:29,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:29,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874387763] [2019-12-18 15:30:29,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:29,223 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:30:29,223 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:30:29,224 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:30:29,224 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 15:30:29,233 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,233 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,233 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,233 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,233 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,234 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,234 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,234 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,234 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,234 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,234 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,235 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,235 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,235 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,235 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,235 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,235 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,235 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,236 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,236 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,236 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,238 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,238 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,238 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,238 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,238 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,238 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,238 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,239 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,239 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,239 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,239 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,239 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,239 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,240 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,240 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,240 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,240 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,240 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,241 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,242 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,242 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,242 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,242 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,243 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,244 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,244 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,244 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,244 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,244 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,249 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,249 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,249 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,249 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,249 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,254 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,254 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,254 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,255 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,255 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:29,260 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 15:30:29,260 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:30:29,260 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:30:29,260 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:30:29,260 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:30:29,261 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:30:29,261 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:30:29,261 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:30:29,261 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:30:29,262 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 94 transitions [2019-12-18 15:30:29,262 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 94 transitions [2019-12-18 15:30:29,442 INFO L126 PetriNetUnfolder]: 188/1167 cut-off events. [2019-12-18 15:30:29,443 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:29,453 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1278 conditions, 1167 events. 188/1167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6730 event pairs. 201/1164 useless extension candidates. Maximal degree in co-relation 653. Up to 80 conditions per place. [2019-12-18 15:30:29,486 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 94 transitions [2019-12-18 15:30:29,649 INFO L126 PetriNetUnfolder]: 188/1167 cut-off events. [2019-12-18 15:30:29,650 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:29,663 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1278 conditions, 1167 events. 188/1167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6730 event pairs. 201/1164 useless extension candidates. Maximal degree in co-relation 653. Up to 80 conditions per place. [2019-12-18 15:30:29,690 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2850 [2019-12-18 15:30:29,691 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:30:31,122 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-12-18 15:30:31,250 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6149 [2019-12-18 15:30:31,251 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2019-12-18 15:30:31,251 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 38 transitions [2019-12-18 15:30:33,420 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26310 states. [2019-12-18 15:30:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 26310 states. [2019-12-18 15:30:33,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:30:33,421 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:33,421 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:30:33,421 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:33,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:33,422 INFO L82 PathProgramCache]: Analyzing trace with hash 26696947, now seen corresponding path program 1 times [2019-12-18 15:30:33,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:33,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62264246] [2019-12-18 15:30:33,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:30:33,440 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62264246] [2019-12-18 15:30:33,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:33,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:30:33,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270089712] [2019-12-18 15:30:33,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:30:33,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:33,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:30:33,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:33,442 INFO L87 Difference]: Start difference. First operand 26310 states. Second operand 3 states. [2019-12-18 15:30:33,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:33,610 INFO L93 Difference]: Finished difference Result 26310 states and 110676 transitions. [2019-12-18 15:30:33,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:30:33,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 15:30:33,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:33,714 INFO L225 Difference]: With dead ends: 26310 [2019-12-18 15:30:33,714 INFO L226 Difference]: Without dead ends: 23184 [2019-12-18 15:30:33,714 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:30:34,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23184 states. [2019-12-18 15:30:34,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23184 to 23184. [2019-12-18 15:30:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23184 states. [2019-12-18 15:30:34,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23184 states to 23184 states and 98175 transitions. [2019-12-18 15:30:34,830 INFO L78 Accepts]: Start accepts. Automaton has 23184 states and 98175 transitions. Word has length 4 [2019-12-18 15:30:34,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:34,830 INFO L462 AbstractCegarLoop]: Abstraction has 23184 states and 98175 transitions. [2019-12-18 15:30:34,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:30:34,831 INFO L276 IsEmpty]: Start isEmpty. Operand 23184 states and 98175 transitions. [2019-12-18 15:30:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:30:34,831 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:34,831 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:34,831 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:34,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:34,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1482219427, now seen corresponding path program 1 times [2019-12-18 15:30:34,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:34,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792096697] [2019-12-18 15:30:34,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:34,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-18 15:30:34,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792096697] [2019-12-18 15:30:34,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:30:34,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:30:34,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59974638] [2019-12-18 15:30:34,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:30:34,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:34,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:30:34,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:30:34,866 INFO L87 Difference]: Start difference. First operand 23184 states and 98175 transitions. Second operand 4 states. [2019-12-18 15:30:36,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:36,140 INFO L93 Difference]: Finished difference Result 24543 states and 99524 transitions. [2019-12-18 15:30:36,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:30:36,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-18 15:30:36,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:36,226 INFO L225 Difference]: With dead ends: 24543 [2019-12-18 15:30:36,226 INFO L226 Difference]: Without dead ends: 24543 [2019-12-18 15:30:36,226 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 [2019-12-18 15:30:36,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24543 states. [2019-12-18 15:30:37,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24543 to 23577. [2019-12-18 15:30:37,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23577 states. [2019-12-18 15:30:37,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23577 states to 23577 states and 96338 transitions. [2019-12-18 15:30:37,444 INFO L78 Accepts]: Start accepts. Automaton has 23577 states and 96338 transitions. Word has length 8 [2019-12-18 15:30:37,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:37,445 INFO L462 AbstractCegarLoop]: Abstraction has 23577 states and 96338 transitions. [2019-12-18 15:30:37,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:30:37,445 INFO L276 IsEmpty]: Start isEmpty. Operand 23577 states and 96338 transitions. [2019-12-18 15:30:37,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-18 15:30:37,446 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:37,446 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:37,446 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:37,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:37,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1647353871, now seen corresponding path program 1 times [2019-12-18 15:30:37,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:37,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242702236] [2019-12-18 15:30:37,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:30:37,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242702236] [2019-12-18 15:30:37,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335847781] [2019-12-18 15:30:37,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:37,568 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-18 15:30:37,569 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:30:37,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:30:37,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:30:37,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-12-18 15:30:37,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844284453] [2019-12-18 15:30:37,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 15:30:37,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:37,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 15:30:37,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:30:37,597 INFO L87 Difference]: Start difference. First operand 23577 states and 96338 transitions. Second operand 6 states. [2019-12-18 15:30:37,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:37,743 INFO L93 Difference]: Finished difference Result 23573 states and 96327 transitions. [2019-12-18 15:30:37,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:30:37,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-18 15:30:37,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:37,798 INFO L225 Difference]: With dead ends: 23573 [2019-12-18 15:30:37,798 INFO L226 Difference]: Without dead ends: 23573 [2019-12-18 15:30:37,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:30:38,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23573 states. [2019-12-18 15:30:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23573 to 23573. [2019-12-18 15:30:38,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23573 states. [2019-12-18 15:30:38,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23573 states to 23573 states and 96327 transitions. [2019-12-18 15:30:38,758 INFO L78 Accepts]: Start accepts. Automaton has 23573 states and 96327 transitions. Word has length 16 [2019-12-18 15:30:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:38,758 INFO L462 AbstractCegarLoop]: Abstraction has 23573 states and 96327 transitions. [2019-12-18 15:30:38,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 15:30:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 23573 states and 96327 transitions. [2019-12-18 15:30:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-18 15:30:38,760 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:38,761 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:38,963 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:38,964 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:38,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:38,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1700547162, now seen corresponding path program 1 times [2019-12-18 15:30:38,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:38,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706732086] [2019-12-18 15:30:38,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:30:39,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706732086] [2019-12-18 15:30:39,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729221697] [2019-12-18 15:30:39,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:30:39,062 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-18 15:30:39,063 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:30:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:30:39,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:30:39,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-12-18 15:30:39,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842249470] [2019-12-18 15:30:39,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-18 15:30:39,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:30:39,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-18 15:30:39,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:30:39,103 INFO L87 Difference]: Start difference. First operand 23573 states and 96327 transitions. Second operand 8 states. [2019-12-18 15:30:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:30:39,279 INFO L93 Difference]: Finished difference Result 23557 states and 96271 transitions. [2019-12-18 15:30:39,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:30:39,279 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-12-18 15:30:39,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:30:39,339 INFO L225 Difference]: With dead ends: 23557 [2019-12-18 15:30:39,339 INFO L226 Difference]: Without dead ends: 23557 [2019-12-18 15:30:39,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:30:39,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23557 states. [2019-12-18 15:30:41,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23557 to 23557. [2019-12-18 15:30:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23557 states. [2019-12-18 15:30:41,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23557 states to 23557 states and 96271 transitions. [2019-12-18 15:30:41,231 INFO L78 Accepts]: Start accepts. Automaton has 23557 states and 96271 transitions. Word has length 20 [2019-12-18 15:30:41,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:30:41,231 INFO L462 AbstractCegarLoop]: Abstraction has 23557 states and 96271 transitions. [2019-12-18 15:30:41,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-18 15:30:41,231 INFO L276 IsEmpty]: Start isEmpty. Operand 23557 states and 96271 transitions. [2019-12-18 15:30:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-18 15:30:41,238 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:30:41,238 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:30:41,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:30:41,442 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:30:41,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:30:41,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1187474448, now seen corresponding path program 1 times [2019-12-18 15:30:41,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:30:41,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360256066] [2019-12-18 15:30:41,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:30:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:30:41,471 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:30:41,471 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:30:41,472 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:30:41,472 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-18 15:30:41,480 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,480 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,480 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,481 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,481 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,481 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,481 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,481 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,481 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,481 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,482 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,482 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,482 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,482 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,482 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,482 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,482 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,483 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,483 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,483 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,483 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,483 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,483 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,483 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,484 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,484 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,484 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,484 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,484 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,484 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,484 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,485 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,485 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,485 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,485 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,485 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,485 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,485 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,486 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,486 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,486 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,486 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,486 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,486 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,487 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,487 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,487 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,488 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,488 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,488 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,489 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,489 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,490 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,490 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,490 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,490 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,490 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,492 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,492 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,492 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,494 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,494 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,494 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,495 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,496 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,496 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,496 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:30:41,502 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 15:30:41,502 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:30:41,502 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:30:41,502 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:30:41,503 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:30:41,503 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:30:41,503 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:30:41,503 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:30:41,503 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:30:41,504 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 101 transitions [2019-12-18 15:30:41,504 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions [2019-12-18 15:30:41,896 INFO L126 PetriNetUnfolder]: 398/2286 cut-off events. [2019-12-18 15:30:41,896 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:41,922 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2518 conditions, 2286 events. 398/2286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 16149 event pairs. 378/2266 useless extension candidates. Maximal degree in co-relation 1266. Up to 192 conditions per place. [2019-12-18 15:30:41,980 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions [2019-12-18 15:30:42,568 INFO L126 PetriNetUnfolder]: 398/2286 cut-off events. [2019-12-18 15:30:42,569 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:30:42,593 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2518 conditions, 2286 events. 398/2286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 16149 event pairs. 378/2266 useless extension candidates. Maximal degree in co-relation 1266. Up to 192 conditions per place. [2019-12-18 15:30:42,651 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3660 [2019-12-18 15:30:42,652 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:30:44,145 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-12-18 15:30:44,244 INFO L206 etLargeBlockEncoding]: Checked pairs total: 7553 [2019-12-18 15:30:44,244 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2019-12-18 15:30:44,244 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 43 transitions [2019-12-18 15:31:12,281 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 127122 states. [2019-12-18 15:31:12,281 INFO L276 IsEmpty]: Start isEmpty. Operand 127122 states. [2019-12-18 15:31:12,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:31:12,282 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:31:12,282 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:31:12,282 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:31:12,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:31:12,282 INFO L82 PathProgramCache]: Analyzing trace with hash 32083310, now seen corresponding path program 1 times [2019-12-18 15:31:12,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:31:12,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891851705] [2019-12-18 15:31:12,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:31:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:31:12,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:31:12,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891851705] [2019-12-18 15:31:12,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:31:12,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:31:12,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658981148] [2019-12-18 15:31:12,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:31:12,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:31:12,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:31:12,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:31:12,301 INFO L87 Difference]: Start difference. First operand 127122 states. Second operand 3 states. [2019-12-18 15:31:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:31:13,667 INFO L93 Difference]: Finished difference Result 127122 states and 615398 transitions. [2019-12-18 15:31:13,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:31:13,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 15:31:13,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:31:14,133 INFO L225 Difference]: With dead ends: 127122 [2019-12-18 15:31:14,133 INFO L226 Difference]: Without dead ends: 111496 [2019-12-18 15:31:14,134 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:31:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111496 states. [2019-12-18 15:31:22,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111496 to 111496. [2019-12-18 15:31:22,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111496 states. [2019-12-18 15:31:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111496 states to 111496 states and 543522 transitions. [2019-12-18 15:31:27,887 INFO L78 Accepts]: Start accepts. Automaton has 111496 states and 543522 transitions. Word has length 4 [2019-12-18 15:31:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:31:27,887 INFO L462 AbstractCegarLoop]: Abstraction has 111496 states and 543522 transitions. [2019-12-18 15:31:27,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:31:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand 111496 states and 543522 transitions. [2019-12-18 15:31:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:31:27,888 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:31:27,888 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:31:27,888 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:31:27,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:31:27,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1213874105, now seen corresponding path program 1 times [2019-12-18 15:31:27,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:31:27,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223462720] [2019-12-18 15:31:27,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:31:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:31:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-18 15:31:27,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223462720] [2019-12-18 15:31:27,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:31:27,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:31:27,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866780679] [2019-12-18 15:31:27,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:31:27,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:31:27,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:31:27,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:31:27,918 INFO L87 Difference]: Start difference. First operand 111496 states and 543522 transitions. Second operand 4 states. [2019-12-18 15:31:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:31:29,038 INFO L93 Difference]: Finished difference Result 120747 states and 568406 transitions. [2019-12-18 15:31:29,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:31:29,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-18 15:31:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:31:29,425 INFO L225 Difference]: With dead ends: 120747 [2019-12-18 15:31:29,425 INFO L226 Difference]: Without dead ends: 120747 [2019-12-18 15:31:29,426 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 [2019-12-18 15:31:32,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120747 states. [2019-12-18 15:31:35,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120747 to 116197. [2019-12-18 15:31:35,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116197 states. [2019-12-18 15:31:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116197 states to 116197 states and 549860 transitions. [2019-12-18 15:31:43,631 INFO L78 Accepts]: Start accepts. Automaton has 116197 states and 549860 transitions. Word has length 8 [2019-12-18 15:31:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:31:43,631 INFO L462 AbstractCegarLoop]: Abstraction has 116197 states and 549860 transitions. [2019-12-18 15:31:43,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:31:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 116197 states and 549860 transitions. [2019-12-18 15:31:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-18 15:31:43,632 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:31:43,632 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:31:43,632 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:31:43,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:31:43,633 INFO L82 PathProgramCache]: Analyzing trace with hash 579549320, now seen corresponding path program 1 times [2019-12-18 15:31:43,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:31:43,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833922781] [2019-12-18 15:31:43,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:31:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:31:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:31:43,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833922781] [2019-12-18 15:31:43,673 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136608862] [2019-12-18 15:31:43,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:31:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:31:43,737 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-18 15:31:43,738 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:31:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:31:43,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:31:43,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-12-18 15:31:43,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828787581] [2019-12-18 15:31:43,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 15:31:43,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:31:43,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 15:31:43,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:31:43,766 INFO L87 Difference]: Start difference. First operand 116197 states and 549860 transitions. Second operand 6 states. [2019-12-18 15:31:44,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:31:44,443 INFO L93 Difference]: Finished difference Result 116193 states and 549849 transitions. [2019-12-18 15:31:44,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:31:44,443 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-18 15:31:44,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:31:46,343 INFO L225 Difference]: With dead ends: 116193 [2019-12-18 15:31:46,344 INFO L226 Difference]: Without dead ends: 116193 [2019-12-18 15:31:46,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:31:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116193 states. [2019-12-18 15:31:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116193 to 116193. [2019-12-18 15:31:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116193 states. [2019-12-18 15:31:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116193 states to 116193 states and 549849 transitions. [2019-12-18 15:31:56,039 INFO L78 Accepts]: Start accepts. Automaton has 116193 states and 549849 transitions. Word has length 16 [2019-12-18 15:31:56,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:31:56,039 INFO L462 AbstractCegarLoop]: Abstraction has 116193 states and 549849 transitions. [2019-12-18 15:31:56,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 15:31:56,039 INFO L276 IsEmpty]: Start isEmpty. Operand 116193 states and 549849 transitions. [2019-12-18 15:31:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-18 15:31:56,042 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:31:56,042 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:31:56,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:31:56,246 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:31:56,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:31:56,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1298529040, now seen corresponding path program 1 times [2019-12-18 15:31:56,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:31:56,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072500172] [2019-12-18 15:31:56,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:31:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:31:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:31:56,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072500172] [2019-12-18 15:31:56,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866485268] [2019-12-18 15:31:56,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:31:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:31:56,362 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-18 15:31:56,363 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:31:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:31:56,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:31:56,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-12-18 15:31:56,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845168228] [2019-12-18 15:31:56,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-18 15:31:56,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:31:56,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-18 15:31:56,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:31:56,398 INFO L87 Difference]: Start difference. First operand 116193 states and 549849 transitions. Second operand 8 states. [2019-12-18 15:31:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:31:57,967 INFO L93 Difference]: Finished difference Result 116177 states and 549793 transitions. [2019-12-18 15:31:57,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:31:57,967 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-12-18 15:31:57,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:31:58,357 INFO L225 Difference]: With dead ends: 116177 [2019-12-18 15:31:58,357 INFO L226 Difference]: Without dead ends: 116177 [2019-12-18 15:31:58,357 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:32:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116177 states. [2019-12-18 15:32:07,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116177 to 116177. [2019-12-18 15:32:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116177 states. [2019-12-18 15:32:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116177 states to 116177 states and 549793 transitions. [2019-12-18 15:32:08,178 INFO L78 Accepts]: Start accepts. Automaton has 116177 states and 549793 transitions. Word has length 20 [2019-12-18 15:32:08,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:32:08,178 INFO L462 AbstractCegarLoop]: Abstraction has 116177 states and 549793 transitions. [2019-12-18 15:32:08,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-18 15:32:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 116177 states and 549793 transitions. [2019-12-18 15:32:08,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-18 15:32:08,184 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:32:08,184 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:32:08,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:32:08,388 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:32:08,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:32:08,388 INFO L82 PathProgramCache]: Analyzing trace with hash -982455207, now seen corresponding path program 1 times [2019-12-18 15:32:08,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:32:08,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26462428] [2019-12-18 15:32:08,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:32:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:32:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:32:08,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26462428] [2019-12-18 15:32:08,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294911739] [2019-12-18 15:32:08,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:32:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:32:09,435 INFO L264 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-18 15:32:09,438 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-18 15:32:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:32:09,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-18 15:32:09,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2019-12-18 15:32:09,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839283558] [2019-12-18 15:32:09,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-18 15:32:09,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:32:09,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-18 15:32:09,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2019-12-18 15:32:09,488 INFO L87 Difference]: Start difference. First operand 116177 states and 549793 transitions. Second operand 10 states. [2019-12-18 15:32:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:32:10,167 INFO L93 Difference]: Finished difference Result 116113 states and 549521 transitions. [2019-12-18 15:32:10,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 15:32:10,167 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-12-18 15:32:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:32:10,532 INFO L225 Difference]: With dead ends: 116113 [2019-12-18 15:32:10,532 INFO L226 Difference]: Without dead ends: 116113 [2019-12-18 15:32:10,533 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2019-12-18 15:32:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116113 states. [2019-12-18 15:32:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116113 to 116113. [2019-12-18 15:32:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116113 states. [2019-12-18 15:32:20,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116113 states to 116113 states and 549521 transitions. [2019-12-18 15:32:20,914 INFO L78 Accepts]: Start accepts. Automaton has 116113 states and 549521 transitions. Word has length 24 [2019-12-18 15:32:20,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:32:20,914 INFO L462 AbstractCegarLoop]: Abstraction has 116113 states and 549521 transitions. [2019-12-18 15:32:20,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-18 15:32:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 116113 states and 549521 transitions. [2019-12-18 15:32:20,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-18 15:32:20,933 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:32:20,933 INFO L411 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:32:21,136 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-18 15:32:21,138 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:32:21,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:32:21,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1095808649, now seen corresponding path program 1 times [2019-12-18 15:32:21,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:32:21,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121603400] [2019-12-18 15:32:21,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:32:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:32:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:32:21,184 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:32:21,184 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:32:21,185 WARN L364 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:32:21,185 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2019-12-18 15:32:21,197 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,197 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,198 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,198 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,198 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,198 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,198 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,198 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,199 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,199 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,199 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,199 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,199 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,199 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,200 WARN L315 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,200 WARN L315 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,200 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,200 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,200 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,200 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,200 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,201 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,201 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,201 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,201 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,201 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,201 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,201 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,202 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,202 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,202 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,202 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,202 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,202 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,202 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,203 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,203 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,203 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,203 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,203 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,203 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,203 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,204 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,204 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,204 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,204 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,204 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,204 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,204 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,205 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,205 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,205 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,205 WARN L315 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,205 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,217 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,218 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,218 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,218 WARN L315 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,218 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,221 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,221 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,221 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,221 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,221 WARN L315 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,223 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,223 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,224 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,224 WARN L315 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,224 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,226 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,226 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,227 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,227 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,227 WARN L315 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,230 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,231 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,231 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,231 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,231 WARN L315 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,233 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,233 WARN L315 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,233 WARN L315 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,233 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,233 WARN L315 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:32:21,240 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 15:32:21,241 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:32:21,241 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:32:21,241 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:32:21,241 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:32:21,241 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:32:21,241 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:32:21,241 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:32:21,241 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:32:21,243 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 108 transitions [2019-12-18 15:32:21,243 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 111 places, 108 transitions [2019-12-18 15:32:22,358 INFO L126 PetriNetUnfolder]: 848/4541 cut-off events. [2019-12-18 15:32:22,358 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:32:22,419 INFO L76 FinitePrefix]: Finished finitePrefix Result has 5039 conditions, 4541 events. 848/4541 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 38159 event pairs. 736/4493 useless extension candidates. Maximal degree in co-relation 2504. Up to 448 conditions per place. [2019-12-18 15:32:22,553 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 111 places, 108 transitions [2019-12-18 15:32:24,361 INFO L126 PetriNetUnfolder]: 848/4541 cut-off events. [2019-12-18 15:32:24,361 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:32:24,411 INFO L76 FinitePrefix]: Finished finitePrefix Result has 5039 conditions, 4541 events. 848/4541 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 38159 event pairs. 736/4493 useless extension candidates. Maximal degree in co-relation 2504. Up to 448 conditions per place. [2019-12-18 15:32:24,525 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4550 [2019-12-18 15:32:24,525 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:32:26,229 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-12-18 15:32:26,309 INFO L206 etLargeBlockEncoding]: Checked pairs total: 11010 [2019-12-18 15:32:26,309 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2019-12-18 15:32:26,309 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 48 transitions Received shutdown request... [2019-12-18 15:33:56,304 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 15:33:56,307 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 15:33:56,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:33:56 BasicIcfg [2019-12-18 15:33:56,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:33:56,309 INFO L168 Benchmark]: Toolchain (without parser) took 218990.00 ms. Allocated memory was 146.8 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 101.7 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2019-12-18 15:33:56,309 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 15:33:56,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.49 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 162.7 MB in the end (delta: -61.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:33:56,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.16 ms. Allocated memory is still 203.9 MB. Free memory was 162.7 MB in the beginning and 160.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:33:56,311 INFO L168 Benchmark]: Boogie Preprocessor took 61.97 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 158.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:33:56,311 INFO L168 Benchmark]: RCFGBuilder took 491.91 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 137.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:33:56,312 INFO L168 Benchmark]: TraceAbstraction took 217591.27 ms. Allocated memory was 203.9 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 136.9 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2019-12-18 15:33:56,314 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.49 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 162.7 MB in the end (delta: -61.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 84.16 ms. Allocated memory is still 203.9 MB. Free memory was 162.7 MB in the beginning and 160.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.97 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 158.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.91 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 137.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217591.27 ms. Allocated memory was 203.9 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 136.9 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 14 ProgramPointsAfterwards, 66 TransitionsBefore, 14 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 4 ChoiceCompositions, 183 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 4 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 289 CheckedPairsTotal, 56 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 71 ProgramPointsBefore, 24 ProgramPointsAfterwards, 73 TransitionsBefore, 23 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 457 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1597 CheckedPairsTotal, 55 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 30 ProgramPointsAfterwards, 80 TransitionsBefore, 28 TransitionsAfterwards, 1470 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 760 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2828 CheckedPairsTotal, 56 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 87 ProgramPointsBefore, 36 ProgramPointsAfterwards, 87 TransitionsBefore, 33 TransitionsAfterwards, 2120 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 1032 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 3986 CheckedPairsTotal, 59 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 95 ProgramPointsBefore, 42 ProgramPointsAfterwards, 94 TransitionsBefore, 38 TransitionsAfterwards, 2850 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 1370 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 6149 CheckedPairsTotal, 60 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.7s, 103 ProgramPointsBefore, 48 ProgramPointsAfterwards, 101 TransitionsBefore, 43 TransitionsAfterwards, 3660 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 1751 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 30 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 7553 CheckedPairsTotal, 62 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 5.0s, 111 ProgramPointsBefore, 54 ProgramPointsAfterwards, 108 TransitionsBefore, 48 TransitionsAfterwards, 4550 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 4 ChoiceCompositions, 2261 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 42 SemBasedMoverChecksPositive, 60 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 11010 CheckedPairsTotal, 65 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 54 places, 48 transitions. Already constructed 231840 states. Currently 34132 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Result: TIMEOUT, OverallTime: 95.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown