/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/15_dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:47:03,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:47:03,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:47:03,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:47:03,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:47:03,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:47:03,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:47:03,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:47:03,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:47:03,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:47:03,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:47:03,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:47:03,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:47:03,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:47:03,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:47:03,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:47:03,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:47:03,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:47:03,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:47:03,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:47:03,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:47:03,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:47:03,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:47:03,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:47:03,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:47:03,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:47:03,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:47:03,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:47:03,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:47:03,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:47:03,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:47:03,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:47:03,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:47:03,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:47:03,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:47:03,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:47:03,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:47:03,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:47:03,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:47:03,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:47:03,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:47:03,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 08:47:03,127 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:47:03,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:47:03,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:47:03,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:47:03,131 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:47:03,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:47:03,132 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:47:03,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:47:03,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:47:03,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:47:03,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:47:03,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:47:03,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:47:03,134 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:47:03,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:47:03,134 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:47:03,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:47:03,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:47:03,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:47:03,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:47:03,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:47:03,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:47:03,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:47:03,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:47:03,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:47:03,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:47:03,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:47:03,141 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:47:03,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:47:03,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:47:03,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:47:03,444 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:47:03,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:47:03,449 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:47:03,449 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:47:03,450 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/15_dekker.i [2019-12-27 08:47:03,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4883378/af0c4a569df44e62ab3033e02c3eadf1/FLAGab2955024 [2019-12-27 08:47:04,026 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:47:04,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/15_dekker.i [2019-12-27 08:47:04,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4883378/af0c4a569df44e62ab3033e02c3eadf1/FLAGab2955024 [2019-12-27 08:47:04,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4883378/af0c4a569df44e62ab3033e02c3eadf1 [2019-12-27 08:47:04,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:47:04,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:47:04,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:04,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:47:04,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:47:04,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:04" (1/1) ... [2019-12-27 08:47:04,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad5612a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:04, skipping insertion in model container [2019-12-27 08:47:04,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:04" (1/1) ... [2019-12-27 08:47:04,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:47:04,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:47:04,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:04,924 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:47:05,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:05,089 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:47:05,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05 WrapperNode [2019-12-27 08:47:05,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:05,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:05,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:47:05,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:47:05,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:05,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:47:05,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:47:05,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:47:05,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... [2019-12-27 08:47:05,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:47:05,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:47:05,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:47:05,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:47:05,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:47:05,249 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:47:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:47:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:47:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:47:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:47:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:47:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:47:05,252 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:47:05,631 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:47:05,632 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-27 08:47:05,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:05 BoogieIcfgContainer [2019-12-27 08:47:05,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:47:05,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:47:05,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:47:05,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:47:05,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:47:04" (1/3) ... [2019-12-27 08:47:05,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6403f71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:05, skipping insertion in model container [2019-12-27 08:47:05,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:05" (2/3) ... [2019-12-27 08:47:05,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6403f71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:05, skipping insertion in model container [2019-12-27 08:47:05,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:05" (3/3) ... [2019-12-27 08:47:05,642 INFO L109 eAbstractionObserver]: Analyzing ICFG 15_dekker.i [2019-12-27 08:47:05,651 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:47:05,652 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:47:05,659 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 08:47:05,660 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:47:05,682 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,682 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,682 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,683 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,684 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,684 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,688 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,689 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,689 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,689 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:05,707 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:47:05,726 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:47:05,726 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:47:05,726 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:47:05,726 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:47:05,727 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:47:05,727 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:47:05,727 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:47:05,727 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:47:05,739 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 65 transitions [2019-12-27 08:47:05,774 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 428 states. [2019-12-27 08:47:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states. [2019-12-27 08:47:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:47:05,786 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:05,787 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:05,788 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:05,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:05,795 INFO L82 PathProgramCache]: Analyzing trace with hash -2048152700, now seen corresponding path program 1 times [2019-12-27 08:47:05,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:05,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472725633] [2019-12-27 08:47:05,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:05,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472725633] [2019-12-27 08:47:05,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:05,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:47:05,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504195633] [2019-12-27 08:47:05,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 08:47:05,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:06,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 08:47:06,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:47:06,011 INFO L87 Difference]: Start difference. First operand 428 states. Second operand 2 states. [2019-12-27 08:47:06,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:06,063 INFO L93 Difference]: Finished difference Result 428 states and 928 transitions. [2019-12-27 08:47:06,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 08:47:06,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-27 08:47:06,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:06,089 INFO L225 Difference]: With dead ends: 428 [2019-12-27 08:47:06,089 INFO L226 Difference]: Without dead ends: 373 [2019-12-27 08:47:06,091 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:47:06,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-12-27 08:47:06,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-12-27 08:47:06,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-12-27 08:47:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 818 transitions. [2019-12-27 08:47:06,167 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 818 transitions. Word has length 18 [2019-12-27 08:47:06,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:06,168 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 818 transitions. [2019-12-27 08:47:06,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 08:47:06,168 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 818 transitions. [2019-12-27 08:47:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:47:06,169 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:06,170 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:06,170 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:06,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:06,171 INFO L82 PathProgramCache]: Analyzing trace with hash -2048122909, now seen corresponding path program 1 times [2019-12-27 08:47:06,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:06,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944415679] [2019-12-27 08:47:06,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:06,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944415679] [2019-12-27 08:47:06,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:06,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:06,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881977921] [2019-12-27 08:47:06,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:06,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:06,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:06,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,272 INFO L87 Difference]: Start difference. First operand 373 states and 818 transitions. Second operand 3 states. [2019-12-27 08:47:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:06,335 INFO L93 Difference]: Finished difference Result 378 states and 801 transitions. [2019-12-27 08:47:06,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:06,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-12-27 08:47:06,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:06,339 INFO L225 Difference]: With dead ends: 378 [2019-12-27 08:47:06,340 INFO L226 Difference]: Without dead ends: 279 [2019-12-27 08:47:06,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2019-12-27 08:47:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 264. [2019-12-27 08:47:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-27 08:47:06,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 560 transitions. [2019-12-27 08:47:06,365 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 560 transitions. Word has length 18 [2019-12-27 08:47:06,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:06,366 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 560 transitions. [2019-12-27 08:47:06,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:06,366 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 560 transitions. [2019-12-27 08:47:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:47:06,368 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:06,368 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:06,369 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:06,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:06,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1981881724, now seen corresponding path program 1 times [2019-12-27 08:47:06,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:06,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738647032] [2019-12-27 08:47:06,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:06,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738647032] [2019-12-27 08:47:06,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:06,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:06,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240759099] [2019-12-27 08:47:06,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:06,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:06,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:06,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,435 INFO L87 Difference]: Start difference. First operand 264 states and 560 transitions. Second operand 3 states. [2019-12-27 08:47:06,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:06,455 INFO L93 Difference]: Finished difference Result 247 states and 513 transitions. [2019-12-27 08:47:06,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:06,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-27 08:47:06,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:06,458 INFO L225 Difference]: With dead ends: 247 [2019-12-27 08:47:06,458 INFO L226 Difference]: Without dead ends: 182 [2019-12-27 08:47:06,459 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-12-27 08:47:06,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2019-12-27 08:47:06,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-12-27 08:47:06,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 374 transitions. [2019-12-27 08:47:06,472 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 374 transitions. Word has length 22 [2019-12-27 08:47:06,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:06,472 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 374 transitions. [2019-12-27 08:47:06,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:06,473 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 374 transitions. [2019-12-27 08:47:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-27 08:47:06,475 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:06,475 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:06,475 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:06,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:06,476 INFO L82 PathProgramCache]: Analyzing trace with hash -692445400, now seen corresponding path program 1 times [2019-12-27 08:47:06,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:06,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695914414] [2019-12-27 08:47:06,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:06,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695914414] [2019-12-27 08:47:06,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:06,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:06,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430869207] [2019-12-27 08:47:06,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:06,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:06,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,564 INFO L87 Difference]: Start difference. First operand 182 states and 374 transitions. Second operand 3 states. [2019-12-27 08:47:06,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:06,592 INFO L93 Difference]: Finished difference Result 182 states and 369 transitions. [2019-12-27 08:47:06,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:06,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-27 08:47:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:06,595 INFO L225 Difference]: With dead ends: 182 [2019-12-27 08:47:06,595 INFO L226 Difference]: Without dead ends: 160 [2019-12-27 08:47:06,596 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-12-27 08:47:06,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-12-27 08:47:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-12-27 08:47:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 321 transitions. [2019-12-27 08:47:06,613 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 321 transitions. Word has length 26 [2019-12-27 08:47:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:06,613 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 321 transitions. [2019-12-27 08:47:06,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 321 transitions. [2019-12-27 08:47:06,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-27 08:47:06,618 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:06,618 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:06,618 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:06,620 INFO L82 PathProgramCache]: Analyzing trace with hash 594735373, now seen corresponding path program 1 times [2019-12-27 08:47:06,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:06,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792588543] [2019-12-27 08:47:06,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:06,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792588543] [2019-12-27 08:47:06,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:06,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:06,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243571070] [2019-12-27 08:47:06,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:06,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:06,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:06,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,690 INFO L87 Difference]: Start difference. First operand 160 states and 321 transitions. Second operand 3 states. [2019-12-27 08:47:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:06,703 INFO L93 Difference]: Finished difference Result 103 states and 231 transitions. [2019-12-27 08:47:06,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:06,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-27 08:47:06,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:06,704 INFO L225 Difference]: With dead ends: 103 [2019-12-27 08:47:06,705 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:47:06,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:47:06,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:47:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:47:06,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:47:06,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-12-27 08:47:06,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:06,707 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:47:06,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:06,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:47:06,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:47:06,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:47:06 BasicIcfg [2019-12-27 08:47:06,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:47:06,721 INFO L168 Benchmark]: Toolchain (without parser) took 2353.80 ms. Allocated memory was 143.7 MB in the beginning and 232.3 MB in the end (delta: 88.6 MB). Free memory was 98.7 MB in the beginning and 182.5 MB in the end (delta: -83.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:06,723 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 08:47:06,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.32 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 98.3 MB in the beginning and 160.9 MB in the end (delta: -62.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:06,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.74 ms. Allocated memory is still 201.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:06,732 INFO L168 Benchmark]: Boogie Preprocessor took 26.15 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:06,733 INFO L168 Benchmark]: RCFGBuilder took 444.94 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 137.7 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:06,734 INFO L168 Benchmark]: TraceAbstraction took 1082.31 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 137.0 MB in the beginning and 182.5 MB in the end (delta: -45.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 08:47:06,750 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 724.32 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 98.3 MB in the beginning and 160.9 MB in the end (delta: -62.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.74 ms. Allocated memory is still 201.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.15 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.94 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 137.7 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1082.31 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 137.0 MB in the beginning and 182.5 MB in the end (delta: -45.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 701]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 2 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 312 SDtfs, 117 SDslu, 129 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=428occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 2745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...