./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 6be5ef1eaec1c85418b2ab6810e4a2a5a29256dd ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-04 18:44:22,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-04 18:44:22,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-04 18:44:22,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-04 18:44:22,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-04 18:44:22,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-04 18:44:22,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-04 18:44:22,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-04 18:44:22,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-04 18:44:22,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-04 18:44:22,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-04 18:44:22,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-04 18:44:22,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-04 18:44:22,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-04 18:44:22,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-04 18:44:22,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-04 18:44:22,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-04 18:44:22,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-04 18:44:22,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-04 18:44:22,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-04 18:44:22,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-04 18:44:22,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-04 18:44:22,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-04 18:44:22,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-04 18:44:22,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-04 18:44:22,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-04 18:44:22,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-04 18:44:22,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-04 18:44:22,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-04 18:44:22,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-04 18:44:22,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-04 18:44:22,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-04 18:44:22,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-04 18:44:22,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-04 18:44:22,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-04 18:44:22,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-04 18:44:22,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-04 18:44:22,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-04 18:44:22,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-04 18:44:22,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-04 18:44:22,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-04 18:44:22,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-04 18:44:22,175 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-04 18:44:22,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-04 18:44:22,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-04 18:44:22,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-04 18:44:22,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-04 18:44:22,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-04 18:44:22,180 INFO L138 SettingsManager]: * Use SBE=true [2021-10-04 18:44:22,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-04 18:44:22,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-04 18:44:22,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-04 18:44:22,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-04 18:44:22,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-04 18:44:22,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-04 18:44:22,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-04 18:44:22,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-04 18:44:22,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-04 18:44:22,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-04 18:44:22,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-04 18:44:22,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-04 18:44:22,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-04 18:44:22,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-04 18:44:22,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-04 18:44:22,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:44:22,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-04 18:44:22,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-04 18:44:22,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-04 18:44:22,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-04 18:44:22,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-04 18:44:22,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-04 18:44:22,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-04 18:44:22,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6be5ef1eaec1c85418b2ab6810e4a2a5a29256dd [2021-10-04 18:44:22,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-04 18:44:22,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-04 18:44:22,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-04 18:44:22,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-04 18:44:22,702 INFO L275 PluginConnector]: CDTParser initialized [2021-10-04 18:44:22,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-04 18:44:22,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6da5a4732/8f1edb208c2348e5a3a9eb6926b268cc/FLAGf3fa4d65b [2021-10-04 18:44:23,461 INFO L306 CDTParser]: Found 1 translation units. [2021-10-04 18:44:23,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-04 18:44:23,462 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:44:23,462 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:44:23,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6da5a4732/8f1edb208c2348e5a3a9eb6926b268cc/FLAGf3fa4d65b [2021-10-04 18:44:23,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6da5a4732/8f1edb208c2348e5a3a9eb6926b268cc [2021-10-04 18:44:23,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-04 18:44:23,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-04 18:44:23,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-04 18:44:23,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-04 18:44:23,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-04 18:44:23,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:44:23" (1/1) ... [2021-10-04 18:44:23,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219a7c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:23, skipping insertion in model container [2021-10-04 18:44:23,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:44:23" (1/1) ... [2021-10-04 18:44:23,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-04 18:44:23,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-04 18:44:24,026 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:44:24,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c[1499,1512] [2021-10-04 18:44:24,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:44:24,084 INFO L203 MainTranslator]: Completed pre-run [2021-10-04 18:44:24,096 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:44:24,108 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c[1499,1512] [2021-10-04 18:44:24,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:44:24,125 INFO L208 MainTranslator]: Completed translation [2021-10-04 18:44:24,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24 WrapperNode [2021-10-04 18:44:24,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-04 18:44:24,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-04 18:44:24,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-04 18:44:24,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-04 18:44:24,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-04 18:44:24,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-04 18:44:24,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-04 18:44:24,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-04 18:44:24,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-04 18:44:24,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-04 18:44:24,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-04 18:44:24,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-04 18:44:24,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (1/1) ... [2021-10-04 18:44:24,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:44:24,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 18:44:24,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-04 18:44:24,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-04 18:44:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-04 18:44:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-04 18:44:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-04 18:44:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-04 18:44:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-04 18:44:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-04 18:44:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-04 18:44:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-04 18:44:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-04 18:44:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-04 18:44:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-04 18:44:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-04 18:44:24,309 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-04 18:44:24,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-04 18:44:24,743 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-04 18:44:24,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:44:24 BoogieIcfgContainer [2021-10-04 18:44:24,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-04 18:44:24,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-04 18:44:24,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-04 18:44:24,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-04 18:44:24,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.10 06:44:23" (1/3) ... [2021-10-04 18:44:24,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5297ef6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:44:24, skipping insertion in model container [2021-10-04 18:44:24,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:44:24" (2/3) ... [2021-10-04 18:44:24,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5297ef6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:44:24, skipping insertion in model container [2021-10-04 18:44:24,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:44:24" (3/3) ... [2021-10-04 18:44:24,757 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.c [2021-10-04 18:44:24,764 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-04 18:44:24,765 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-04 18:44:24,765 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-04 18:44:24,765 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-04 18:44:24,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,816 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,819 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,819 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,820 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,820 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,823 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,823 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,824 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,824 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,824 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,824 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,825 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,825 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,825 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,826 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,828 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,828 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,829 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,836 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,840 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,840 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,841 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,846 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:44:24,862 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-04 18:44:24,938 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-04 18:44:24,947 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-04 18:44:24,947 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-04 18:44:24,967 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-04 18:44:24,982 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 120 transitions, 256 flow [2021-10-04 18:44:24,986 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 120 transitions, 256 flow [2021-10-04 18:44:24,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 120 transitions, 256 flow [2021-10-04 18:44:25,069 INFO L129 PetriNetUnfolder]: 10/118 cut-off events. [2021-10-04 18:44:25,070 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-04 18:44:25,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 118 events. 10/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2021-10-04 18:44:25,077 INFO L116 LiptonReduction]: Number of co-enabled transitions 642 [2021-10-04 18:44:28,830 INFO L131 LiptonReduction]: Checked pairs total: 3177 [2021-10-04 18:44:28,831 INFO L133 LiptonReduction]: Total number of compositions: 125 [2021-10-04 18:44:28,852 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 26 transitions, 68 flow [2021-10-04 18:44:28,875 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 130 states, 129 states have (on average 2.364341085271318) internal successors, (305), 129 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:28,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 129 states have (on average 2.364341085271318) internal successors, (305), 129 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:28,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-04 18:44:28,891 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:44:28,891 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:44:28,892 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-04 18:44:28,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:44:28,898 INFO L82 PathProgramCache]: Analyzing trace with hash -455992726, now seen corresponding path program 1 times [2021-10-04 18:44:28,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:44:28,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230741776] [2021-10-04 18:44:28,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:44:28,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:44:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:44:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:44:29,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:44:29,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230741776] [2021-10-04 18:44:29,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230741776] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:44:29,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:44:29,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-04 18:44:29,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328373382] [2021-10-04 18:44:29,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 18:44:29,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:44:29,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 18:44:29,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 18:44:29,281 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 2.364341085271318) internal successors, (305), 129 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:29,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:44:29,330 INFO L93 Difference]: Finished difference Result 145 states and 326 transitions. [2021-10-04 18:44:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 18:44:29,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-04 18:44:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:44:29,342 INFO L225 Difference]: With dead ends: 145 [2021-10-04 18:44:29,343 INFO L226 Difference]: Without dead ends: 34 [2021-10-04 18:44:29,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:44:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-04 18:44:29,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-04 18:44:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2021-10-04 18:44:29,380 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 18 [2021-10-04 18:44:29,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:44:29,381 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2021-10-04 18:44:29,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2021-10-04 18:44:29,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-04 18:44:29,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:44:29,383 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:44:29,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-04 18:44:29,383 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-04 18:44:29,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:44:29,384 INFO L82 PathProgramCache]: Analyzing trace with hash -148936790, now seen corresponding path program 2 times [2021-10-04 18:44:29,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:44:29,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428762553] [2021-10-04 18:44:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:44:29,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:44:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:44:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:44:29,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:44:29,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428762553] [2021-10-04 18:44:29,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428762553] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:44:29,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:44:29,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 18:44:29,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540149245] [2021-10-04 18:44:29,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 18:44:29,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:44:29,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 18:44:29,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 18:44:29,508 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:29,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:44:29,524 INFO L93 Difference]: Finished difference Result 33 states and 48 transitions. [2021-10-04 18:44:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-04 18:44:29,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-04 18:44:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:44:29,525 INFO L225 Difference]: With dead ends: 33 [2021-10-04 18:44:29,525 INFO L226 Difference]: Without dead ends: 0 [2021-10-04 18:44:29,526 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:44:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-04 18:44:29,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-04 18:44:29,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-04 18:44:29,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-04 18:44:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:44:29,528 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-04 18:44:29,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:44:29,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-04 18:44:29,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-04 18:44:29,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-04 18:44:29,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-04 18:44:29,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-04 18:44:29,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-04 18:44:29,538 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-04 18:44:29,538 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-04 18:44:29,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 06:44:29 BasicIcfg [2021-10-04 18:44:29,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-04 18:44:29,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-04 18:44:29,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-04 18:44:29,542 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-04 18:44:29,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:44:24" (3/4) ... [2021-10-04 18:44:29,546 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-04 18:44:29,553 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-04 18:44:29,553 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-04 18:44:29,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-04 18:44:29,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 18:44:29,560 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 18:44:29,609 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-04 18:44:29,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-04 18:44:29,611 INFO L168 Benchmark]: Toolchain (without parser) took 5775.60 ms. Allocated memory was 48.2 MB in the beginning and 86.0 MB in the end (delta: 37.7 MB). Free memory was 24.4 MB in the beginning and 59.4 MB in the end (delta: -35.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-04 18:44:29,612 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 48.2 MB. Free memory was 33.9 MB in the beginning and 33.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:44:29,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.43 ms. Allocated memory is still 48.2 MB. Free memory was 24.1 MB in the beginning and 25.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-04 18:44:29,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.60 ms. Allocated memory is still 48.2 MB. Free memory was 25.6 MB in the beginning and 23.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:44:29,614 INFO L168 Benchmark]: Boogie Preprocessor took 26.32 ms. Allocated memory is still 48.2 MB. Free memory was 23.8 MB in the beginning and 22.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:44:29,614 INFO L168 Benchmark]: RCFGBuilder took 547.09 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.7 MB in the beginning and 32.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-04 18:44:29,615 INFO L168 Benchmark]: TraceAbstraction took 4791.91 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 32.3 MB in the beginning and 62.2 MB in the end (delta: -29.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:44:29,615 INFO L168 Benchmark]: Witness Printer took 67.94 ms. Allocated memory is still 86.0 MB. Free memory was 62.2 MB in the beginning and 59.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-04 18:44:29,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 48.2 MB. Free memory was 33.9 MB in the beginning and 33.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.43 ms. Allocated memory is still 48.2 MB. Free memory was 24.1 MB in the beginning and 25.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.60 ms. Allocated memory is still 48.2 MB. Free memory was 25.6 MB in the beginning and 23.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.32 ms. Allocated memory is still 48.2 MB. Free memory was 23.8 MB in the beginning and 22.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 547.09 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.7 MB in the beginning and 32.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4791.91 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 32.3 MB in the beginning and 62.2 MB in the end (delta: -29.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 67.94 ms. Allocated memory is still 86.0 MB. Free memory was 62.2 MB in the beginning and 59.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3844.9ms, 117 PlacesBefore, 31 PlacesAfterwards, 120 TransitionsBefore, 26 TransitionsAfterwards, 642 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 22 TrivialYvCompositions, 9 ConcurrentYvCompositions, 8 ChoiceCompositions, 125 TotalNumberOfCompositions, 3177 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1713, positive: 1502, positive conditional: 0, positive unconditional: 1502, negative: 211, negative conditional: 0, negative unconditional: 211, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 565, positive: 525, positive conditional: 0, positive unconditional: 525, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 565, positive: 518, positive conditional: 0, positive unconditional: 518, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1713, positive: 977, positive conditional: 0, positive unconditional: 977, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 565, unknown conditional: 0, unknown unconditional: 565] , Statistics on independence cache: Total cache size (in pairs): 136, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 72]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 137 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4601.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 16.4ms, AutomataDifference: 100.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3927.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 44 SDslu, 48 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 21.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.3ms SsaConstructionTime, 124.0ms SatisfiabilityAnalysisTime, 239.7ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-04 18:44:29,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...