/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:30:27,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:30:27,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:30:27,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:30:27,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:30:27,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:30:27,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:30:27,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:30:27,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:30:27,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:30:27,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:30:27,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:30:27,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:30:27,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:30:27,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:30:27,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:30:27,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:30:27,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:30:27,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:30:27,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:30:27,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:30:27,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:30:27,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:30:27,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:30:27,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:30:27,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:30:27,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:30:27,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:30:27,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:30:27,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:30:27,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:30:27,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:30:27,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:30:27,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:30:27,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:30:27,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:30:27,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:30:27,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:30:27,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:30:27,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:30:27,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:30:27,316 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.epf [2019-12-18 18:30:27,329 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:30:27,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:30:27,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:30:27,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:30:27,331 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:30:27,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:30:27,331 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:30:27,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:30:27,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:30:27,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:30:27,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:30:27,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:30:27,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:30:27,333 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:30:27,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:30:27,333 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:30:27,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:30:27,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:30:27,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:30:27,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:30:27,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:30:27,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:30:27,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:30:27,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:30:27,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:30:27,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:30:27,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:30:27,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:30:27,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:30:27,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:30:27,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:30:27,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:30:27,657 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:30:27,657 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:30:27,658 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2019-12-18 18:30:27,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084862c74/b371d0465e1042d3bdb3ce1601879b88/FLAG40ff39905 [2019-12-18 18:30:28,338 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:30:28,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2019-12-18 18:30:28,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084862c74/b371d0465e1042d3bdb3ce1601879b88/FLAG40ff39905 [2019-12-18 18:30:28,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084862c74/b371d0465e1042d3bdb3ce1601879b88 [2019-12-18 18:30:28,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:30:28,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:30:28,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:30:28,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:30:28,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:30:28,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:30:28" (1/1) ... [2019-12-18 18:30:28,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2908c1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:28, skipping insertion in model container [2019-12-18 18:30:28,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:30:28" (1/1) ... [2019-12-18 18:30:28,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:30:28,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:30:29,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:30:29,098 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:30:29,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:30:29,251 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:30:29,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29 WrapperNode [2019-12-18 18:30:29,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:30:29,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:30:29,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:30:29,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:30:29,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:30:29,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:30:29,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:30:29,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:30:29,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (1/1) ... [2019-12-18 18:30:29,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:30:29,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:30:29,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:30:29,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:30:29,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (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 18:30:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:30:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:30:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:30:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:30:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:30:29,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:30:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:30:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:30:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:30:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:30:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:30:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:30:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:30:29,409 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 18:30:29,776 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:30:29,776 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:30:29,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:30:29 BoogieIcfgContainer [2019-12-18 18:30:29,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:30:29,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:30:29,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:30:29,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:30:29,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:30:28" (1/3) ... [2019-12-18 18:30:29,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e8f0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:30:29, skipping insertion in model container [2019-12-18 18:30:29,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:30:29" (2/3) ... [2019-12-18 18:30:29,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e8f0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:30:29, skipping insertion in model container [2019-12-18 18:30:29,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:30:29" (3/3) ... [2019-12-18 18:30:29,785 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2019-12-18 18:30:29,793 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:30:29,794 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:30:29,803 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:30:29,804 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:30:29,837 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,837 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,838 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,838 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,838 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,839 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,839 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,840 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,840 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,840 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,840 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,841 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,841 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,841 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,841 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,842 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,842 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,845 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,846 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,846 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,846 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,856 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,857 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,857 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,857 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,860 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,861 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,861 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,861 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:30:29,878 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:30:29,895 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:30:29,896 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:30:29,896 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:30:29,896 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:30:29,896 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:30:29,896 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:30:29,897 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:30:29,897 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:30:29,913 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 18:30:29,916 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:30:29,962 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:30:29,962 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:30:29,969 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 18:30:29,971 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:30:29,992 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:30:29,992 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:30:29,996 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 18:30:29,998 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:30:30,000 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:30:31,505 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-18 18:30:31,506 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 18:30:31,509 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 18:30:31,518 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 18:30:31,520 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 18:30:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:30:31,527 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:30:31,528 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:30:31,528 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:30:31,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:30:31,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-18 18:30:31,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:30:31,543 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859407395] [2019-12-18 18:30:31,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:30:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:30:31,761 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 18:30:31,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859407395] [2019-12-18 18:30:31,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:30:31,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:30:31,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745577221] [2019-12-18 18:30:31,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:30:31,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:30:31,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:30:31,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:30:31,784 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 18:30:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:30:31,814 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-18 18:30:31,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:30:31,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:30:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:30:31,845 INFO L225 Difference]: With dead ends: 50 [2019-12-18 18:30:31,845 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:30:31,846 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 18:30:31,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:30:31,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:30:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:30:31,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:30:31,895 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 18:30:31,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:30:31,896 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:30:31,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:30:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:30:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:30:31,898 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:30:31,899 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:30:31,899 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:30:31,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:30:31,899 INFO L82 PathProgramCache]: Analyzing trace with hash -939391706, now seen corresponding path program 1 times [2019-12-18 18:30:31,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:30:31,900 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114758739] [2019-12-18 18:30:31,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:30:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:30:31,989 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 18:30:31,990 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114758739] [2019-12-18 18:30:31,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:30:31,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:30:31,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727892002] [2019-12-18 18:30:31,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:30:31,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:30:31,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:30:31,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:30:31,993 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 18:30:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:30:32,014 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 18:30:32,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:30:32,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 18:30:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:30:32,018 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:30:32,018 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 18:30:32,019 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 18:30:32,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 18:30:32,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 18:30:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 18:30:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 18:30:32,024 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 18:30:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:30:32,025 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 18:30:32,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:30:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 18:30:32,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:30:32,026 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:30:32,026 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:30:32,026 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:30:32,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:30:32,026 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 1 times [2019-12-18 18:30:32,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:30:32,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299571205] [2019-12-18 18:30:32,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:30:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:30:32,076 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 18:30:32,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299571205] [2019-12-18 18:30:32,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:30:32,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:30:32,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801598378] [2019-12-18 18:30:32,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:30:32,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:30:32,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:30:32,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:30:32,078 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-18 18:30:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:30:32,086 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-18 18:30:32,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:30:32,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 18:30:32,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:30:32,087 INFO L225 Difference]: With dead ends: 29 [2019-12-18 18:30:32,087 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 18:30:32,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:30:32,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 18:30:32,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 18:30:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 18:30:32,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 18:30:32,091 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 18:30:32,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:30:32,091 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 18:30:32,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:30:32,092 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 18:30:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:30:32,092 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:30:32,092 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:30:32,092 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:30:32,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:30:32,093 INFO L82 PathProgramCache]: Analyzing trace with hash -867176101, now seen corresponding path program 1 times [2019-12-18 18:30:32,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:30:32,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585227957] [2019-12-18 18:30:32,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:30:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:30:32,148 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 18:30:32,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585227957] [2019-12-18 18:30:32,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:30:32,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:30:32,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457514641] [2019-12-18 18:30:32,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:30:32,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:30:32,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:30:32,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:30:32,150 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 18:30:32,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:30:32,163 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 18:30:32,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:30:32,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:30:32,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:30:32,164 INFO L225 Difference]: With dead ends: 16 [2019-12-18 18:30:32,164 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:30:32,164 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 18:30:32,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:30:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:30:32,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:30:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:30:32,165 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:30:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:30:32,166 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:30:32,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:30:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:30:32,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:30:32,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:30:32 BasicIcfg [2019-12-18 18:30:32,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:30:32,172 INFO L168 Benchmark]: Toolchain (without parser) took 3584.91 ms. Allocated memory was 145.2 MB in the beginning and 248.0 MB in the end (delta: 102.8 MB). Free memory was 101.7 MB in the beginning and 157.2 MB in the end (delta: -55.5 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:30:32,173 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 18:30:32,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.63 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.5 MB in the beginning and 160.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:30:32,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:30:32,176 INFO L168 Benchmark]: Boogie Preprocessor took 27.18 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:30:32,177 INFO L168 Benchmark]: RCFGBuilder took 445.85 ms. Allocated memory is still 202.9 MB. Free memory was 156.1 MB in the beginning and 136.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:30:32,178 INFO L168 Benchmark]: TraceAbstraction took 2391.50 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 135.4 MB in the beginning and 157.2 MB in the end (delta: -21.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:30:32,182 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.63 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.5 MB in the beginning and 160.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.18 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 445.85 ms. Allocated memory is still 202.9 MB. Free memory was 156.1 MB in the beginning and 136.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2391.50 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 135.4 MB in the beginning and 157.2 MB in the end (delta: -21.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 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: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 25 SDslu, 19 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 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...