./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/safe003_tso.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0c4b02bc25104859076c6cd72166b3ed67280db ..................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:25:44,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:25:44,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:25:44,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:25:44,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:25:44,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:25:44,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:25:44,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:25:44,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:25:44,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:25:44,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:25:44,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:25:44,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:25:44,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:25:44,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:25:44,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:25:44,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:25:44,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:25:44,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:25:44,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:25:44,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:25:44,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:25:44,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:25:44,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:25:44,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:25:44,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:25:44,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:25:44,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:25:44,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:25:44,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:25:44,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:25:44,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:25:44,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:25:44,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:25:44,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:25:44,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:25:44,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:25:44,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:25:44,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:25:44,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:25:44,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:25:44,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:25:44,609 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:25:44,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:25:44,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:25:44,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:25:44,612 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:25:44,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:25:44,615 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:25:44,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:25:44,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:25:44,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:25:44,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:25:44,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:25:44,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:25:44,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:25:44,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:25:44,617 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:25:44,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:25:44,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:25:44,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:25:44,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:25:44,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:25:44,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:25:44,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:25:44,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:25:44,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:25:44,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:25:44,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:25:44,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:25:44,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:25:44,627 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(__VERIFIER_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 -> a0c4b02bc25104859076c6cd72166b3ed67280db [2019-11-28 18:25:44,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:25:44,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:25:44,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:25:44,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:25:44,937 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:25:44,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2019-11-28 18:25:45,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780ec8d0e/3233e0e499de4bf38bf2d946c7adedb0/FLAG9a16c3b11 [2019-11-28 18:25:45,569 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:25:45,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2019-11-28 18:25:45,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780ec8d0e/3233e0e499de4bf38bf2d946c7adedb0/FLAG9a16c3b11 [2019-11-28 18:25:45,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780ec8d0e/3233e0e499de4bf38bf2d946c7adedb0 [2019-11-28 18:25:45,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:25:45,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:25:45,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:25:45,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:25:45,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:25:45,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:25:45" (1/1) ... [2019-11-28 18:25:45,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a800259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:45, skipping insertion in model container [2019-11-28 18:25:45,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:25:45" (1/1) ... [2019-11-28 18:25:45,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:25:45,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:25:46,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:25:46,430 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:25:46,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:25:46,575 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:25:46,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46 WrapperNode [2019-11-28 18:25:46,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:25:46,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:25:46,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:25:46,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:25:46,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:25:46,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:25:46,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:25:46,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:25:46,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (1/1) ... [2019-11-28 18:25:46,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:25:46,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:25:46,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:25:46,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:25:46,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (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 [2019-11-28 18:25:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:25:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:25:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:25:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:25:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:25:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:25:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:25:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:25:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:25:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:25:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:25:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:25:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:25:46,751 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:25:47,086 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:25:47,087 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:25:47,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:47 BoogieIcfgContainer [2019-11-28 18:25:47,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:25:47,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:25:47,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:25:47,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:25:47,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:25:45" (1/3) ... [2019-11-28 18:25:47,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e593893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:25:47, skipping insertion in model container [2019-11-28 18:25:47,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:46" (2/3) ... [2019-11-28 18:25:47,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e593893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:25:47, skipping insertion in model container [2019-11-28 18:25:47,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:47" (3/3) ... [2019-11-28 18:25:47,096 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2019-11-28 18:25:47,105 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:25:47,106 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:25:47,112 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:25:47,113 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:25:47,142 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,142 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,142 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,142 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,143 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,143 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,144 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,144 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,144 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,145 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,145 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,145 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,148 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,148 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,148 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,149 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,149 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,149 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:47,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:25:47,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:25:47,204 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:25:47,204 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:25:47,204 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:25:47,204 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:25:47,204 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:25:47,204 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:25:47,205 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:25:47,218 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-11-28 18:25:47,220 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:25:47,263 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:25:47,263 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:25:47,270 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:25:47,273 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:25:47,290 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:25:47,291 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:25:47,292 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:25:47,297 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:25:47,298 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:25:48,673 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-11-28 18:25:48,790 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-28 18:25:48,888 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-11-28 18:25:48,889 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-11-28 18:25:48,895 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-11-28 18:25:48,916 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-11-28 18:25:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-11-28 18:25:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:25:48,937 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:48,939 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:48,940 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:48,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-11-28 18:25:48,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:48,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921358927] [2019-11-28 18:25:48,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:49,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921358927] [2019-11-28 18:25:49,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:49,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:25:49,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395879378] [2019-11-28 18:25:49,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:49,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:49,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:49,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:49,283 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-11-28 18:25:49,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:49,340 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-11-28 18:25:49,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:49,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:25:49,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:49,352 INFO L225 Difference]: With dead ends: 58 [2019-11-28 18:25:49,352 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:25:49,354 INFO L630 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 [2019-11-28 18:25:49,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:25:49,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:25:49,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:25:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:25:49,391 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:25:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:49,392 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:25:49,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:25:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:25:49,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:49,393 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:49,393 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:49,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:49,394 INFO L82 PathProgramCache]: Analyzing trace with hash 982750768, now seen corresponding path program 1 times [2019-11-28 18:25:49,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:49,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875590810] [2019-11-28 18:25:49,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:49,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:49,569 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875590810] [2019-11-28 18:25:49,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:49,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:25:49,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845510337] [2019-11-28 18:25:49,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:49,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:49,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:49,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:49,573 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 4 states. [2019-11-28 18:25:49,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:49,590 INFO L93 Difference]: Finished difference Result 36 states and 59 transitions. [2019-11-28 18:25:49,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:49,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 18:25:49,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:49,592 INFO L225 Difference]: With dead ends: 36 [2019-11-28 18:25:49,592 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 18:25:49,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:49,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 18:25:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-11-28 18:25:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-28 18:25:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2019-11-28 18:25:49,598 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 9 [2019-11-28 18:25:49,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:49,599 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-11-28 18:25:49,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:49,599 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2019-11-28 18:25:49,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:25:49,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:49,600 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:49,601 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:49,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:49,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1484294501, now seen corresponding path program 1 times [2019-11-28 18:25:49,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:49,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291610395] [2019-11-28 18:25:49,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:49,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291610395] [2019-11-28 18:25:49,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:49,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:25:49,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92678343] [2019-11-28 18:25:49,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:25:49,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:49,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:25:49,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:25:49,687 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand 3 states. [2019-11-28 18:25:49,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:49,702 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2019-11-28 18:25:49,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:25:49,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 18:25:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:49,704 INFO L225 Difference]: With dead ends: 20 [2019-11-28 18:25:49,704 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 18:25:49,705 INFO L630 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 [2019-11-28 18:25:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 18:25:49,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 18:25:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 18:25:49,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-28 18:25:49,709 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-11-28 18:25:49,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:49,710 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-28 18:25:49,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:25:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-28 18:25:49,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:25:49,713 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:49,714 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:49,714 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:49,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:49,714 INFO L82 PathProgramCache]: Analyzing trace with hash -577580537, now seen corresponding path program 1 times [2019-11-28 18:25:49,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:49,715 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426701115] [2019-11-28 18:25:49,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:49,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426701115] [2019-11-28 18:25:49,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:49,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:25:49,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644015806] [2019-11-28 18:25:49,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:25:49,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:49,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:25:49,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:25:49,823 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2019-11-28 18:25:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:49,840 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-11-28 18:25:49,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:49,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:25:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:49,842 INFO L225 Difference]: With dead ends: 17 [2019-11-28 18:25:49,842 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:25:49,842 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:25:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:25:49,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:25:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:25:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:25:49,844 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:25:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:49,844 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:25:49,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:25:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:25:49,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:25:49,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:25:49 BasicIcfg [2019-11-28 18:25:49,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:25:49,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:25:49,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:25:49,849 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:25:49,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:47" (3/4) ... [2019-11-28 18:25:49,853 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:25:49,859 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:25:49,859 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:25:49,859 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:25:49,864 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:25:49,864 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:25:49,865 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:25:49,912 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:25:49,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:25:49,915 INFO L168 Benchmark]: Toolchain (without parser) took 4064.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 957.7 MB in the beginning and 840.0 MB in the end (delta: 117.6 MB). Peak memory consumption was 275.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:49,915 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:49,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -161.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:49,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:49,918 INFO L168 Benchmark]: Boogie Preprocessor took 26.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:49,918 INFO L168 Benchmark]: RCFGBuilder took 398.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:49,919 INFO L168 Benchmark]: TraceAbstraction took 2759.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 846.7 MB in the end (delta: 247.7 MB). Peak memory consumption was 247.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:49,920 INFO L168 Benchmark]: Witness Printer took 64.09 ms. Allocated memory is still 1.2 GB. Free memory was 846.7 MB in the beginning and 840.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:49,925 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 724.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -161.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 398.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2759.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 846.7 MB in the end (delta: 247.7 MB). Peak memory consumption was 247.7 MB. Max. memory is 11.5 GB. * Witness Printer took 64.09 ms. Allocated memory is still 1.2 GB. Free memory was 846.7 MB in the beginning and 840.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 33 SDslu, 21 SDs, 0 SdLazy, 19 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1778 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...