./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R --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 d5cca3532c956cbfb3f8d24df68dd431ff61516e63bcc0106c0529c479d6a4ef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:34:54,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:34:54,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:34:54,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:34:54,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:34:54,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:34:54,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:34:54,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:34:54,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:34:54,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:34:54,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:34:54,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:34:54,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:34:54,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:34:54,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:34:54,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:34:54,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:34:54,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:34:54,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:34:54,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:34:54,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:34:54,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:34:54,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:34:54,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:34:54,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:34:54,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:34:54,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:34:54,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:34:54,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:34:54,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:34:54,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:34:54,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:34:54,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:34:54,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:34:54,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:34:54,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:34:54,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:34:54,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:34:54,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:34:54,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:34:54,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:34:54,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:34:54,732 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:34:54,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:34:54,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:34:54,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:34:54,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:34:54,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:34:54,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:34:54,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:34:54,736 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:34:54,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:34:54,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:34:54,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:34:54,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:34:54,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:34:54,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:34:54,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:34:54,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:34:54,739 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:34:54,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:34:54,740 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:34:54,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:34:54,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:34:54,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:34:54,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:34:54,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:54,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:34:54,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:34:54,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:34:54,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:34:54,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:34:54,744 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:34:54,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:34:54,744 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:34:54,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:34:54,745 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5cca3532c956cbfb3f8d24df68dd431ff61516e63bcc0106c0529c479d6a4ef [2022-11-25 15:34:55,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:34:55,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:34:55,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:34:55,092 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:34:55,092 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:34:55,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i [2022-11-25 15:34:58,245 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:34:58,524 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:34:58,525 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i [2022-11-25 15:34:58,539 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/data/4bf9ad73d/04857625c36d4045ab7dd44fe8f27631/FLAG49e96f8c3 [2022-11-25 15:34:58,554 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/data/4bf9ad73d/04857625c36d4045ab7dd44fe8f27631 [2022-11-25 15:34:58,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:34:58,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:34:58,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:58,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:34:58,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:34:58,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:58" (1/1) ... [2022-11-25 15:34:58,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a20ddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:58, skipping insertion in model container [2022-11-25 15:34:58,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:58" (1/1) ... [2022-11-25 15:34:58,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:34:58,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:34:58,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i[23611,23624] [2022-11-25 15:34:59,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:59,109 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:34:59,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i[23611,23624] [2022-11-25 15:34:59,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:59,289 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:34:59,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59 WrapperNode [2022-11-25 15:34:59,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:59,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:59,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:34:59,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:34:59,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,372 INFO L138 Inliner]: procedures = 145, calls = 317, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 519 [2022-11-25 15:34:59,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:59,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:34:59,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:34:59,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:34:59,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:34:59,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:34:59,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:34:59,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:34:59,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (1/1) ... [2022-11-25 15:34:59,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:59,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:59,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:34:59,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:34:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:34:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:34:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 15:34:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 15:34:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:34:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:34:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:34:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2022-11-25 15:34:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2022-11-25 15:34:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-11-25 15:34:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-11-25 15:34:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:34:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-11-25 15:34:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-11-25 15:34:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-25 15:34:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-25 15:34:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:34:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:34:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-11-25 15:34:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-11-25 15:34:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:34:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2022-11-25 15:34:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2022-11-25 15:34:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:34:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:34:59,816 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:34:59,854 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:35:02,867 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:35:02,887 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:35:02,887 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 15:35:02,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:35:02 BoogieIcfgContainer [2022-11-25 15:35:02,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:35:02,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:35:02,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:35:02,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:35:02,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:34:58" (1/3) ... [2022-11-25 15:35:02,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917b073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:35:02, skipping insertion in model container [2022-11-25 15:35:02,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:59" (2/3) ... [2022-11-25 15:35:02,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917b073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:35:02, skipping insertion in model container [2022-11-25 15:35:02,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:35:02" (3/3) ... [2022-11-25 15:35:02,909 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_time_var_mutex.i [2022-11-25 15:35:02,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:35:02,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:35:02,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:35:03,004 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@51fab78c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:35:03,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:35:03,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 93 states have internal predecessors, (123), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 15:35:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 15:35:03,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:03,036 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:35:03,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:03,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:03,043 INFO L85 PathProgramCache]: Analyzing trace with hash 354437133, now seen corresponding path program 1 times [2022-11-25 15:35:03,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:03,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597030579] [2022-11-25 15:35:03,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:03,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 15:39:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:39:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 15:39:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:39:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:39:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:39:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:39:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-25 15:39:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:39:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 15:39:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 15:39:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 15:39:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:39:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 15:39:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:39:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:39:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 15:39:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 15:39:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 15:39:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 15:39:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 15:39:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-25 15:39:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:31,322 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-11-25 15:39:31,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:31,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597030579] [2022-11-25 15:39:31,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597030579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:31,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:31,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:39:31,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346308908] [2022-11-25 15:39:31,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:31,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:39:31,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:39:31,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:39:31,366 INFO L87 Difference]: Start difference. First operand has 146 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 93 states have internal predecessors, (123), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-25 15:39:31,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:31,477 INFO L93 Difference]: Finished difference Result 294 states and 471 transitions. [2022-11-25 15:39:31,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:39:31,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 144 [2022-11-25 15:39:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:31,489 INFO L225 Difference]: With dead ends: 294 [2022-11-25 15:39:31,489 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 15:39:31,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:39:31,497 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 4 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:31,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 410 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:39:31,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 15:39:31,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2022-11-25 15:39:31,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 90 states have (on average 1.288888888888889) internal successors, (116), 90 states have internal predecessors, (116), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 15:39:31,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 206 transitions. [2022-11-25 15:39:31,551 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 206 transitions. Word has length 144 [2022-11-25 15:39:31,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:31,552 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 206 transitions. [2022-11-25 15:39:31,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-25 15:39:31,553 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 206 transitions. [2022-11-25 15:39:31,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-25 15:39:31,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:31,559 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:39:31,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:39:31,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:31,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:31,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1665600231, now seen corresponding path program 1 times [2022-11-25 15:39:31,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:31,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000032671] [2022-11-25 15:39:31,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:31,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:43:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:43:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:43:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 15:43:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 15:43:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 15:43:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 15:43:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:43:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:43:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:43:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:43:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 15:43:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:43:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:43:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 15:43:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:43:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 15:43:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 15:43:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 15:43:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 15:43:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 15:43:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 15:43:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,055 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-11-25 15:43:13,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:13,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000032671] [2022-11-25 15:43:13,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000032671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:13,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:13,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:43:13,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162004377] [2022-11-25 15:43:13,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:13,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:43:13,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:13,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:43:13,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:43:13,065 INFO L87 Difference]: Start difference. First operand 143 states and 206 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-25 15:43:13,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:13,129 INFO L93 Difference]: Finished difference Result 285 states and 412 transitions. [2022-11-25 15:43:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:43:13,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2022-11-25 15:43:13,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:13,132 INFO L225 Difference]: With dead ends: 285 [2022-11-25 15:43:13,133 INFO L226 Difference]: Without dead ends: 145 [2022-11-25 15:43:13,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:43:13,135 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:13,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 403 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:43:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-25 15:43:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2022-11-25 15:43:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 91 states have (on average 1.2857142857142858) internal successors, (117), 91 states have internal predecessors, (117), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 15:43:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 207 transitions. [2022-11-25 15:43:13,152 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 207 transitions. Word has length 147 [2022-11-25 15:43:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:13,153 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 207 transitions. [2022-11-25 15:43:13,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-25 15:43:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 207 transitions. [2022-11-25 15:43:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-25 15:43:13,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:13,161 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:43:13,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:43:13,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:13,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:13,162 INFO L85 PathProgramCache]: Analyzing trace with hash -251755493, now seen corresponding path program 1 times [2022-11-25 15:43:13,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:13,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381856761] [2022-11-25 15:43:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:13,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:48:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 15:48:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 15:48:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:48:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:48:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:48:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 15:48:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:48:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 15:48:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:48:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:48:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 15:48:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 15:48:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 15:48:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 15:48:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:48:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:48:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 15:48:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-25 15:48:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 15:48:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 15:48:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 15:48:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:27,904 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-11-25 15:48:27,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:48:27,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381856761] [2022-11-25 15:48:27,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381856761] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:48:27,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678735432] [2022-11-25 15:48:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:48:27,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:48:27,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:48:27,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:48:27,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1a21f7-8ad6-4c9d-97af-4f97621696c5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process