./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/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 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:01:19,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:01:19,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:01:19,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:01:19,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:01:19,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:01:19,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:01:19,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:01:19,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:01:19,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:01:19,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:01:19,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:01:19,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:01:19,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:01:19,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:01:19,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:01:19,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:01:19,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:01:19,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:01:19,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:01:19,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:01:19,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:01:19,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:01:19,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:01:19,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:01:19,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:01:19,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:01:19,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:01:19,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:01:19,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:01:19,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:01:19,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:01:19,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:01:19,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:01:19,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:01:19,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:01:19,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:01:19,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:01:19,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:01:19,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:01:19,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:01:19,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:01:19,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:01:19,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:01:19,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:01:19,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:01:19,648 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:01:19,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:01:19,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:01:19,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:01:19,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:01:19,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:01:19,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:01:19,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:01:19,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:01:19,651 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:01:19,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:01:19,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:01:19,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:01:19,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:01:19,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:01:19,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:01:19,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:01:19,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:01:19,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:01:19,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:01:19,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:01:19,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:01:19,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:01:19,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:01:19,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:01:19,655 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_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2020-11-30 01:01:19,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:01:20,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:01:20,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:01:20,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:01:20,013 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:01:20,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/../../sv-benchmarks/c/locks/test_locks_14-2.c [2020-11-30 01:01:20,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/data/ab04c5e90/e39d8a0a406f42978a8071221fe67126/FLAG22a1f5786 [2020-11-30 01:01:20,636 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:01:20,637 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/sv-benchmarks/c/locks/test_locks_14-2.c [2020-11-30 01:01:20,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/data/ab04c5e90/e39d8a0a406f42978a8071221fe67126/FLAG22a1f5786 [2020-11-30 01:01:21,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/data/ab04c5e90/e39d8a0a406f42978a8071221fe67126 [2020-11-30 01:01:21,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:01:21,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:01:21,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:01:21,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:01:21,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:01:21,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53280767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21, skipping insertion in model container [2020-11-30 01:01:21,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:01:21,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:01:21,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:01:21,343 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:01:21,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:01:21,420 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:01:21,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21 WrapperNode [2020-11-30 01:01:21,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:01:21,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:01:21,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:01:21,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:01:21,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:01:21,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:01:21,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:01:21,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:01:21,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... [2020-11-30 01:01:21,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:01:21,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:01:21,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:01:21,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:01:21,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/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 [2020-11-30 01:01:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:01:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:01:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:01:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:01:22,219 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:01:22,220 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-30 01:01:22,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:22 BoogieIcfgContainer [2020-11-30 01:01:22,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:01:22,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:01:22,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:01:22,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:01:22,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:01:21" (1/3) ... [2020-11-30 01:01:22,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4b0c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:01:22, skipping insertion in model container [2020-11-30 01:01:22,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:21" (2/3) ... [2020-11-30 01:01:22,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4b0c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:01:22, skipping insertion in model container [2020-11-30 01:01:22,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:22" (3/3) ... [2020-11-30 01:01:22,232 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-11-30 01:01:22,245 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:01:22,249 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:01:22,263 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:01:22,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:01:22,288 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:01:22,289 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:01:22,289 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:01:22,289 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:01:22,289 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:01:22,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:01:22,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:01:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-11-30 01:01:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:01:22,312 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:22,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:22,313 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:01:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:22,319 INFO L82 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2020-11-30 01:01:22,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:22,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564222446] [2020-11-30 01:01:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:22,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564222446] [2020-11-30 01:01:22,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:22,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:01:22,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59769890] [2020-11-30 01:01:22,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:22,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:22,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:22,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:22,574 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2020-11-30 01:01:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:22,651 INFO L93 Difference]: Finished difference Result 108 states and 194 transitions. [2020-11-30 01:01:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:22,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-11-30 01:01:22,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:22,665 INFO L225 Difference]: With dead ends: 108 [2020-11-30 01:01:22,665 INFO L226 Difference]: Without dead ends: 93 [2020-11-30 01:01:22,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:22,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-30 01:01:22,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2020-11-30 01:01:22,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-30 01:01:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2020-11-30 01:01:22,716 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2020-11-30 01:01:22,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:22,717 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2020-11-30 01:01:22,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2020-11-30 01:01:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:01:22,718 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:22,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:22,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:01:22,719 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:01:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:22,720 INFO L82 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2020-11-30 01:01:22,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:22,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565116886] [2020-11-30 01:01:22,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:22,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565116886] [2020-11-30 01:01:22,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:22,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:01:22,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161107787] [2020-11-30 01:01:22,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:22,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:22,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:22,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:22,858 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand 3 states. [2020-11-30 01:01:22,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:22,891 INFO L93 Difference]: Finished difference Result 155 states and 291 transitions. [2020-11-30 01:01:22,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:22,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-11-30 01:01:22,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:22,894 INFO L225 Difference]: With dead ends: 155 [2020-11-30 01:01:22,894 INFO L226 Difference]: Without dead ends: 94 [2020-11-30 01:01:22,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:22,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-11-30 01:01:22,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2020-11-30 01:01:22,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-30 01:01:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2020-11-30 01:01:22,934 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2020-11-30 01:01:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:22,935 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2020-11-30 01:01:22,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2020-11-30 01:01:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:01:22,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:22,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:22,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:01:22,937 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:01:22,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:22,937 INFO L82 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2020-11-30 01:01:22,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:22,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028638811] [2020-11-30 01:01:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:23,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028638811] [2020-11-30 01:01:23,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:23,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:01:23,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140482277] [2020-11-30 01:01:23,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:23,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:23,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:23,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:23,053 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand 3 states. [2020-11-30 01:01:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:23,090 INFO L93 Difference]: Finished difference Result 143 states and 261 transitions. [2020-11-30 01:01:23,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:23,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-11-30 01:01:23,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:23,093 INFO L225 Difference]: With dead ends: 143 [2020-11-30 01:01:23,093 INFO L226 Difference]: Without dead ends: 96 [2020-11-30 01:01:23,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:23,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-30 01:01:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-11-30 01:01:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-30 01:01:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2020-11-30 01:01:23,107 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2020-11-30 01:01:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:23,108 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2020-11-30 01:01:23,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2020-11-30 01:01:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:01:23,109 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:23,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:23,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:01:23,110 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:01:23,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:23,110 INFO L82 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2020-11-30 01:01:23,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:23,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676636601] [2020-11-30 01:01:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:23,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:23,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676636601] [2020-11-30 01:01:23,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:23,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:01:23,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064065253] [2020-11-30 01:01:23,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:23,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:23,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:23,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:23,181 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand 3 states. [2020-11-30 01:01:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:23,239 INFO L93 Difference]: Finished difference Result 216 states and 398 transitions. [2020-11-30 01:01:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:23,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-11-30 01:01:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:23,242 INFO L225 Difference]: With dead ends: 216 [2020-11-30 01:01:23,242 INFO L226 Difference]: Without dead ends: 127 [2020-11-30 01:01:23,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-30 01:01:23,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-11-30 01:01:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-30 01:01:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2020-11-30 01:01:23,269 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2020-11-30 01:01:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:23,269 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2020-11-30 01:01:23,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2020-11-30 01:01:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:01:23,270 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:23,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:23,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:01:23,271 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:01:23,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:23,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2020-11-30 01:01:23,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:23,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952933274] [2020-11-30 01:01:23,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:23,336 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:23,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:23,428 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:01:23,428 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:01:23,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:01:23,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:01:23 BoogieIcfgContainer [2020-11-30 01:01:23,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:01:23,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:01:23,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:01:23,502 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:01:23,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:22" (3/4) ... [2020-11-30 01:01:23,504 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:01:23,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_14d5c7fa-7398-4c0f-b60c-dfbe26f94cdd/bin/uautomizer/witness.graphml [2020-11-30 01:01:23,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:01:23,599 INFO L168 Benchmark]: Toolchain (without parser) took 2560.55 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 68.2 MB in the end (delta: 18.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:23,599 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 59.2 MB in the beginning and 59.1 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:01:23,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.90 ms. Allocated memory is still 119.5 MB. Free memory was 86.4 MB in the beginning and 96.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:23,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.71 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 95.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:01:23,601 INFO L168 Benchmark]: Boogie Preprocessor took 29.56 ms. Allocated memory is still 119.5 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:23,601 INFO L168 Benchmark]: RCFGBuilder took 701.54 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 69.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:23,602 INFO L168 Benchmark]: TraceAbstraction took 1276.01 ms. Allocated memory is still 119.5 MB. Free memory was 69.8 MB in the beginning and 71.6 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:01:23,602 INFO L168 Benchmark]: Witness Printer took 91.56 ms. Allocated memory is still 119.5 MB. Free memory was 71.6 MB in the beginning and 68.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:23,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 59.2 MB in the beginning and 59.1 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.90 ms. Allocated memory is still 119.5 MB. Free memory was 86.4 MB in the beginning and 96.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.71 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 95.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.56 ms. Allocated memory is still 119.5 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 701.54 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 69.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1276.01 ms. Allocated memory is still 119.5 MB. Free memory was 69.8 MB in the beginning and 71.6 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 91.56 ms. Allocated memory is still 119.5 MB. Free memory was 71.6 MB in the beginning and 68.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 [L88] COND FALSE !(p1 != 0) [L92] COND FALSE !(p2 != 0) [L96] COND FALSE !(p3 != 0) [L100] COND TRUE p4 != 0 [L101] lk4 = 1 [L104] COND TRUE p5 != 0 [L105] lk5 = 1 [L108] COND TRUE p6 != 0 [L109] lk6 = 1 [L112] COND TRUE p7 != 0 [L113] lk7 = 1 [L116] COND TRUE p8 != 0 [L117] lk8 = 1 [L120] COND TRUE p9 != 0 [L121] lk9 = 1 [L124] COND TRUE p10 != 0 [L125] lk10 = 1 [L128] COND FALSE !(p11 != 0) [L132] COND TRUE p12 != 0 [L133] lk12 = 1 [L136] COND TRUE p13 != 0 [L137] lk13 = 1 [L140] COND TRUE p14 != 0 [L141] lk14 = 1 [L146] COND FALSE !(p1 != 0) [L151] COND FALSE !(p2 != 0) [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 447 SDtfs, 282 SDslu, 286 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 4440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...