/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:14:05,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:14:05,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:14:05,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:14:05,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:14:05,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:14:05,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:14:05,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:14:05,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:14:05,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:14:05,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:14:05,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:14:05,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:14:05,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:14:05,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:14:05,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:14:05,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:14:05,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:14:05,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:14:05,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:14:05,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:14:05,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:14:05,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:14:05,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:14:05,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 22:14:05,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 22:14:05,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 22:14:05,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 22:14:05,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 22:14:05,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 22:14:05,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:14:05,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:14:05,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:14:05,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:14:05,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:14:05,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:14:05,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:14:05,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:14:05,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:14:05,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:14:05,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:14:05,272 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-VariableLbe.epf [2019-12-18 22:14:05,287 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:14:05,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:14:05,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:14:05,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:14:05,288 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:14:05,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:14:05,289 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:14:05,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:14:05,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:14:05,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:14:05,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:14:05,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:14:05,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:14:05,290 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:14:05,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:14:05,291 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:14:05,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:14:05,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:14:05,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:14:05,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:14:05,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:14:05,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:14:05,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:14:05,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:14:05,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:14:05,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:14:05,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:14:05,293 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:14:05,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:14:05,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:14:05,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:14:05,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:14:05,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:14:05,576 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:14:05,577 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:14:05,578 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2019-12-18 22:14:05,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a660e35/b091788a6e9f443188fee88aaddb545b/FLAG01cceb699 [2019-12-18 22:14:06,240 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:14:06,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2019-12-18 22:14:06,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a660e35/b091788a6e9f443188fee88aaddb545b/FLAG01cceb699 [2019-12-18 22:14:06,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a660e35/b091788a6e9f443188fee88aaddb545b [2019-12-18 22:14:06,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:14:06,641 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:14:06,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:14:06,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:14:06,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:14:06,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:14:06" (1/1) ... [2019-12-18 22:14:06,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3599a94a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:06, skipping insertion in model container [2019-12-18 22:14:06,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:14:06" (1/1) ... [2019-12-18 22:14:06,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:14:06,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:14:07,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:14:07,260 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:14:07,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:14:07,421 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:14:07,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07 WrapperNode [2019-12-18 22:14:07,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:14:07,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:14:07,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:14:07,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:14:07,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:14:07,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:14:07,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:14:07,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:14:07,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... [2019-12-18 22:14:07,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:14:07,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:14:07,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:14:07,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:14:07,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:14:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:14:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:14:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:14:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:14:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:14:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:14:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:14:07,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:14:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:14:07,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:14:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:14:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:14:07,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:14:07,563 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:14:07,924 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:14:07,924 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:14:07,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:14:07 BoogieIcfgContainer [2019-12-18 22:14:07,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:14:07,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:14:07,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:14:07,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:14:07,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:14:06" (1/3) ... [2019-12-18 22:14:07,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb73f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:14:07, skipping insertion in model container [2019-12-18 22:14:07,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:14:07" (2/3) ... [2019-12-18 22:14:07,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb73f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:14:07, skipping insertion in model container [2019-12-18 22:14:07,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:14:07" (3/3) ... [2019-12-18 22:14:07,935 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2019-12-18 22:14:07,946 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:14:07,946 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:14:07,954 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:14:07,955 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:14:07,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,984 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,984 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,985 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,985 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,985 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,986 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,986 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,986 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,987 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,987 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,988 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,988 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,988 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,992 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,993 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:07,999 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,000 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,000 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,001 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,007 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,008 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,008 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,008 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:14:08,024 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:14:08,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:14:08,044 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:14:08,044 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:14:08,045 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:14:08,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:14:08,045 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:14:08,045 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:14:08,045 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:14:08,059 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 22:14:08,062 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:14:08,104 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:14:08,104 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:14:08,111 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:14:08,114 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:14:08,131 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:14:08,131 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:14:08,133 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:14:08,135 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:14:08,136 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:14:09,474 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 22:14:09,550 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-18 22:14:09,551 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 22:14:09,556 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 22:14:09,568 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 22:14:09,570 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 22:14:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:14:09,580 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:14:09,581 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:14:09,582 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:14:09,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:14:09,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-18 22:14:09,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:14:09,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784425279] [2019-12-18 22:14:09,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:14:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:14:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:14:09,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784425279] [2019-12-18 22:14:09,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:14:09,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:14:09,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164435554] [2019-12-18 22:14:09,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:14:09,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:14:09,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:14:09,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:14:09,922 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 22:14:09,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:14:09,964 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-18 22:14:09,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:14:09,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:14:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:14:09,994 INFO L225 Difference]: With dead ends: 50 [2019-12-18 22:14:09,998 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:14:09,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:14:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:14:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:14:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:14:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:14:10,039 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 22:14:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:14:10,040 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:14:10,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:14:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:14:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:14:10,041 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:14:10,042 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:14:10,042 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:14:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:14:10,042 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-18 22:14:10,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:14:10,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073995241] [2019-12-18 22:14:10,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:14:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:14:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:14:10,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073995241] [2019-12-18 22:14:10,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:14:10,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:14:10,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709849592] [2019-12-18 22:14:10,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:14:10,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:14:10,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:14:10,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:14:10,131 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 22:14:10,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:14:10,138 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-18 22:14:10,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:14:10,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:14:10,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:14:10,140 INFO L225 Difference]: With dead ends: 32 [2019-12-18 22:14:10,140 INFO L226 Difference]: Without dead ends: 32 [2019-12-18 22:14:10,142 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:14:10,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-18 22:14:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-18 22:14:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-18 22:14:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-18 22:14:10,148 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-18 22:14:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:14:10,148 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-18 22:14:10,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:14:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-18 22:14:10,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:14:10,149 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:14:10,150 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:14:10,150 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:14:10,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:14:10,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-18 22:14:10,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:14:10,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271373153] [2019-12-18 22:14:10,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:14:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:14:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:14:10,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271373153] [2019-12-18 22:14:10,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:14:10,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:14:10,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150074610] [2019-12-18 22:14:10,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:14:10,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:14:10,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:14:10,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:14:10,227 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 4 states. [2019-12-18 22:14:10,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:14:10,251 INFO L93 Difference]: Finished difference Result 37 states and 63 transitions. [2019-12-18 22:14:10,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:14:10,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 22:14:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:14:10,252 INFO L225 Difference]: With dead ends: 37 [2019-12-18 22:14:10,252 INFO L226 Difference]: Without dead ends: 25 [2019-12-18 22:14:10,253 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 [2019-12-18 22:14:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-18 22:14:10,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-18 22:14:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-18 22:14:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 39 transitions. [2019-12-18 22:14:10,260 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 39 transitions. Word has length 10 [2019-12-18 22:14:10,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:14:10,260 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 39 transitions. [2019-12-18 22:14:10,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:14:10,261 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2019-12-18 22:14:10,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:14:10,261 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:14:10,261 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:14:10,262 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:14:10,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:14:10,262 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-18 22:14:10,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:14:10,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872917759] [2019-12-18 22:14:10,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:14:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:14:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:14:10,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872917759] [2019-12-18 22:14:10,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:14:10,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:14:10,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366993556] [2019-12-18 22:14:10,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:14:10,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:14:10,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:14:10,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:14:10,359 INFO L87 Difference]: Start difference. First operand 25 states and 39 transitions. Second operand 4 states. [2019-12-18 22:14:10,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:14:10,390 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2019-12-18 22:14:10,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:14:10,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:14:10,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:14:10,391 INFO L225 Difference]: With dead ends: 29 [2019-12-18 22:14:10,391 INFO L226 Difference]: Without dead ends: 15 [2019-12-18 22:14:10,392 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 [2019-12-18 22:14:10,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-18 22:14:10,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-18 22:14:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-18 22:14:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-18 22:14:10,394 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-18 22:14:10,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:14:10,395 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-18 22:14:10,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:14:10,395 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-18 22:14:10,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:14:10,395 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:14:10,396 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:14:10,396 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:14:10,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:14:10,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1231559623, now seen corresponding path program 2 times [2019-12-18 22:14:10,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:14:10,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200363009] [2019-12-18 22:14:10,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:14:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:14:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:14:10,440 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200363009] [2019-12-18 22:14:10,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:14:10,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:14:10,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267107690] [2019-12-18 22:14:10,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:14:10,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:14:10,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:14:10,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:14:10,442 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-18 22:14:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:14:10,462 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-18 22:14:10,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:14:10,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:14:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:14:10,463 INFO L225 Difference]: With dead ends: 14 [2019-12-18 22:14:10,463 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:14:10,464 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 [2019-12-18 22:14:10,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:14:10,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:14:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:14:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:14:10,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:14:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:14:10,465 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:14:10,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:14:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:14:10,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:14:10,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:14:10 BasicIcfg [2019-12-18 22:14:10,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:14:10,475 INFO L168 Benchmark]: Toolchain (without parser) took 3831.76 ms. Allocated memory was 138.9 MB in the beginning and 246.4 MB in the end (delta: 107.5 MB). Free memory was 101.3 MB in the beginning and 162.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2019-12-18 22:14:10,476 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 22:14:10,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.23 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 158.9 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-18 22:14:10,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.04 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. [2019-12-18 22:14:10,479 INFO L168 Benchmark]: Boogie Preprocessor took 23.90 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 22:14:10,479 INFO L168 Benchmark]: RCFGBuilder took 431.90 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 135.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-18 22:14:10,480 INFO L168 Benchmark]: TraceAbstraction took 2543.28 ms. Allocated memory was 201.9 MB in the beginning and 246.4 MB in the end (delta: 44.6 MB). Free memory was 134.4 MB in the beginning and 162.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-12-18 22:14:10,484 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.23 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 158.9 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.04 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. * Boogie Preprocessor took 23.90 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.90 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 135.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2543.28 ms. Allocated memory was 201.9 MB in the beginning and 246.4 MB in the end (delta: 44.6 MB). Free memory was 134.4 MB in the beginning and 162.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 27 SDslu, 26 SDs, 0 SdLazy, 23 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 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...