./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer --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 5e1e7b98d25beb2e523be034d1614b38d1111ec6 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:54:50,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:54:50,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:54:50,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:54:50,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:54:50,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:54:50,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:54:50,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:54:50,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:54:50,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:54:50,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:54:50,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:54:50,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:54:50,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:54:50,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:54:50,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:54:50,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:54:50,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:54:50,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:54:50,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:54:50,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:54:50,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:54:50,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:54:50,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:54:50,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:54:50,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:54:50,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:54:50,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:54:50,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:54:50,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:54:50,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:54:50,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:54:50,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:54:50,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:54:50,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:54:50,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:54:50,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:54:50,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:54:50,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:54:50,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:54:50,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:54:50,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:54:50,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:54:50,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:54:50,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:54:50,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:54:50,602 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:54:50,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:54:50,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:54:50,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:54:50,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:54:50,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:54:50,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:54:50,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:54:50,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:54:50,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:54:50,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:54:50,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:54:50,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:54:50,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:54:50,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:54:50,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:54:50,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:54:50,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:54:50,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:54:50,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:54:50,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:54:50,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:54:50,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:54:50,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:54:50,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:54:50,611 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:/tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e1e7b98d25beb2e523be034d1614b38d1111ec6 [2020-12-01 15:54:50,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:54:50,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:54:50,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:54:50,957 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:54:50,961 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:54:50,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe007_tso.oepc.i [2020-12-01 15:54:51,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/data/16c3fd38a/eafc46b660fa4040992a5ddd4364c39e/FLAGecc115401 [2020-12-01 15:54:51,657 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:54:51,658 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/sv-benchmarks/c/pthread-wmm/safe007_tso.oepc.i [2020-12-01 15:54:51,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/data/16c3fd38a/eafc46b660fa4040992a5ddd4364c39e/FLAGecc115401 [2020-12-01 15:54:51,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/data/16c3fd38a/eafc46b660fa4040992a5ddd4364c39e [2020-12-01 15:54:51,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:54:51,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:54:51,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:54:51,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:54:51,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:54:51,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:54:51" (1/1) ... [2020-12-01 15:54:51,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533279ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:51, skipping insertion in model container [2020-12-01 15:54:51,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:54:51" (1/1) ... [2020-12-01 15:54:51,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:54:52,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:54:52,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:54:52,469 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:54:52,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:54:52,674 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:54:52,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52 WrapperNode [2020-12-01 15:54:52,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:54:52,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:54:52,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:54:52,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:54:52,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:54:52,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:54:52,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:54:52,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:54:52,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... [2020-12-01 15:54:52,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:54:52,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:54:52,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:54:52,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:54:52,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:54:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:54:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-01 15:54:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:54:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:54:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-01 15:54:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-01 15:54:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-01 15:54:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-01 15:54:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-01 15:54:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-01 15:54:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:54:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-01 15:54:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:54:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:54:52,982 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-01 15:54:53,509 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:54:53,509 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 15:54:53,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:54:53 BoogieIcfgContainer [2020-12-01 15:54:53,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:54:53,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:54:53,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:54:53,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:54:53,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:54:51" (1/3) ... [2020-12-01 15:54:53,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4793ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:54:53, skipping insertion in model container [2020-12-01 15:54:53,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:52" (2/3) ... [2020-12-01 15:54:53,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4793ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:54:53, skipping insertion in model container [2020-12-01 15:54:53,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:54:53" (3/3) ... [2020-12-01 15:54:53,523 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-12-01 15:54:53,541 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-01 15:54:53,541 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:54:53,546 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:54:53,547 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-01 15:54:53,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,587 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,587 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,593 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,593 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,594 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,594 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,599 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,599 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,605 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,605 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,606 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:54:53,612 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-01 15:54:53,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-01 15:54:53,653 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:54:53,653 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:54:53,653 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:54:53,654 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:54:53,654 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:54:53,654 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:54:53,654 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:54:53,654 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:54:53,670 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-01 15:54:53,672 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-12-01 15:54:53,676 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-12-01 15:54:53,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-12-01 15:54:53,733 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-12-01 15:54:53,733 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-01 15:54:53,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-12-01 15:54:53,742 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-12-01 15:54:56,670 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-01 15:54:57,812 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-01 15:54:58,847 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-01 15:54:58,997 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-01 15:54:59,253 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-01 15:54:59,369 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-01 15:54:59,624 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-12-01 15:54:59,624 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-12-01 15:54:59,630 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-12-01 15:54:59,662 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-01 15:54:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-01 15:54:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:54:59,673 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:59,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:59,674 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:59,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:59,681 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-12-01 15:54:59,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:59,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98073384] [2020-12-01 15:54:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:59,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:59,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98073384] [2020-12-01 15:54:59,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:59,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-01 15:54:59,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724218997] [2020-12-01 15:54:59,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:59,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:00,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:55:00,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:55:00,015 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-01 15:55:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:00,069 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-12-01 15:55:00,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:55:00,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-01 15:55:00,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:00,089 INFO L225 Difference]: With dead ends: 282 [2020-12-01 15:55:00,090 INFO L226 Difference]: Without dead ends: 218 [2020-12-01 15:55:00,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:55:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-12-01 15:55:00,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-12-01 15:55:00,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-01 15:55:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-12-01 15:55:00,170 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-12-01 15:55:00,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:00,172 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-12-01 15:55:00,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:55:00,173 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-12-01 15:55:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:55:00,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:00,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:00,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:55:00,181 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:00,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:00,186 INFO L82 PathProgramCache]: Analyzing trace with hash -700352928, now seen corresponding path program 1 times [2020-12-01 15:55:00,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:00,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942788361] [2020-12-01 15:55:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:00,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942788361] [2020-12-01 15:55:00,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:55:00,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:55:00,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732429810] [2020-12-01 15:55:00,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:55:00,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:00,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:55:00,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:55:00,351 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-12-01 15:55:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:00,391 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-12-01 15:55:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:55:00,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-01 15:55:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:00,412 INFO L225 Difference]: With dead ends: 242 [2020-12-01 15:55:00,414 INFO L226 Difference]: Without dead ends: 146 [2020-12-01 15:55:00,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:55:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-01 15:55:00,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-12-01 15:55:00,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-12-01 15:55:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-12-01 15:55:00,453 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-12-01 15:55:00,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:00,454 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-12-01 15:55:00,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:55:00,454 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-12-01 15:55:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:55:00,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:00,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:00,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:55:00,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:00,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:00,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2063010818, now seen corresponding path program 1 times [2020-12-01 15:55:00,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:00,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799633696] [2020-12-01 15:55:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:00,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799633696] [2020-12-01 15:55:00,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:55:00,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-01 15:55:00,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238178202] [2020-12-01 15:55:00,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:55:00,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:00,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:55:00,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:55:00,595 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-12-01 15:55:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:00,603 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-12-01 15:55:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:55:00,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-01 15:55:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:00,607 INFO L225 Difference]: With dead ends: 140 [2020-12-01 15:55:00,608 INFO L226 Difference]: Without dead ends: 140 [2020-12-01 15:55:00,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:55:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-01 15:55:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-12-01 15:55:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-01 15:55:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-12-01 15:55:00,636 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-12-01 15:55:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:00,636 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-12-01 15:55:00,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:55:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-12-01 15:55:00,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 15:55:00,640 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:00,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:00,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:55:00,641 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:00,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:00,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1374781277, now seen corresponding path program 1 times [2020-12-01 15:55:00,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:00,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075586358] [2020-12-01 15:55:00,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:00,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075586358] [2020-12-01 15:55:00,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:55:00,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:55:00,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011288779] [2020-12-01 15:55:00,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:55:00,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:00,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:55:00,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:55:00,774 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-12-01 15:55:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:00,802 INFO L93 Difference]: Finished difference Result 158 states and 376 transitions. [2020-12-01 15:55:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:55:00,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-01 15:55:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:00,804 INFO L225 Difference]: With dead ends: 158 [2020-12-01 15:55:00,804 INFO L226 Difference]: Without dead ends: 68 [2020-12-01 15:55:00,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:55:00,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-01 15:55:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-01 15:55:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-01 15:55:00,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-12-01 15:55:00,818 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-12-01 15:55:00,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:00,818 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-12-01 15:55:00,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:55:00,819 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-12-01 15:55:00,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:55:00,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:00,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:00,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:55:00,820 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:00,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:00,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-12-01 15:55:00,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:00,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577304006] [2020-12-01 15:55:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:00,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577304006] [2020-12-01 15:55:00,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:55:00,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:55:00,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378635086] [2020-12-01 15:55:00,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:55:00,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:00,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:55:00,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:55:00,882 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-12-01 15:55:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:00,905 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-12-01 15:55:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:55:00,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-01 15:55:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:00,907 INFO L225 Difference]: With dead ends: 56 [2020-12-01 15:55:00,907 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:55:00,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:55:00,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:55:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:55:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:55:00,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:55:00,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-01 15:55:00,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:00,910 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:55:00,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:55:00,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:55:00,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:55:00,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:55:00,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:55:00 BasicIcfg [2020-12-01 15:55:00,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:55:00,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:55:00,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:55:00,914 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:55:00,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:54:53" (3/4) ... [2020-12-01 15:55:00,918 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:55:00,924 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-01 15:55:00,925 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-01 15:55:00,925 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-01 15:55:00,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 15:55:00,931 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:55:00,931 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:55:00,931 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:55:00,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a70e622c-1c21-41cf-aa11-6c6151a164d9/bin/uautomizer/witness.graphml [2020-12-01 15:55:00,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:55:00,998 INFO L168 Benchmark]: Toolchain (without parser) took 9065.70 ms. Allocated memory was 90.2 MB in the beginning and 161.5 MB in the end (delta: 71.3 MB). Free memory was 55.3 MB in the beginning and 104.4 MB in the end (delta: -49.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:55:00,999 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 63.2 MB in the beginning and 63.2 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:55:01,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.21 ms. Allocated memory is still 90.2 MB. Free memory was 55.2 MB in the beginning and 46.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:55:01,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.98 ms. Allocated memory is still 90.2 MB. Free memory was 46.4 MB in the beginning and 44.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:55:01,001 INFO L168 Benchmark]: Boogie Preprocessor took 65.87 ms. Allocated memory is still 90.2 MB. Free memory was 44.7 MB in the beginning and 43.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:55:01,002 INFO L168 Benchmark]: RCFGBuilder took 658.75 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 43.1 MB in the beginning and 79.6 MB in the end (delta: -36.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:55:01,003 INFO L168 Benchmark]: TraceAbstraction took 7399.86 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 79.6 MB in the beginning and 106.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:55:01,004 INFO L168 Benchmark]: Witness Printer took 82.33 ms. Allocated memory is still 161.5 MB. Free memory was 106.5 MB in the beginning and 104.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:55:01,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 63.2 MB in the beginning and 63.2 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 742.21 ms. Allocated memory is still 90.2 MB. Free memory was 55.2 MB in the beginning and 46.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.98 ms. Allocated memory is still 90.2 MB. Free memory was 46.4 MB in the beginning and 44.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.87 ms. Allocated memory is still 90.2 MB. Free memory was 44.7 MB in the beginning and 43.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 658.75 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 43.1 MB in the beginning and 79.6 MB in the end (delta: -36.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7399.86 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 79.6 MB in the beginning and 106.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * Witness Printer took 82.33 ms. Allocated memory is still 161.5 MB. Free memory was 106.5 MB in the beginning and 104.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1074 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.9s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 56 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...