./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8 --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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- 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-2329fc7 [2022-12-13 15:48:39,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:48:39,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:48:39,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:48:39,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:48:39,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:48:39,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:48:39,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:48:39,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:48:39,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:48:39,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:48:39,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:48:39,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:48:39,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:48:39,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:48:39,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:48:39,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:48:39,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:48:39,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:48:39,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:48:39,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:48:39,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:48:39,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:48:39,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:48:39,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:48:39,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:48:39,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:48:39,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:48:39,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:48:39,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:48:39,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:48:39,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:48:39,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:48:39,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:48:39,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:48:39,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:48:39,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:48:39,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:48:39,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:48:39,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:48:39,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:48:39,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:48:39,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:48:39,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:48:39,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:48:39,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:48:39,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:48:39,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:48:39,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:48:39,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:48:39,886 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:48:39,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:48:39,886 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:48:39,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:48:39,887 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:48:39,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:48:39,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:48:39,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:48:39,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:48:39,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:48:39,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:48:39,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:48:39,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:48:39,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:48:39,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:48:39,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:48:39,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:48:39,889 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:48:39,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:48:39,889 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:48:39,889 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_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2022-12-13 15:48:40,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:48:40,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:48:40,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:48:40,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:48:40,070 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:48:40,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-13 15:48:42,710 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:48:42,922 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:48:42,923 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-13 15:48:42,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/data/4a97caf62/7ed40089ea5746429c04a19b23bded01/FLAGaaa6a7fa9 [2022-12-13 15:48:42,944 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/data/4a97caf62/7ed40089ea5746429c04a19b23bded01 [2022-12-13 15:48:42,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:48:42,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:48:42,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:48:42,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:48:42,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:48:42,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:48:42" (1/1) ... [2022-12-13 15:48:42,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f7fbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:42, skipping insertion in model container [2022-12-13 15:48:42,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:48:42" (1/1) ... [2022-12-13 15:48:42,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:48:42,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:48:43,086 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_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-13 15:48:43,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:48:43,190 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:48:43,199 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_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-13 15:48:43,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:48:43,240 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:48:43,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43 WrapperNode [2022-12-13 15:48:43,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:48:43,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:48:43,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:48:43,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:48:43,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,271 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2022-12-13 15:48:43,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:48:43,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:48:43,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:48:43,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:48:43,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:48:43,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:48:43,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:48:43,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:48:43,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (1/1) ... [2022-12-13 15:48:43,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:48:43,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:48:43,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:48:43,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:48:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:48:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:48:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:48:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:48:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:48:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:48:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:48:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:48:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:48:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:48:43,347 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:48:43,437 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:48:43,439 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:48:43,657 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:48:43,665 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:48:43,665 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:48:43,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:48:43 BoogieIcfgContainer [2022-12-13 15:48:43,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:48:43,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:48:43,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:48:43,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:48:43,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:48:42" (1/3) ... [2022-12-13 15:48:43,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ada497d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:48:43, skipping insertion in model container [2022-12-13 15:48:43,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:48:43" (2/3) ... [2022-12-13 15:48:43,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ada497d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:48:43, skipping insertion in model container [2022-12-13 15:48:43,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:48:43" (3/3) ... [2022-12-13 15:48:43,676 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-13 15:48:43,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:48:43,696 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:48:43,696 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-13 15:48:43,696 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:48:43,756 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 15:48:43,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 183 transitions, 371 flow [2022-12-13 15:48:43,869 INFO L130 PetriNetUnfolder]: 8/186 cut-off events. [2022-12-13 15:48:43,869 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:48:43,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 186 events. 8/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 164 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2022-12-13 15:48:43,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 183 transitions, 371 flow [2022-12-13 15:48:43,880 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 181 transitions, 365 flow [2022-12-13 15:48:43,883 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:48:43,893 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 181 transitions, 365 flow [2022-12-13 15:48:43,896 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 181 transitions, 365 flow [2022-12-13 15:48:43,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 181 transitions, 365 flow [2022-12-13 15:48:43,935 INFO L130 PetriNetUnfolder]: 8/181 cut-off events. [2022-12-13 15:48:43,935 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:48:43,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 181 events. 8/181 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 154 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2022-12-13 15:48:43,941 INFO L119 LiptonReduction]: Number of co-enabled transitions 8736 [2022-12-13 15:48:47,598 INFO L134 LiptonReduction]: Checked pairs total: 14475 [2022-12-13 15:48:47,598 INFO L136 LiptonReduction]: Total number of compositions: 193 [2022-12-13 15:48:47,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:48:47,618 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;@dbf24ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:48:47,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 15:48:47,623 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2022-12-13 15:48:47,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:48:47,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:47,623 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:48:47,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash -501680684, now seen corresponding path program 1 times [2022-12-13 15:48:47,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:47,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122280697] [2022-12-13 15:48:47,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:47,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:47,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122280697] [2022-12-13 15:48:47,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122280697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:47,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:47,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:48:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005702318] [2022-12-13 15:48:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:47,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:48:47,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:48:48,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:48:48,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 376 [2022-12-13 15:48:48,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:48,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 376 [2022-12-13 15:48:48,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:48,178 INFO L130 PetriNetUnfolder]: 105/297 cut-off events. [2022-12-13 15:48:48,179 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:48:48,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 297 events. 105/297 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1250 event pairs, 9 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 521. Up to 141 conditions per place. [2022-12-13 15:48:48,180 INFO L137 encePairwiseOnDemand]: 369/376 looper letters, 33 selfloop transitions, 5 changer transitions 11/55 dead transitions. [2022-12-13 15:48:48,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 55 transitions, 211 flow [2022-12-13 15:48:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:48:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:48:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 881 transitions. [2022-12-13 15:48:48,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46861702127659577 [2022-12-13 15:48:48,194 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 881 transitions. [2022-12-13 15:48:48,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 881 transitions. [2022-12-13 15:48:48,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:48,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 881 transitions. [2022-12-13 15:48:48,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,209 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,211 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 67 flow. Second operand 5 states and 881 transitions. [2022-12-13 15:48:48,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 55 transitions, 211 flow [2022-12-13 15:48:48,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 55 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:48:48,214 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 83 flow [2022-12-13 15:48:48,216 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2022-12-13 15:48:48,219 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2022-12-13 15:48:48,219 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 83 flow [2022-12-13 15:48:48,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:48,219 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:48,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:48:48,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:48,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:48,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1078780679, now seen corresponding path program 1 times [2022-12-13 15:48:48,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:48,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539380134] [2022-12-13 15:48:48,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:48,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:48,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:48,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539380134] [2022-12-13 15:48:48,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539380134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:48,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:48,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:48:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421333027] [2022-12-13 15:48:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:48,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:48:48,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:48,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:48:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:48:48,393 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 376 [2022-12-13 15:48:48,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:48,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 376 [2022-12-13 15:48:48,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:48,565 INFO L130 PetriNetUnfolder]: 80/232 cut-off events. [2022-12-13 15:48:48,565 INFO L131 PetriNetUnfolder]: For 50/52 co-relation queries the response was YES. [2022-12-13 15:48:48,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 232 events. 80/232 cut-off events. For 50/52 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 989 event pairs, 16 based on Foata normal form. 2/224 useless extension candidates. Maximal degree in co-relation 479. Up to 72 conditions per place. [2022-12-13 15:48:48,567 INFO L137 encePairwiseOnDemand]: 367/376 looper letters, 40 selfloop transitions, 18 changer transitions 0/64 dead transitions. [2022-12-13 15:48:48,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 287 flow [2022-12-13 15:48:48,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:48:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 15:48:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1969 transitions. [2022-12-13 15:48:48,574 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4363918439716312 [2022-12-13 15:48:48,574 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1969 transitions. [2022-12-13 15:48:48,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1969 transitions. [2022-12-13 15:48:48,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:48,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1969 transitions. [2022-12-13 15:48:48,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 164.08333333333334) internal successors, (1969), 12 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 376.0) internal successors, (4888), 13 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,584 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 376.0) internal successors, (4888), 13 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,584 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 83 flow. Second operand 12 states and 1969 transitions. [2022-12-13 15:48:48,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 287 flow [2022-12-13 15:48:48,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 64 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:48:48,586 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 180 flow [2022-12-13 15:48:48,586 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=180, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2022-12-13 15:48:48,586 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2022-12-13 15:48:48,586 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 180 flow [2022-12-13 15:48:48,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,587 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:48,587 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:48,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:48:48,587 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:48,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:48,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1862454741, now seen corresponding path program 1 times [2022-12-13 15:48:48,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:48,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315704694] [2022-12-13 15:48:48,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:48,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:48,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:48,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315704694] [2022-12-13 15:48:48,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315704694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:48,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:48,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:48:48,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557718793] [2022-12-13 15:48:48,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:48,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:48:48,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:48,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:48:48,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:48:48,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 376 [2022-12-13 15:48:48,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:48,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 376 [2022-12-13 15:48:48,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:48,730 INFO L130 PetriNetUnfolder]: 84/240 cut-off events. [2022-12-13 15:48:48,730 INFO L131 PetriNetUnfolder]: For 152/152 co-relation queries the response was YES. [2022-12-13 15:48:48,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 240 events. 84/240 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 965 event pairs, 26 based on Foata normal form. 15/255 useless extension candidates. Maximal degree in co-relation 629. Up to 125 conditions per place. [2022-12-13 15:48:48,731 INFO L137 encePairwiseOnDemand]: 368/376 looper letters, 40 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2022-12-13 15:48:48,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 51 transitions, 322 flow [2022-12-13 15:48:48,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:48:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:48:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-12-13 15:48:48,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4627659574468085 [2022-12-13 15:48:48,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-12-13 15:48:48,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-12-13 15:48:48,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:48,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-12-13 15:48:48,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,738 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 180 flow. Second operand 3 states and 522 transitions. [2022-12-13 15:48:48,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 51 transitions, 322 flow [2022-12-13 15:48:48,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 294 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-12-13 15:48:48,740 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 182 flow [2022-12-13 15:48:48,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2022-12-13 15:48:48,741 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2022-12-13 15:48:48,741 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 182 flow [2022-12-13 15:48:48,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:48,741 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:48,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:48:48,742 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1621028896, now seen corresponding path program 1 times [2022-12-13 15:48:48,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:48,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119287789] [2022-12-13 15:48:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:48,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:48,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:48,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:48,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119287789] [2022-12-13 15:48:48,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119287789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:48,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:48,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:48:48,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840457523] [2022-12-13 15:48:48,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:48,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:48:48,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:48:48,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:48:48,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 376 [2022-12-13 15:48:48,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:48,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:48,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 376 [2022-12-13 15:48:48,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:49,038 INFO L130 PetriNetUnfolder]: 60/204 cut-off events. [2022-12-13 15:48:49,038 INFO L131 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-12-13 15:48:49,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 204 events. 60/204 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 884 event pairs, 32 based on Foata normal form. 9/206 useless extension candidates. Maximal degree in co-relation 581. Up to 107 conditions per place. [2022-12-13 15:48:49,040 INFO L137 encePairwiseOnDemand]: 368/376 looper letters, 40 selfloop transitions, 11 changer transitions 1/58 dead transitions. [2022-12-13 15:48:49,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 345 flow [2022-12-13 15:48:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:48:49,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 15:48:49,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1329 transitions. [2022-12-13 15:48:49,044 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4418218085106383 [2022-12-13 15:48:49,044 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1329 transitions. [2022-12-13 15:48:49,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1329 transitions. [2022-12-13 15:48:49,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:49,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1329 transitions. [2022-12-13 15:48:49,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 166.125) internal successors, (1329), 8 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 376.0) internal successors, (3384), 9 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,054 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 376.0) internal successors, (3384), 9 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,054 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 182 flow. Second operand 8 states and 1329 transitions. [2022-12-13 15:48:49,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 345 flow [2022-12-13 15:48:49,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 58 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:48:49,057 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 228 flow [2022-12-13 15:48:49,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=228, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2022-12-13 15:48:49,058 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2022-12-13 15:48:49,058 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 228 flow [2022-12-13 15:48:49,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:49,059 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:49,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:48:49,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:49,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:49,060 INFO L85 PathProgramCache]: Analyzing trace with hash -988804676, now seen corresponding path program 1 times [2022-12-13 15:48:49,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:49,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186653108] [2022-12-13 15:48:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:49,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:49,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:49,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186653108] [2022-12-13 15:48:49,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186653108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:49,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:49,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:48:49,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600078733] [2022-12-13 15:48:49,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:49,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:48:49,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:49,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:48:49,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:48:49,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 376 [2022-12-13 15:48:49,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 228 flow. Second operand has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:49,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 376 [2022-12-13 15:48:49,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:49,279 INFO L130 PetriNetUnfolder]: 59/209 cut-off events. [2022-12-13 15:48:49,279 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-12-13 15:48:49,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 209 events. 59/209 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 898 event pairs, 27 based on Foata normal form. 1/207 useless extension candidates. Maximal degree in co-relation 613. Up to 116 conditions per place. [2022-12-13 15:48:49,280 INFO L137 encePairwiseOnDemand]: 371/376 looper letters, 40 selfloop transitions, 10 changer transitions 0/58 dead transitions. [2022-12-13 15:48:49,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 58 transitions, 391 flow [2022-12-13 15:48:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:48:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:48:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 850 transitions. [2022-12-13 15:48:49,282 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4521276595744681 [2022-12-13 15:48:49,282 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 850 transitions. [2022-12-13 15:48:49,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 850 transitions. [2022-12-13 15:48:49,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:49,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 850 transitions. [2022-12-13 15:48:49,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,285 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,286 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 228 flow. Second operand 5 states and 850 transitions. [2022-12-13 15:48:49,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 58 transitions, 391 flow [2022-12-13 15:48:49,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 375 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 15:48:49,288 INFO L231 Difference]: Finished difference. Result has 59 places, 46 transitions, 253 flow [2022-12-13 15:48:49,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=59, PETRI_TRANSITIONS=46} [2022-12-13 15:48:49,288 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 26 predicate places. [2022-12-13 15:48:49,288 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 46 transitions, 253 flow [2022-12-13 15:48:49,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:49,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:49,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:48:49,289 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:49,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:49,289 INFO L85 PathProgramCache]: Analyzing trace with hash 479158764, now seen corresponding path program 1 times [2022-12-13 15:48:49,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:49,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186745705] [2022-12-13 15:48:49,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:49,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:49,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:49,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:49,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186745705] [2022-12-13 15:48:49,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186745705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:49,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:49,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:48:49,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765060836] [2022-12-13 15:48:49,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:49,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:48:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:49,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:48:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:48:49,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 376 [2022-12-13 15:48:49,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 253 flow. Second operand has 5 states, 5 states have (on average 165.6) internal successors, (828), 5 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:49,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 376 [2022-12-13 15:48:49,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:49,486 INFO L130 PetriNetUnfolder]: 56/195 cut-off events. [2022-12-13 15:48:49,487 INFO L131 PetriNetUnfolder]: For 139/139 co-relation queries the response was YES. [2022-12-13 15:48:49,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 195 events. 56/195 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 845 event pairs, 32 based on Foata normal form. 4/195 useless extension candidates. Maximal degree in co-relation 603. Up to 106 conditions per place. [2022-12-13 15:48:49,488 INFO L137 encePairwiseOnDemand]: 369/376 looper letters, 37 selfloop transitions, 10 changer transitions 1/54 dead transitions. [2022-12-13 15:48:49,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 370 flow [2022-12-13 15:48:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:48:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 15:48:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1186 transitions. [2022-12-13 15:48:49,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4506079027355623 [2022-12-13 15:48:49,492 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1186 transitions. [2022-12-13 15:48:49,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1186 transitions. [2022-12-13 15:48:49,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:49,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1186 transitions. [2022-12-13 15:48:49,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 169.42857142857142) internal successors, (1186), 7 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,497 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 253 flow. Second operand 7 states and 1186 transitions. [2022-12-13 15:48:49,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 370 flow [2022-12-13 15:48:49,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 352 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-13 15:48:49,499 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 260 flow [2022-12-13 15:48:49,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=260, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2022-12-13 15:48:49,500 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2022-12-13 15:48:49,500 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 260 flow [2022-12-13 15:48:49,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 165.6) internal successors, (828), 5 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:49,501 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:49,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:48:49,501 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:49,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1053501727, now seen corresponding path program 1 times [2022-12-13 15:48:49,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:49,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115061229] [2022-12-13 15:48:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:49,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:49,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:49,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:49,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115061229] [2022-12-13 15:48:49,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115061229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:49,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:49,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:48:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912373355] [2022-12-13 15:48:49,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:49,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:48:49,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:49,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:48:49,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:48:49,678 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 376 [2022-12-13 15:48:49,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:49,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 376 [2022-12-13 15:48:49,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:49,748 INFO L130 PetriNetUnfolder]: 57/190 cut-off events. [2022-12-13 15:48:49,748 INFO L131 PetriNetUnfolder]: For 230/230 co-relation queries the response was YES. [2022-12-13 15:48:49,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 190 events. 57/190 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 758 event pairs, 17 based on Foata normal form. 4/193 useless extension candidates. Maximal degree in co-relation 635. Up to 94 conditions per place. [2022-12-13 15:48:49,749 INFO L137 encePairwiseOnDemand]: 370/376 looper letters, 39 selfloop transitions, 11 changer transitions 3/58 dead transitions. [2022-12-13 15:48:49,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 439 flow [2022-12-13 15:48:49,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:48:49,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:48:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 678 transitions. [2022-12-13 15:48:49,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4507978723404255 [2022-12-13 15:48:49,751 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 678 transitions. [2022-12-13 15:48:49,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 678 transitions. [2022-12-13 15:48:49,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:49,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 678 transitions. [2022-12-13 15:48:49,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,754 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,754 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 260 flow. Second operand 4 states and 678 transitions. [2022-12-13 15:48:49,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 439 flow [2022-12-13 15:48:49,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 425 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 15:48:49,756 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 291 flow [2022-12-13 15:48:49,757 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=291, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2022-12-13 15:48:49,757 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2022-12-13 15:48:49,757 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 291 flow [2022-12-13 15:48:49,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:49,758 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:49,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:48:49,758 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:49,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:49,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1869726558, now seen corresponding path program 1 times [2022-12-13 15:48:49,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:49,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253803883] [2022-12-13 15:48:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:49,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:49,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:49,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253803883] [2022-12-13 15:48:49,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253803883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:49,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:49,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:48:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133230812] [2022-12-13 15:48:49,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:49,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:48:49,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:48:49,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:48:49,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 376 [2022-12-13 15:48:49,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 165.2) internal successors, (826), 5 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:49,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 376 [2022-12-13 15:48:49,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:49,965 INFO L130 PetriNetUnfolder]: 44/163 cut-off events. [2022-12-13 15:48:49,966 INFO L131 PetriNetUnfolder]: For 207/207 co-relation queries the response was YES. [2022-12-13 15:48:49,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 163 events. 44/163 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 619 event pairs, 8 based on Foata normal form. 6/168 useless extension candidates. Maximal degree in co-relation 592. Up to 60 conditions per place. [2022-12-13 15:48:49,967 INFO L137 encePairwiseOnDemand]: 370/376 looper letters, 38 selfloop transitions, 8 changer transitions 1/56 dead transitions. [2022-12-13 15:48:49,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 56 transitions, 432 flow [2022-12-13 15:48:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:48:49,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 15:48:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1342 transitions. [2022-12-13 15:48:49,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4461436170212766 [2022-12-13 15:48:49,969 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1342 transitions. [2022-12-13 15:48:49,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1342 transitions. [2022-12-13 15:48:49,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:49,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1342 transitions. [2022-12-13 15:48:49,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 167.75) internal successors, (1342), 8 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 376.0) internal successors, (3384), 9 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,974 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 376.0) internal successors, (3384), 9 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,974 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 291 flow. Second operand 8 states and 1342 transitions. [2022-12-13 15:48:49,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 56 transitions, 432 flow [2022-12-13 15:48:49,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 56 transitions, 425 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 15:48:49,977 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 294 flow [2022-12-13 15:48:49,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=294, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2022-12-13 15:48:49,977 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 33 predicate places. [2022-12-13 15:48:49,977 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 294 flow [2022-12-13 15:48:49,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 165.2) internal successors, (826), 5 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:49,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:49,978 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:49,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:48:49,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:49,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:49,978 INFO L85 PathProgramCache]: Analyzing trace with hash 915668999, now seen corresponding path program 1 times [2022-12-13 15:48:49,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:49,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221813058] [2022-12-13 15:48:49,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:49,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:50,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:50,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221813058] [2022-12-13 15:48:50,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221813058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:50,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:50,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:48:50,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203541930] [2022-12-13 15:48:50,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:50,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:48:50,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:48:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:48:50,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 376 [2022-12-13 15:48:50,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 294 flow. Second operand has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:50,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 376 [2022-12-13 15:48:50,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:50,359 INFO L130 PetriNetUnfolder]: 40/152 cut-off events. [2022-12-13 15:48:50,359 INFO L131 PetriNetUnfolder]: For 217/217 co-relation queries the response was YES. [2022-12-13 15:48:50,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 152 events. 40/152 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 550 event pairs, 6 based on Foata normal form. 7/158 useless extension candidates. Maximal degree in co-relation 567. Up to 41 conditions per place. [2022-12-13 15:48:50,360 INFO L137 encePairwiseOnDemand]: 368/376 looper letters, 40 selfloop transitions, 13 changer transitions 2/64 dead transitions. [2022-12-13 15:48:50,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 64 transitions, 505 flow [2022-12-13 15:48:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:48:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 15:48:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2258 transitions. [2022-12-13 15:48:50,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.428951367781155 [2022-12-13 15:48:50,364 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2258 transitions. [2022-12-13 15:48:50,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2258 transitions. [2022-12-13 15:48:50,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:50,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2258 transitions. [2022-12-13 15:48:50,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 161.28571428571428) internal successors, (2258), 14 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 376.0) internal successors, (5640), 15 states have internal predecessors, (5640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,372 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 376.0) internal successors, (5640), 15 states have internal predecessors, (5640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,372 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 294 flow. Second operand 14 states and 2258 transitions. [2022-12-13 15:48:50,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 64 transitions, 505 flow [2022-12-13 15:48:50,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 477 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-12-13 15:48:50,380 INFO L231 Difference]: Finished difference. Result has 70 places, 45 transitions, 293 flow [2022-12-13 15:48:50,381 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=293, PETRI_PLACES=70, PETRI_TRANSITIONS=45} [2022-12-13 15:48:50,381 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 37 predicate places. [2022-12-13 15:48:50,381 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 45 transitions, 293 flow [2022-12-13 15:48:50,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,382 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:50,382 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:50,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:48:50,382 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:50,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:50,382 INFO L85 PathProgramCache]: Analyzing trace with hash -510302354, now seen corresponding path program 1 times [2022-12-13 15:48:50,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:50,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472249259] [2022-12-13 15:48:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:50,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:50,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:50,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472249259] [2022-12-13 15:48:50,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472249259] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:50,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:50,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:48:50,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264174217] [2022-12-13 15:48:50,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:50,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:48:50,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:50,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:48:50,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:48:50,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 376 [2022-12-13 15:48:50,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 45 transitions, 293 flow. Second operand has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:50,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 376 [2022-12-13 15:48:50,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:50,561 INFO L130 PetriNetUnfolder]: 39/152 cut-off events. [2022-12-13 15:48:50,561 INFO L131 PetriNetUnfolder]: For 206/206 co-relation queries the response was YES. [2022-12-13 15:48:50,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 152 events. 39/152 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 543 event pairs, 22 based on Foata normal form. 3/153 useless extension candidates. Maximal degree in co-relation 568. Up to 77 conditions per place. [2022-12-13 15:48:50,562 INFO L137 encePairwiseOnDemand]: 371/376 looper letters, 31 selfloop transitions, 10 changer transitions 8/55 dead transitions. [2022-12-13 15:48:50,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 55 transitions, 445 flow [2022-12-13 15:48:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:48:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:48:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 687 transitions. [2022-12-13 15:48:50,564 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.456781914893617 [2022-12-13 15:48:50,564 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 687 transitions. [2022-12-13 15:48:50,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 687 transitions. [2022-12-13 15:48:50,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:50,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 687 transitions. [2022-12-13 15:48:50,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,566 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,567 INFO L175 Difference]: Start difference. First operand has 70 places, 45 transitions, 293 flow. Second operand 4 states and 687 transitions. [2022-12-13 15:48:50,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 55 transitions, 445 flow [2022-12-13 15:48:50,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 55 transitions, 419 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-12-13 15:48:50,569 INFO L231 Difference]: Finished difference. Result has 65 places, 41 transitions, 270 flow [2022-12-13 15:48:50,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=65, PETRI_TRANSITIONS=41} [2022-12-13 15:48:50,569 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 32 predicate places. [2022-12-13 15:48:50,569 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 41 transitions, 270 flow [2022-12-13 15:48:50,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,570 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:48:50,570 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:50,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:48:50,570 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 15:48:50,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:48:50,570 INFO L85 PathProgramCache]: Analyzing trace with hash -785091154, now seen corresponding path program 1 times [2022-12-13 15:48:50,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:48:50,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20950088] [2022-12-13 15:48:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:48:50,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:48:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:48:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:48:50,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:48:50,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20950088] [2022-12-13 15:48:50,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20950088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:48:50,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:48:50,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:48:50,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142144177] [2022-12-13 15:48:50,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:48:50,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:48:50,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:48:50,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:48:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:48:50,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 376 [2022-12-13 15:48:50,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 41 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:48:50,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 376 [2022-12-13 15:48:50,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:48:50,939 INFO L130 PetriNetUnfolder]: 22/96 cut-off events. [2022-12-13 15:48:50,939 INFO L131 PetriNetUnfolder]: For 166/166 co-relation queries the response was YES. [2022-12-13 15:48:50,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 96 events. 22/96 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 269 event pairs, 4 based on Foata normal form. 15/111 useless extension candidates. Maximal degree in co-relation 355. Up to 78 conditions per place. [2022-12-13 15:48:50,940 INFO L137 encePairwiseOnDemand]: 373/376 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2022-12-13 15:48:50,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 43 transitions, 342 flow [2022-12-13 15:48:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:48:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:48:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 668 transitions. [2022-12-13 15:48:50,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4441489361702128 [2022-12-13 15:48:50,941 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 668 transitions. [2022-12-13 15:48:50,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 668 transitions. [2022-12-13 15:48:50,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:48:50,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 668 transitions. [2022-12-13 15:48:50,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,944 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,944 INFO L175 Difference]: Start difference. First operand has 65 places, 41 transitions, 270 flow. Second operand 4 states and 668 transitions. [2022-12-13 15:48:50,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 43 transitions, 342 flow [2022-12-13 15:48:50,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 297 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-13 15:48:50,945 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2022-12-13 15:48:50,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2022-12-13 15:48:50,945 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 21 predicate places. [2022-12-13 15:48:50,945 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2022-12-13 15:48:50,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:48:50,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-12-13 15:48:50,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-13 15:48:50,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-13 15:48:50,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-13 15:48:50,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-13 15:48:50,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-13 15:48:50,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-13 15:48:50,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:48:50,949 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:48:50,953 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:48:50,953 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:48:50,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:48:50 BasicIcfg [2022-12-13 15:48:50,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:48:50,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:48:50,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:48:50,955 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:48:50,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:48:43" (3/4) ... [2022-12-13 15:48:50,958 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:48:50,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 15:48:50,965 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 15:48:50,965 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 15:48:50,965 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:48:50,965 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:48:50,988 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:48:50,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:48:50,989 INFO L158 Benchmark]: Toolchain (without parser) took 8041.93ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 124.3MB in the beginning and 109.3MB in the end (delta: 15.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-12-13 15:48:50,989 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:48:50,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.84ms. Allocated memory is still 155.2MB. Free memory was 124.3MB in the beginning and 103.9MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 15:48:50,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.35ms. Allocated memory is still 155.2MB. Free memory was 103.9MB in the beginning and 101.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:48:50,990 INFO L158 Benchmark]: Boogie Preprocessor took 17.92ms. Allocated memory is still 155.2MB. Free memory was 101.7MB in the beginning and 100.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:48:50,990 INFO L158 Benchmark]: RCFGBuilder took 376.71ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 82.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 15:48:50,990 INFO L158 Benchmark]: TraceAbstraction took 7285.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 81.4MB in the beginning and 111.4MB in the end (delta: -30.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:48:50,990 INFO L158 Benchmark]: Witness Printer took 33.35ms. Allocated memory is still 186.6MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:48:50,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.84ms. Allocated memory is still 155.2MB. Free memory was 124.3MB in the beginning and 103.9MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.35ms. Allocated memory is still 155.2MB. Free memory was 103.9MB in the beginning and 101.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.92ms. Allocated memory is still 155.2MB. Free memory was 101.7MB in the beginning and 100.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.71ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 82.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7285.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 81.4MB in the beginning and 111.4MB in the end (delta: -30.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 33.35ms. Allocated memory is still 186.6MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 177 PlacesBefore, 33 PlacesAfterwards, 181 TransitionsBefore, 32 TransitionsAfterwards, 8736 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 117 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 5 ChoiceCompositions, 193 TotalNumberOfCompositions, 14475 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8623, independent: 8311, independent conditional: 0, independent unconditional: 8311, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4977, independent: 4911, independent conditional: 0, independent unconditional: 4911, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8623, independent: 3400, independent conditional: 0, independent unconditional: 3400, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 4977, unknown conditional: 0, unknown unconditional: 4977] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 255 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1052 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 756 mSDsluCounter, 348 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1897 IncrementalHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 66 mSDtfsCounter, 1897 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=8, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:48:51,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b3de80-6aaf-4c82-bdfc-f541ad39b6cc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE