/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:53:17,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:53:17,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:53:18,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:53:18,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:53:18,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:53:18,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:53:18,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:53:18,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:53:18,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:53:18,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:53:18,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:53:18,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:53:18,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:53:18,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:53:18,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:53:18,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:53:18,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:53:18,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:53:18,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:53:18,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:53:18,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:53:18,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:53:18,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:53:18,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:53:18,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:53:18,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:53:18,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:53:18,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:53:18,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:53:18,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:53:18,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:53:18,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:53:18,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:53:18,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:53:18,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:53:18,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf [2019-12-27 18:53:18,086 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:53:18,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:53:18,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:53:18,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:53:18,088 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:53:18,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:53:18,088 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:53:18,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:53:18,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:53:18,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:53:18,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:53:18,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:53:18,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:53:18,089 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:53:18,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:53:18,091 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:53:18,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:53:18,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:53:18,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:53:18,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:53:18,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:53:18,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:53:18,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:53:18,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:53:18,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:53:18,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:53:18,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:53:18,093 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:53:18,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:53:18,093 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:53:18,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:53:18,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:53:18,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:53:18,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:53:18,384 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:53:18,384 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:53:18,385 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2019-12-27 18:53:18,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf24e3785/b995921f408146dba000f720a53c28b6/FLAG982d1babe [2019-12-27 18:53:18,992 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:53:18,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2019-12-27 18:53:19,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf24e3785/b995921f408146dba000f720a53c28b6/FLAG982d1babe [2019-12-27 18:53:19,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf24e3785/b995921f408146dba000f720a53c28b6 [2019-12-27 18:53:19,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:53:19,299 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:53:19,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:19,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:53:19,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:53:19,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:19" (1/1) ... [2019-12-27 18:53:19,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e8aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:19, skipping insertion in model container [2019-12-27 18:53:19,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:19" (1/1) ... [2019-12-27 18:53:19,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:53:19,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:53:19,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:19,884 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:53:19,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:20,014 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:53:20,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20 WrapperNode [2019-12-27 18:53:20,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:20,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:20,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:53:20,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:53:20,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:20,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:53:20,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:53:20,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:53:20,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (1/1) ... [2019-12-27 18:53:20,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:53:20,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:53:20,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:53:20,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:53:20,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (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 18:53:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:53:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:53:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:53:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:53:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:53:20,177 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:53:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:53:20,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:53:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:53:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:53:20,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:53:20,181 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 18:53:20,539 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:53:20,540 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:53:20,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:20 BoogieIcfgContainer [2019-12-27 18:53:20,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:53:20,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:53:20,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:53:20,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:53:20,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:53:19" (1/3) ... [2019-12-27 18:53:20,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2c5696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:20, skipping insertion in model container [2019-12-27 18:53:20,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:20" (2/3) ... [2019-12-27 18:53:20,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2c5696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:20, skipping insertion in model container [2019-12-27 18:53:20,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:20" (3/3) ... [2019-12-27 18:53:20,550 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_tso.opt.i [2019-12-27 18:53:20,561 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:53:20,561 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:53:20,569 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:53:20,570 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:53:20,596 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,596 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,597 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,597 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,598 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,598 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,598 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,599 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,599 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,599 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,600 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,600 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,611 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,611 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,611 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,612 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:20,627 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 18:53:20,649 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:53:20,650 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:53:20,650 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:53:20,650 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:53:20,650 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:53:20,651 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:53:20,651 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:53:20,651 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:53:20,665 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 43 transitions [2019-12-27 18:53:20,667 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-27 18:53:20,705 INFO L132 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-27 18:53:20,706 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:20,710 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-27 18:53:20,712 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-27 18:53:20,729 INFO L132 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-27 18:53:20,729 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:20,731 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-27 18:53:20,732 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 234 [2019-12-27 18:53:20,733 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:53:22,108 INFO L206 etLargeBlockEncoding]: Checked pairs total: 242 [2019-12-27 18:53:22,109 INFO L214 etLargeBlockEncoding]: Total number of compositions: 37 [2019-12-27 18:53:22,112 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 11 transitions [2019-12-27 18:53:22,133 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22 states. [2019-12-27 18:53:22,135 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-27 18:53:22,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 18:53:22,141 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:22,142 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-27 18:53:22,143 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:22,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:22,149 INFO L82 PathProgramCache]: Analyzing trace with hash 550784875, now seen corresponding path program 1 times [2019-12-27 18:53:22,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:22,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551688253] [2019-12-27 18:53:22,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:22,419 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 18:53:22,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551688253] [2019-12-27 18:53:22,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:22,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:53:22,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [639105274] [2019-12-27 18:53:22,423 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:22,428 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:22,442 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 7 states and 6 transitions. [2019-12-27 18:53:22,442 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:22,446 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:22,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:22,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:22,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:22,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:22,464 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2019-12-27 18:53:22,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:22,530 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 18:53:22,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:22,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-27 18:53:22,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:22,541 INFO L225 Difference]: With dead ends: 23 [2019-12-27 18:53:22,541 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 18:53:22,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 18:53:22,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 18:53:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 18:53:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-12-27 18:53:22,575 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 22 transitions. Word has length 6 [2019-12-27 18:53:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:22,576 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-27 18:53:22,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2019-12-27 18:53:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 18:53:22,577 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:22,577 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:22,577 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:22,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:22,578 INFO L82 PathProgramCache]: Analyzing trace with hash -105739058, now seen corresponding path program 1 times [2019-12-27 18:53:22,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:22,578 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506727481] [2019-12-27 18:53:22,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:22,689 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 18:53:22,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506727481] [2019-12-27 18:53:22,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:22,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:22,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [644536942] [2019-12-27 18:53:22,691 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:22,692 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:22,694 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 11 transitions. [2019-12-27 18:53:22,695 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:22,696 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:22,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:53:22,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:22,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:53:22,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:22,698 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. Second operand 5 states. [2019-12-27 18:53:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:22,750 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-12-27 18:53:22,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:53:22,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-27 18:53:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:22,752 INFO L225 Difference]: With dead ends: 15 [2019-12-27 18:53:22,752 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 18:53:22,753 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:53:22,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 18:53:22,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 18:53:22,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 18:53:22,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-27 18:53:22,756 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2019-12-27 18:53:22,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:22,756 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-27 18:53:22,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:53:22,757 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-27 18:53:22,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:53:22,757 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:22,757 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:22,758 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:22,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:22,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1017118813, now seen corresponding path program 1 times [2019-12-27 18:53:22,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:22,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905355055] [2019-12-27 18:53:22,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:22,834 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 18:53:22,836 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905355055] [2019-12-27 18:53:22,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:22,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:22,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1127770342] [2019-12-27 18:53:22,837 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:22,837 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:22,841 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 12 transitions. [2019-12-27 18:53:22,842 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:22,842 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:22,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:22,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:22,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:22,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:22,846 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-12-27 18:53:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:22,864 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-12-27 18:53:22,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:22,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 18:53:22,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:22,866 INFO L225 Difference]: With dead ends: 14 [2019-12-27 18:53:22,866 INFO L226 Difference]: Without dead ends: 9 [2019-12-27 18:53:22,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-27 18:53:22,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-27 18:53:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-27 18:53:22,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-12-27 18:53:22,869 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2019-12-27 18:53:22,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:22,869 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-12-27 18:53:22,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:22,870 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-12-27 18:53:22,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:53:22,871 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:22,872 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:22,872 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:22,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1025277703, now seen corresponding path program 2 times [2019-12-27 18:53:22,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:22,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627066038] [2019-12-27 18:53:22,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:22,954 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 18:53:22,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627066038] [2019-12-27 18:53:22,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:22,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:22,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1760041663] [2019-12-27 18:53:22,955 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:22,956 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:22,957 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:53:22,958 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:22,958 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:22,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:22,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:22,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:22,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:22,959 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 4 states. [2019-12-27 18:53:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:22,971 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-12-27 18:53:22,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:22,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 18:53:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:22,971 INFO L225 Difference]: With dead ends: 8 [2019-12-27 18:53:22,971 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:53:22,972 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:53:22,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:53:22,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:53:22,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:53:22,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-27 18:53:22,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:22,973 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:53:22,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:22,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:53:22,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:53:22,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:53:22 BasicIcfg [2019-12-27 18:53:22,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:53:22,981 INFO L168 Benchmark]: Toolchain (without parser) took 3681.70 ms. Allocated memory was 146.8 MB in the beginning and 243.8 MB in the end (delta: 97.0 MB). Free memory was 102.3 MB in the beginning and 159.1 MB in the end (delta: -56.8 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:22,982 INFO L168 Benchmark]: CDTParser took 0.18 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 18:53:22,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.20 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 161.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:22,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.36 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:22,985 INFO L168 Benchmark]: Boogie Preprocessor took 27.34 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:22,986 INFO L168 Benchmark]: RCFGBuilder took 448.90 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 139.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:22,987 INFO L168 Benchmark]: TraceAbstraction took 2435.40 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 139.3 MB in the beginning and 159.1 MB in the end (delta: -19.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:22,991 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 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.20 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 161.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.36 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.34 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.90 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 139.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2435.40 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 139.3 MB in the beginning and 159.1 MB in the end (delta: -19.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 49 ProgramPointsBefore, 15 ProgramPointsAfterwards, 43 TransitionsBefore, 11 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 118 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 242 CheckedPairsTotal, 37 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 43 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 19 SDslu, 26 SDs, 0 SdLazy, 29 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...