./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN --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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- 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-6b4ec56 [2022-11-20 11:25:12,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:25:12,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:25:12,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:25:12,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:25:12,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:25:12,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:25:12,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:25:12,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:25:12,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:25:12,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:25:12,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:25:12,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:25:12,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:25:12,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:25:12,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:25:12,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:25:12,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:25:12,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:25:12,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:25:12,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:25:12,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:25:12,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:25:12,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:25:12,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:25:12,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:25:12,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:25:12,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:25:12,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:25:12,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:25:12,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:25:12,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:25:12,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:25:12,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:25:12,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:25:12,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:25:12,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:25:12,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:25:12,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:25:12,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:25:12,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:25:12,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:25:12,939 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:25:12,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:25:12,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:25:12,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:25:12,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:25:12,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:25:12,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:25:12,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:25:12,942 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:25:12,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:25:12,943 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:25:12,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:25:12,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:25:12,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:25:12,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:25:12,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:25:12,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:25:12,944 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:25:12,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:25:12,945 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:25:12,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:25:12,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:25:12,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:25:12,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:25:12,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:25:12,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:25:12,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:25:12,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:25:12,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:25:12,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:25:12,947 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:25:12,947 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:25:12,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:25:12,948 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_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2022-11-20 11:25:13,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:25:13,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:25:13,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:25:13,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:25:13,274 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:25:13,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-20 11:25:16,376 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:25:16,689 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:25:16,722 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-20 11:25:16,764 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/data/da015280e/f2d1c8558cb5422e8431505812e21567/FLAG2901df5f4 [2022-11-20 11:25:16,779 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/data/da015280e/f2d1c8558cb5422e8431505812e21567 [2022-11-20 11:25:16,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:25:16,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:25:16,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:25:16,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:25:16,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:25:16,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:25:16" (1/1) ... [2022-11-20 11:25:16,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dc85cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:16, skipping insertion in model container [2022-11-20 11:25:16,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:25:16" (1/1) ... [2022-11-20 11:25:16,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:25:16,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:25:17,485 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_19dadac5-646c-43de-8b6e-c32a11bb2fdf/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-20 11:25:17,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:25:17,567 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:25:17,626 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_19dadac5-646c-43de-8b6e-c32a11bb2fdf/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-20 11:25:17,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:25:17,739 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:25:17,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17 WrapperNode [2022-11-20 11:25:17,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:25:17,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:25:17,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:25:17,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:25:17,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,839 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 339 [2022-11-20 11:25:17,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:25:17,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:25:17,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:25:17,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:25:17,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:25:17,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:25:17,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:25:17,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:25:17,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (1/1) ... [2022-11-20 11:25:17,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:25:17,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:25:17,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:25:17,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dadac5-646c-43de-8b6e-c32a11bb2fdf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:25:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:25:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:25:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-20 11:25:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-20 11:25:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:25:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:25:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-20 11:25:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-20 11:25:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:25:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:25:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:25:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:25:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:25:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-20 11:25:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-20 11:25:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:25:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:25:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:25:18,028 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:25:18,271 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:25:18,273 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:25:18,930 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:25:18,941 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:25:18,941 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2022-11-20 11:25:18,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:18 BoogieIcfgContainer [2022-11-20 11:25:18,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:25:18,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:25:18,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:25:18,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:25:18,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:25:16" (1/3) ... [2022-11-20 11:25:18,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c50179c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:18, skipping insertion in model container [2022-11-20 11:25:18,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:17" (2/3) ... [2022-11-20 11:25:18,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c50179c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:18, skipping insertion in model container [2022-11-20 11:25:18,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:18" (3/3) ... [2022-11-20 11:25:18,958 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2022-11-20 11:25:18,967 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:25:18,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:25:18,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:25:18,977 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:25:19,111 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-20 11:25:19,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 363 transitions, 768 flow [2022-11-20 11:25:19,595 INFO L130 PetriNetUnfolder]: 164/1099 cut-off events. [2022-11-20 11:25:19,596 INFO L131 PetriNetUnfolder]: For 36/65 co-relation queries the response was YES. [2022-11-20 11:25:19,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 1099 events. 164/1099 cut-off events. For 36/65 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6886 event pairs, 0 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 572. Up to 16 conditions per place. [2022-11-20 11:25:19,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 363 transitions, 768 flow [2022-11-20 11:25:19,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 363 transitions, 768 flow [2022-11-20 11:25:19,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:25:19,664 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;@68ff31e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:25:19,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 11:25:19,691 INFO L130 PetriNetUnfolder]: 9/158 cut-off events. [2022-11-20 11:25:19,691 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:25:19,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:19,693 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2022-11-20 11:25:19,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:25:19,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:19,699 INFO L85 PathProgramCache]: Analyzing trace with hash -550628301, now seen corresponding path program 1 times [2022-11-20 11:25:19,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:19,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671614328] [2022-11-20 11:25:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:19,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:25:19,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:25:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:25:20,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:25:20,088 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:25:20,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 11:25:20,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-20 11:25:20,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-11-20 11:25:20,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-11-20 11:25:20,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-11-20 11:25:20,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-11-20 11:25:20,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-20 11:25:20,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:25:20,097 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:25:20,104 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 11:25:20,104 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 11:25:20,252 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 11:25:20,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 514 places, 585 transitions, 1260 flow [2022-11-20 11:25:22,902 INFO L130 PetriNetUnfolder]: 1130/5606 cut-off events. [2022-11-20 11:25:22,903 INFO L131 PetriNetUnfolder]: For 602/779 co-relation queries the response was YES. [2022-11-20 11:25:23,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6280 conditions, 5606 events. 1130/5606 cut-off events. For 602/779 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 51438 event pairs, 22 based on Foata normal form. 0/4727 useless extension candidates. Maximal degree in co-relation 3512. Up to 192 conditions per place. [2022-11-20 11:25:23,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 514 places, 585 transitions, 1260 flow [2022-11-20 11:25:23,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 514 places, 585 transitions, 1260 flow [2022-11-20 11:25:23,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:25:23,156 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;@68ff31e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:25:23,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-20 11:25:23,201 INFO L130 PetriNetUnfolder]: 28/390 cut-off events. [2022-11-20 11:25:23,201 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 11:25:23,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:23,202 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-11-20 11:25:23,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:25:23,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:23,203 INFO L85 PathProgramCache]: Analyzing trace with hash -619137245, now seen corresponding path program 1 times [2022-11-20 11:25:23,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:23,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944183920] [2022-11-20 11:25:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:23,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:25:23,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:25:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:25:23,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:25:23,342 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:25:23,342 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-20 11:25:23,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-11-20 11:25:23,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2022-11-20 11:25:23,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2022-11-20 11:25:23,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-11-20 11:25:23,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-11-20 11:25:23,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-11-20 11:25:23,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-11-20 11:25:23,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-11-20 11:25:23,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:25:23,344 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:25:23,345 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 11:25:23,345 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 11:25:23,507 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-11-20 11:25:23,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 703 places, 807 transitions, 1758 flow [2022-11-20 11:25:43,063 INFO L130 PetriNetUnfolder]: 8984/31893 cut-off events. [2022-11-20 11:25:43,063 INFO L131 PetriNetUnfolder]: For 7059/7580 co-relation queries the response was YES. [2022-11-20 11:25:45,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39067 conditions, 31893 events. 8984/31893 cut-off events. For 7059/7580 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 351927 event pairs, 1024 based on Foata normal form. 0/27585 useless extension candidates. Maximal degree in co-relation 20460. Up to 2304 conditions per place. [2022-11-20 11:25:45,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 703 places, 807 transitions, 1758 flow [2022-11-20 11:25:46,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 703 places, 807 transitions, 1758 flow [2022-11-20 11:25:46,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:25:46,139 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;@68ff31e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:25:46,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 11:25:46,267 INFO L130 PetriNetUnfolder]: 86/910 cut-off events. [2022-11-20 11:25:46,267 INFO L131 PetriNetUnfolder]: For 45/89 co-relation queries the response was YES. [2022-11-20 11:25:46,267 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:46,268 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-20 11:25:46,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 11:25:46,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:46,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1118254168, now seen corresponding path program 1 times [2022-11-20 11:25:46,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:46,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407489716] [2022-11-20 11:25:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:25:46,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:25:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:25:46,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:25:46,760 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:25:46,761 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2022-11-20 11:25:46,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2022-11-20 11:25:46,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2022-11-20 11:25:46,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-11-20 11:25:46,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-11-20 11:25:46,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2022-11-20 11:25:46,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2022-11-20 11:25:46,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2022-11-20 11:25:46,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2022-11-20 11:25:46,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2022-11-20 11:25:46,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2022-11-20 11:25:46,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:25:46,764 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:25:46,764 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 11:25:46,765 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-20 11:25:46,929 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-11-20 11:25:46,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 892 places, 1029 transitions, 2262 flow