./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe028_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe028_pso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95c59b8bce91cc353bb9f27434d4d89596b76ae6 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:07:20,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:07:20,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:07:20,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:07:20,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:07:20,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:07:20,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:07:20,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:07:20,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:07:20,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:07:20,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:07:20,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:07:20,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:07:20,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:07:20,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:07:20,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:07:20,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:07:20,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:07:20,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:07:20,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:07:20,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:07:20,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:07:20,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:07:20,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:07:20,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:07:20,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:07:20,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:07:20,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:07:20,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:07:20,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:07:20,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:07:20,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:07:20,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:07:20,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:07:20,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:07:20,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:07:20,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:07:20,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:07:20,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:07:20,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:07:20,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:07:20,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:07:20,319 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:07:20,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:07:20,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:07:20,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:07:20,322 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:07:20,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:07:20,323 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:07:20,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:07:20,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:07:20,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:07:20,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:07:20,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:07:20,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:07:20,326 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:07:20,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:07:20,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:07:20,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:07:20,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:07:20,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:07:20,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:07:20,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:07:20,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:07:20,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:07:20,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:07:20,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:07:20,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:07:20,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:07:20,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:07:20,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:07:20,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95c59b8bce91cc353bb9f27434d4d89596b76ae6 [2020-10-20 03:07:20,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:07:20,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:07:20,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:07:20,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:07:20,645 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:07:20,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe028_pso.opt.i [2020-10-20 03:07:20,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00be6fa98/e4aee5a2357b404694da2186bd371379/FLAG25fc443a9 [2020-10-20 03:07:21,305 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:07:21,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_pso.opt.i [2020-10-20 03:07:21,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00be6fa98/e4aee5a2357b404694da2186bd371379/FLAG25fc443a9 [2020-10-20 03:07:21,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00be6fa98/e4aee5a2357b404694da2186bd371379 [2020-10-20 03:07:21,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:07:21,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:07:21,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:21,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:07:21,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:07:21,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:21" (1/1) ... [2020-10-20 03:07:21,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa19b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:21, skipping insertion in model container [2020-10-20 03:07:21,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:21" (1/1) ... [2020-10-20 03:07:21,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:07:21,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:07:22,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:22,209 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:07:22,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:22,360 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:07:22,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22 WrapperNode [2020-10-20 03:07:22,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:22,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:22,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:07:22,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:07:22,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:22,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:07:22,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:07:22,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:07:22,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (1/1) ... [2020-10-20 03:07:22,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:07:22,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:07:22,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:07:22,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:07:22,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (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 [2020-10-20 03:07:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:07:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:07:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:07:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:07:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:07:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:07:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:07:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:07:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:07:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:07:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:07:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:07:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:07:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:07:22,536 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:07:22,965 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:07:22,965 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:07:22,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:22 BoogieIcfgContainer [2020-10-20 03:07:22,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:07:22,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:07:22,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:07:22,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:07:22,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:07:21" (1/3) ... [2020-10-20 03:07:22,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8fd30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:22, skipping insertion in model container [2020-10-20 03:07:22,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:22" (2/3) ... [2020-10-20 03:07:22,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8fd30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:22, skipping insertion in model container [2020-10-20 03:07:22,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:22" (3/3) ... [2020-10-20 03:07:22,982 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2020-10-20 03:07:22,994 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:07:22,994 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:07:23,003 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:07:23,004 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:07:23,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,031 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,031 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,033 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,034 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,034 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,039 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,039 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,044 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,044 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,046 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,047 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:23,054 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:07:23,069 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:07:23,090 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:07:23,091 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:07:23,091 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:07:23,091 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:07:23,091 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:07:23,092 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:07:23,092 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:07:23,092 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:07:23,105 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:07:23,108 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:07:23,110 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:07:23,124 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-20 03:07:23,169 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-20 03:07:23,170 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:07:23,178 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-20 03:07:23,184 INFO L117 LiptonReduction]: Number of co-enabled transitions 1348 [2020-10-20 03:07:25,211 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-20 03:07:25,394 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-20 03:07:25,394 INFO L134 LiptonReduction]: Total number of compositions: 74 [2020-10-20 03:07:25,401 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-10-20 03:07:25,424 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-20 03:07:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-20 03:07:25,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:07:25,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:25,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:25,434 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:25,439 INFO L82 PathProgramCache]: Analyzing trace with hash -831263322, now seen corresponding path program 1 times [2020-10-20 03:07:25,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:25,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091518793] [2020-10-20 03:07:25,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:25,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091518793] [2020-10-20 03:07:25,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:25,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:07:25,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238306742] [2020-10-20 03:07:25,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:07:25,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:25,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:07:25,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:25,694 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-20 03:07:25,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:25,737 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-20 03:07:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:07:25,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 03:07:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:25,758 INFO L225 Difference]: With dead ends: 214 [2020-10-20 03:07:25,759 INFO L226 Difference]: Without dead ends: 166 [2020-10-20 03:07:25,760 INFO L677 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 [2020-10-20 03:07:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-20 03:07:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-20 03:07:25,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-20 03:07:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-20 03:07:25,851 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-20 03:07:25,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:25,853 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-20 03:07:25,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:07:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-20 03:07:25,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:07:25,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:25,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:25,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:07:25,855 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:25,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:25,855 INFO L82 PathProgramCache]: Analyzing trace with hash 639961, now seen corresponding path program 1 times [2020-10-20 03:07:25,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:25,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008413866] [2020-10-20 03:07:25,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:25,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008413866] [2020-10-20 03:07:25,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:25,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:25,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282205398] [2020-10-20 03:07:25,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:25,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:25,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:25,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:25,927 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-20 03:07:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:25,953 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-20 03:07:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:25,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 03:07:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:25,955 INFO L225 Difference]: With dead ends: 202 [2020-10-20 03:07:25,955 INFO L226 Difference]: Without dead ends: 130 [2020-10-20 03:07:25,956 INFO L677 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 [2020-10-20 03:07:25,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-20 03:07:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-20 03:07:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-20 03:07:25,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-20 03:07:25,967 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-20 03:07:25,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:25,967 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-20 03:07:25,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-20 03:07:25,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:07:25,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:25,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:25,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:07:25,969 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:25,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:25,970 INFO L82 PathProgramCache]: Analyzing trace with hash 19828348, now seen corresponding path program 1 times [2020-10-20 03:07:25,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:25,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027642939] [2020-10-20 03:07:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:26,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027642939] [2020-10-20 03:07:26,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:26,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:26,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491955311] [2020-10-20 03:07:26,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:26,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:26,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:26,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:26,117 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-10-20 03:07:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:26,158 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-10-20 03:07:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:07:26,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 03:07:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:26,161 INFO L225 Difference]: With dead ends: 148 [2020-10-20 03:07:26,161 INFO L226 Difference]: Without dead ends: 112 [2020-10-20 03:07:26,161 INFO L677 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 [2020-10-20 03:07:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-20 03:07:26,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-20 03:07:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-20 03:07:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-10-20 03:07:26,171 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-10-20 03:07:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:26,171 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-10-20 03:07:26,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-10-20 03:07:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:07:26,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:26,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:26,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:07:26,174 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:26,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:26,174 INFO L82 PathProgramCache]: Analyzing trace with hash 595600524, now seen corresponding path program 1 times [2020-10-20 03:07:26,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:26,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152663594] [2020-10-20 03:07:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:26,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152663594] [2020-10-20 03:07:26,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:26,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:26,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866048325] [2020-10-20 03:07:26,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:07:26,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:26,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:07:26,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:26,244 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-10-20 03:07:26,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:26,296 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-10-20 03:07:26,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:07:26,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 03:07:26,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:26,299 INFO L225 Difference]: With dead ends: 109 [2020-10-20 03:07:26,299 INFO L226 Difference]: Without dead ends: 85 [2020-10-20 03:07:26,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:07:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-20 03:07:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-20 03:07:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-20 03:07:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-20 03:07:26,312 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-10-20 03:07:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:26,312 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-20 03:07:26,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:07:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-20 03:07:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:07:26,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:26,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:26,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:07:26,317 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:26,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1088953398, now seen corresponding path program 1 times [2020-10-20 03:07:26,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:26,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882938143] [2020-10-20 03:07:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:26,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882938143] [2020-10-20 03:07:26,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:26,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:07:26,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941056031] [2020-10-20 03:07:26,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:07:26,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:26,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:07:26,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:07:26,415 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-10-20 03:07:26,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:26,545 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-20 03:07:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:07:26,546 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-20 03:07:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:26,547 INFO L225 Difference]: With dead ends: 80 [2020-10-20 03:07:26,547 INFO L226 Difference]: Without dead ends: 72 [2020-10-20 03:07:26,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:07:26,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-20 03:07:26,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-20 03:07:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 03:07:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-20 03:07:26,552 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-20 03:07:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:26,552 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-20 03:07:26,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:07:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-20 03:07:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 03:07:26,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:26,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:26,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:07:26,553 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1996779088, now seen corresponding path program 1 times [2020-10-20 03:07:26,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:26,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271674056] [2020-10-20 03:07:26,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:26,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271674056] [2020-10-20 03:07:26,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:26,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:26,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2571458] [2020-10-20 03:07:26,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:26,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:26,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:26,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:26,597 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-20 03:07:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:26,615 INFO L93 Difference]: Finished difference Result 85 states and 168 transitions. [2020-10-20 03:07:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:26,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 03:07:26,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:26,617 INFO L225 Difference]: With dead ends: 85 [2020-10-20 03:07:26,617 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 03:07:26,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:26,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 03:07:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 03:07:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 03:07:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-20 03:07:26,619 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-10-20 03:07:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:26,620 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-20 03:07:26,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-20 03:07:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 03:07:26,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:26,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:26,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:07:26,621 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:26,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:26,622 INFO L82 PathProgramCache]: Analyzing trace with hash 242478162, now seen corresponding path program 2 times [2020-10-20 03:07:26,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:26,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207776974] [2020-10-20 03:07:26,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:26,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207776974] [2020-10-20 03:07:26,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:26,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:26,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063989362] [2020-10-20 03:07:26,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:26,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:26,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:26,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:26,668 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-10-20 03:07:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:26,683 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-20 03:07:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:26,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 03:07:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:26,683 INFO L225 Difference]: With dead ends: 32 [2020-10-20 03:07:26,683 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:07:26,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:07:26,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:07:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:07:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:07:26,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-20 03:07:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:26,685 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:07:26,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:07:26,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:07:26,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:07:26,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:07:26 BasicIcfg [2020-10-20 03:07:26,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:07:26,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:07:26,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:07:26,691 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:07:26,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:22" (3/4) ... [2020-10-20 03:07:26,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:07:26,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:07:26,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:07:26,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:07:26,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:07:26,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:07:26,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:26,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:26,760 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:07:26,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:07:26,762 INFO L168 Benchmark]: Toolchain (without parser) took 5126.59 ms. Allocated memory was 40.9 MB in the beginning and 76.0 MB in the end (delta: 35.1 MB). Free memory was 17.7 MB in the beginning and 29.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,763 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 31.5 MB. Free memory was 8.7 MB in the beginning and 8.7 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.01 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 16.8 MB in the beginning and 11.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.19 ms. Allocated memory is still 43.0 MB. Free memory was 11.5 MB in the beginning and 9.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,765 INFO L168 Benchmark]: Boogie Preprocessor took 38.47 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 9.3 MB in the beginning and 27.4 MB in the end (delta: -18.1 MB). Peak memory consumption was 517.1 kB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,765 INFO L168 Benchmark]: RCFGBuilder took 514.59 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 27.4 MB in the beginning and 19.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,766 INFO L168 Benchmark]: TraceAbstraction took 3720.36 ms. Allocated memory was 44.6 MB in the beginning and 76.0 MB in the end (delta: 31.5 MB). Free memory was 19.1 MB in the beginning and 32.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,767 INFO L168 Benchmark]: Witness Printer took 69.97 ms. Allocated memory is still 76.0 MB. Free memory was 32.4 MB in the beginning and 29.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:26,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 31.5 MB. Free memory was 8.7 MB in the beginning and 8.7 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 720.01 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 16.8 MB in the beginning and 11.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 52.19 ms. Allocated memory is still 43.0 MB. Free memory was 11.5 MB in the beginning and 9.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 38.47 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 9.3 MB in the beginning and 27.4 MB in the end (delta: -18.1 MB). Peak memory consumption was 517.1 kB. Max. memory is 14.3 GB. * RCFGBuilder took 514.59 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 27.4 MB in the beginning and 19.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3720.36 ms. Allocated memory was 44.6 MB in the beginning and 76.0 MB in the end (delta: 31.5 MB). Free memory was 19.1 MB in the beginning and 32.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 14.3 GB. * Witness Printer took 69.97 ms. Allocated memory is still 76.0 MB. Free memory was 32.4 MB in the beginning and 29.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1004 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 85 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 124 SDtfs, 127 SDslu, 166 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...