/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/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:42:49,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:42:49,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:42:49,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:42:49,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:42:49,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:42:49,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:42:49,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:42:49,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:42:49,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:42:49,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:42:49,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:42:49,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:42:49,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:42:49,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:42:49,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:42:49,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:42:49,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:42:49,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:42:49,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:42:49,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:42:49,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:42:49,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:42:49,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:42:49,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-26 23:42:49,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-26 23:42:49,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-26 23:42:49,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-26 23:42:49,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-26 23:42:49,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-26 23:42:49,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:42:49,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:42:49,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:42:49,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:42:49,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:42:49,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:42:49,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:42:49,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:42:49,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:42:49,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:42:49,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:42:49,284 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 [2019-12-26 23:42:49,301 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:42:49,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:42:49,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:42:49,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:42:49,303 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:42:49,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:42:49,304 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:42:49,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:42:49,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:42:49,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:42:49,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:42:49,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:42:49,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:42:49,305 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:42:49,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:42:49,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:42:49,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:42:49,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:42:49,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:42:49,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:42:49,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:42:49,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:42:49,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:42:49,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:42:49,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:42:49,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:42:49,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:42:49,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:42:49,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:42:49,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:42:49,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:42:49,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:42:49,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:42:49,663 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:42:49,663 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:42:49,664 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-26 23:42:49,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d46964c/a0398b9f4bf24250ac13b9e38fd9cf2d/FLAG19e20ee15 [2019-12-26 23:42:50,248 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:42:50,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-26 23:42:50,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d46964c/a0398b9f4bf24250ac13b9e38fd9cf2d/FLAG19e20ee15 [2019-12-26 23:42:50,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d46964c/a0398b9f4bf24250ac13b9e38fd9cf2d [2019-12-26 23:42:50,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:42:50,570 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:42:50,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:42:50,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:42:50,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:42:50,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:42:50" (1/1) ... [2019-12-26 23:42:50,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bf895c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:50, skipping insertion in model container [2019-12-26 23:42:50,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:42:50" (1/1) ... [2019-12-26 23:42:50,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:42:50,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:42:51,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:42:51,132 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:42:51,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:42:51,272 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:42:51,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51 WrapperNode [2019-12-26 23:42:51,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:42:51,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:42:51,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:42:51,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:42:51,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:42:51,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:42:51,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:42:51,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:42:51,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (1/1) ... [2019-12-26 23:42:51,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:42:51,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:42:51,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:42:51,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:42:51,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (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 [2019-12-26 23:42:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:42:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:42:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:42:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:42:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:42:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:42:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:42:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:42:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:42:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:42:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:42:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:42:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:42:51,407 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:42:51,750 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:42:51,751 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:42:51,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:42:51 BoogieIcfgContainer [2019-12-26 23:42:51,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:42:51,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:42:51,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:42:51,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:42:51,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:42:50" (1/3) ... [2019-12-26 23:42:51,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cd7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:42:51, skipping insertion in model container [2019-12-26 23:42:51,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:42:51" (2/3) ... [2019-12-26 23:42:51,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cd7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:42:51, skipping insertion in model container [2019-12-26 23:42:51,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:42:51" (3/3) ... [2019-12-26 23:42:51,761 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-12-26 23:42:51,772 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:42:51,772 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:42:51,778 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:42:51,779 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:42:51,807 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,808 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,808 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,809 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,809 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,809 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,810 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,810 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,810 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,810 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,811 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,811 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,811 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,811 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,812 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,812 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,816 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,816 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,816 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,816 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,823 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,823 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,823 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,824 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,827 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,827 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,827 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,828 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:42:51,840 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:42:51,856 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:42:51,856 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:42:51,857 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:42:51,857 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:42:51,857 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:42:51,857 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:42:51,857 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:42:51,857 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:42:51,870 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-26 23:42:51,871 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:42:51,935 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:42:51,935 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:42:51,941 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 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:42:51,948 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:42:51,967 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:42:51,968 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:42:51,969 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 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:42:51,971 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:42:51,972 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:42:53,408 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-26 23:42:53,502 INFO L206 etLargeBlockEncoding]: Checked pairs total: 507 [2019-12-26 23:42:53,502 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-26 23:42:53,506 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-26 23:42:53,517 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-26 23:42:53,519 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-26 23:42:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:42:53,527 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:42:53,527 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:42:53,528 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:42:53,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:42:53,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1331014227, now seen corresponding path program 1 times [2019-12-26 23:42:53,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:42:53,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87689193] [2019-12-26 23:42:53,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:42:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:42:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:42:53,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87689193] [2019-12-26 23:42:53,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:42:53,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:42:53,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80513344] [2019-12-26 23:42:53,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:42:53,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:42:53,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:42:53,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:42:53,943 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-26 23:42:53,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:42:53,971 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-26 23:42:53,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:42:53,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:42:53,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:42:53,985 INFO L225 Difference]: With dead ends: 50 [2019-12-26 23:42:53,985 INFO L226 Difference]: Without dead ends: 34 [2019-12-26 23:42:53,987 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 [2019-12-26 23:42:54,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-26 23:42:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-26 23:42:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:42:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-26 23:42:54,025 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-26 23:42:54,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:42:54,027 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-26 23:42:54,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:42:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-26 23:42:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:42:54,028 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:42:54,028 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:42:54,028 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:42:54,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:42:54,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1688231858, now seen corresponding path program 1 times [2019-12-26 23:42:54,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:42:54,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156333924] [2019-12-26 23:42:54,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:42:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:42:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:42:54,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156333924] [2019-12-26 23:42:54,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:42:54,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:42:54,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190315294] [2019-12-26 23:42:54,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:42:54,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:42:54,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:42:54,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:42:54,095 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-26 23:42:54,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:42:54,120 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-26 23:42:54,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:42:54,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-26 23:42:54,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:42:54,121 INFO L225 Difference]: With dead ends: 36 [2019-12-26 23:42:54,121 INFO L226 Difference]: Without dead ends: 28 [2019-12-26 23:42:54,122 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 [2019-12-26 23:42:54,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-26 23:42:54,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-26 23:42:54,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:42:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-26 23:42:54,127 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-26 23:42:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:42:54,128 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-26 23:42:54,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:42:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-26 23:42:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:42:54,129 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:42:54,129 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:42:54,129 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:42:54,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:42:54,130 INFO L82 PathProgramCache]: Analyzing trace with hash -848747306, now seen corresponding path program 1 times [2019-12-26 23:42:54,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:42:54,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080208256] [2019-12-26 23:42:54,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:42:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:42:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:42:54,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080208256] [2019-12-26 23:42:54,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:42:54,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:42:54,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722270732] [2019-12-26 23:42:54,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:42:54,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:42:54,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:42:54,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:42:54,177 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-26 23:42:54,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:42:54,186 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-26 23:42:54,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:42:54,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:42:54,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:42:54,187 INFO L225 Difference]: With dead ends: 29 [2019-12-26 23:42:54,188 INFO L226 Difference]: Without dead ends: 17 [2019-12-26 23:42:54,188 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 [2019-12-26 23:42:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-26 23:42:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-26 23:42:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-26 23:42:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-26 23:42:54,191 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-26 23:42:54,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:42:54,191 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-26 23:42:54,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:42:54,192 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-26 23:42:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:42:54,192 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:42:54,192 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:42:54,193 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:42:54,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:42:54,193 INFO L82 PathProgramCache]: Analyzing trace with hash -541362955, now seen corresponding path program 1 times [2019-12-26 23:42:54,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:42:54,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885995682] [2019-12-26 23:42:54,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:42:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:42:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:42:54,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885995682] [2019-12-26 23:42:54,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:42:54,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:42:54,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997229356] [2019-12-26 23:42:54,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:42:54,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:42:54,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:42:54,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:42:54,242 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-26 23:42:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:42:54,248 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-26 23:42:54,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:42:54,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-26 23:42:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:42:54,250 INFO L225 Difference]: With dead ends: 16 [2019-12-26 23:42:54,250 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:42:54,250 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 [2019-12-26 23:42:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:42:54,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:42:54,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:42:54,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:42:54,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:42:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:42:54,251 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:42:54,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:42:54,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:42:54,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:42:54,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:42:54 BasicIcfg [2019-12-26 23:42:54,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:42:54,260 INFO L168 Benchmark]: Toolchain (without parser) took 3689.59 ms. Allocated memory was 142.1 MB in the beginning and 255.9 MB in the end (delta: 113.8 MB). Free memory was 98.7 MB in the beginning and 183.0 MB in the end (delta: -84.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2019-12-26 23:42:54,261 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-26 23:42:54,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.88 ms. Allocated memory was 142.1 MB in the beginning and 198.7 MB in the end (delta: 56.6 MB). Free memory was 98.3 MB in the beginning and 155.1 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-26 23:42:54,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.29 ms. Allocated memory is still 198.7 MB. Free memory was 155.1 MB in the beginning and 153.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-26 23:42:54,264 INFO L168 Benchmark]: Boogie Preprocessor took 26.02 ms. Allocated memory is still 198.7 MB. Free memory was 153.0 MB in the beginning and 151.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-26 23:42:54,265 INFO L168 Benchmark]: RCFGBuilder took 406.36 ms. Allocated memory is still 198.7 MB. Free memory was 151.5 MB in the beginning and 131.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-26 23:42:54,266 INFO L168 Benchmark]: TraceAbstraction took 2503.92 ms. Allocated memory was 198.7 MB in the beginning and 255.9 MB in the end (delta: 57.1 MB). Free memory was 130.8 MB in the beginning and 183.0 MB in the end (delta: -52.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:42:54,270 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.88 ms. Allocated memory was 142.1 MB in the beginning and 198.7 MB in the end (delta: 56.6 MB). Free memory was 98.3 MB in the beginning and 155.1 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.29 ms. Allocated memory is still 198.7 MB. Free memory was 155.1 MB in the beginning and 153.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.02 ms. Allocated memory is still 198.7 MB. Free memory was 153.0 MB in the beginning and 151.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 406.36 ms. Allocated memory is still 198.7 MB. Free memory was 151.5 MB in the beginning and 131.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2503.92 ms. Allocated memory was 198.7 MB in the beginning and 255.9 MB in the end (delta: 57.1 MB). Free memory was 130.8 MB in the beginning and 183.0 MB in the end (delta: -52.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 249 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 507 CheckedPairsTotal, 44 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: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 19 SDslu, 25 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 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...