/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:36:07,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:36:07,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:36:07,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:36:07,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:36:07,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:36:07,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:36:07,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:36:07,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:36:07,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:36:07,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:36:07,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:36:07,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:36:07,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:36:07,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:36:07,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:36:07,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:36:07,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:36:07,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:36:07,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:36:07,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:36:07,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:36:07,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:36:07,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:36:07,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:36:07,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:36:07,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:36:07,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:36:07,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:36:07,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:36:07,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:36:07,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:36:07,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:36:07,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:36:07,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:36:07,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:36:07,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:36:07,355 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:36:07,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:36:07,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:36:07,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:36:07,357 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:36:07,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:36:07,358 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:36:07,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:36:07,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:36:07,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:36:07,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:36:07,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:36:07,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:36:07,359 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:36:07,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:36:07,359 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:36:07,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:36:07,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:36:07,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:36:07,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:36:07,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:36:07,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:36:07,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:36:07,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:36:07,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:36:07,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:36:07,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:36:07,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:36:07,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:36:07,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:36:07,640 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:36:07,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:36:07,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:36:07,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:36:07,658 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:36:07,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2019-12-18 14:36:07,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da5ab8f63/9136b30f77be4aedac807d8d7cb49939/FLAGc41b6afab [2019-12-18 14:36:08,263 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:36:08,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2019-12-18 14:36:08,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da5ab8f63/9136b30f77be4aedac807d8d7cb49939/FLAGc41b6afab [2019-12-18 14:36:08,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da5ab8f63/9136b30f77be4aedac807d8d7cb49939 [2019-12-18 14:36:08,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:36:08,583 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:36:08,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:36:08,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:36:08,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:36:08,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:36:08" (1/1) ... [2019-12-18 14:36:08,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2075a967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:08, skipping insertion in model container [2019-12-18 14:36:08,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:36:08" (1/1) ... [2019-12-18 14:36:08,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:36:08,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:36:09,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:36:09,123 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:36:09,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:36:09,277 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:36:09,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09 WrapperNode [2019-12-18 14:36:09,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:36:09,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:36:09,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:36:09,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:36:09,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:36:09,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:36:09,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:36:09,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:36:09,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (1/1) ... [2019-12-18 14:36:09,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:36:09,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:36:09,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:36:09,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:36:09,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (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 14:36:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:36:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:36:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:36:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:36:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:36:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:36:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:36:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:36:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:36:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:36:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:36:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:36:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:36:09,425 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 14:36:09,808 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:36:09,809 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:36:09,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:36:09 BoogieIcfgContainer [2019-12-18 14:36:09,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:36:09,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:36:09,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:36:09,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:36:09,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:36:08" (1/3) ... [2019-12-18 14:36:09,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1c4f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:36:09, skipping insertion in model container [2019-12-18 14:36:09,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:36:09" (2/3) ... [2019-12-18 14:36:09,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1c4f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:36:09, skipping insertion in model container [2019-12-18 14:36:09,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:36:09" (3/3) ... [2019-12-18 14:36:09,825 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2019-12-18 14:36:09,834 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:36:09,835 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:36:09,842 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:36:09,843 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:36:09,878 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,878 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,878 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,879 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,879 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,879 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,880 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,880 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,880 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,880 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,882 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,882 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,882 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,883 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,883 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,883 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,883 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,884 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,891 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,891 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,891 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,892 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,898 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,899 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,899 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,899 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,904 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:36:09,918 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:36:09,934 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:36:09,934 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:36:09,934 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:36:09,934 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:36:09,934 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:36:09,935 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:36:09,935 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:36:09,935 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:36:09,946 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 14:36:09,949 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:36:09,988 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:36:09,989 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:36:09,998 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:36:10,001 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:36:10,018 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:36:10,018 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:36:10,019 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:36:10,021 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:36:10,022 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:36:11,540 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-18 14:36:11,540 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 14:36:11,546 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:36:11,561 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:36:11,563 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:36:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:36:11,572 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:36:11,573 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:36:11,574 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:36:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:36:11,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-18 14:36:11,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:36:11,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739265651] [2019-12-18 14:36:11,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:36:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:36:11,821 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 14:36:11,822 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739265651] [2019-12-18 14:36:11,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:36:11,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:36:11,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596279531] [2019-12-18 14:36:11,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:36:11,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:36:11,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:36:11,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:36:11,843 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:36:11,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:36:11,884 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 14:36:11,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:36:11,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:36:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:36:11,898 INFO L225 Difference]: With dead ends: 44 [2019-12-18 14:36:11,899 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 14:36:11,903 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 14:36:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 14:36:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 14:36:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 14:36:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 14:36:11,944 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 14:36:11,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:36:11,945 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 14:36:11,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:36:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 14:36:11,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:36:11,948 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:36:11,948 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:36:11,949 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:36:11,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:36:11,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-18 14:36:11,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:36:11,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006824543] [2019-12-18 14:36:11,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:36:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:36:12,055 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 14:36:12,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006824543] [2019-12-18 14:36:12,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:36:12,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:36:12,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306479633] [2019-12-18 14:36:12,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:36:12,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:36:12,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:36:12,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:36:12,060 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 14:36:12,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:36:12,068 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 14:36:12,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:36:12,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:36:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:36:12,070 INFO L225 Difference]: With dead ends: 34 [2019-12-18 14:36:12,070 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:36:12,071 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 14:36:12,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:36:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:36:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:36:12,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:36:12,077 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 14:36:12,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:36:12,078 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:36:12,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:36:12,078 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:36:12,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:36:12,079 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:36:12,079 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:36:12,080 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:36:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:36:12,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-18 14:36:12,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:36:12,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685275732] [2019-12-18 14:36:12,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:36:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:36:12,139 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 14:36:12,139 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685275732] [2019-12-18 14:36:12,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:36:12,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:36:12,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749161109] [2019-12-18 14:36:12,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:36:12,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:36:12,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:36:12,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:36:12,142 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 14:36:12,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:36:12,176 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:36:12,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:36:12,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:36:12,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:36:12,178 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:36:12,178 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 14:36:12,179 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 14:36:12,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 14:36:12,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 14:36:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:36:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 14:36:12,185 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 14:36:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:36:12,186 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 14:36:12,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:36:12,187 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 14:36:12,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:36:12,188 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:36:12,188 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:36:12,188 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:36:12,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:36:12,189 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-18 14:36:12,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:36:12,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210855436] [2019-12-18 14:36:12,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:36:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:36:12,252 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 14:36:12,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210855436] [2019-12-18 14:36:12,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:36:12,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:36:12,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596769741] [2019-12-18 14:36:12,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:36:12,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:36:12,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:36:12,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:36:12,255 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-18 14:36:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:36:12,292 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-18 14:36:12,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:36:12,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:36:12,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:36:12,294 INFO L225 Difference]: With dead ends: 33 [2019-12-18 14:36:12,294 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 14:36:12,294 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 14:36:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 14:36:12,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 14:36:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 14:36:12,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-18 14:36:12,301 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-18 14:36:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:36:12,301 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-18 14:36:12,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:36:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-18 14:36:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:36:12,302 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:36:12,302 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:36:12,304 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:36:12,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:36:12,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-18 14:36:12,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:36:12,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151548754] [2019-12-18 14:36:12,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:36:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:36:12,374 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 14:36:12,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151548754] [2019-12-18 14:36:12,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:36:12,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:36:12,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431575457] [2019-12-18 14:36:12,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:36:12,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:36:12,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:36:12,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:36:12,377 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-18 14:36:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:36:12,394 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-18 14:36:12,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:36:12,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:36:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:36:12,395 INFO L225 Difference]: With dead ends: 20 [2019-12-18 14:36:12,395 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:36:12,396 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 14:36:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:36:12,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:36:12,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:36:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:36:12,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:36:12,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:36:12,397 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:36:12,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:36:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:36:12,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:36:12,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:36:12 BasicIcfg [2019-12-18 14:36:12,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:36:12,404 INFO L168 Benchmark]: Toolchain (without parser) took 3820.61 ms. Allocated memory was 146.3 MB in the beginning and 244.8 MB in the end (delta: 98.6 MB). Free memory was 102.4 MB in the beginning and 152.4 MB in the end (delta: -50.0 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:36:12,405 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 14:36:12,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.76 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 161.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:36:12,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.48 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:36:12,408 INFO L168 Benchmark]: Boogie Preprocessor took 28.24 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:36:12,409 INFO L168 Benchmark]: RCFGBuilder took 452.59 ms. Allocated memory is still 204.5 MB. Free memory was 158.3 MB in the beginning and 137.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:36:12,410 INFO L168 Benchmark]: TraceAbstraction took 2590.45 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 137.7 MB in the beginning and 152.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:36:12,414 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.76 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 161.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.48 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.24 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.59 ms. Allocated memory is still 204.5 MB. Free memory was 158.3 MB in the beginning and 137.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2590.45 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 137.7 MB in the beginning and 152.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 444 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 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...