./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/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_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 16:55:38,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:55:38,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:55:38,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:55:38,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:55:38,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:55:38,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:55:38,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:55:38,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:55:38,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:55:38,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:55:38,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:55:38,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:55:38,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:55:38,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:55:38,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:55:38,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:55:38,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:55:38,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:55:38,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:55:38,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:55:38,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:55:38,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:55:38,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:55:38,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:55:38,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:55:38,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:55:38,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:55:38,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:55:38,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:55:38,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:55:38,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:55:38,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:55:38,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:55:38,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:55:38,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:55:38,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:55:38,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:55:38,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:55:38,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:55:38,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:55:38,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:55:38,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:55:38,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:55:38,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:55:38,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:55:38,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:55:38,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:55:38,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:55:38,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:55:38,995 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:55:38,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:55:38,996 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:55:38,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:55:38,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:55:38,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:55:38,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:55:38,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:55:38,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:55:38,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:55:38,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:55:38,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:55:38,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:55:38,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:55:38,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:55:39,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:55:39,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:55:39,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:55:39,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:55:39,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:55:39,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:55:39,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:55:39,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:55:39,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:55:39,002 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:55:39,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:55:39,003 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_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2022-11-25 16:55:39,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:55:39,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:55:39,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:55:39,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:55:39,351 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:55:39,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-25 16:55:42,527 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:55:42,798 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:55:42,798 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-25 16:55:42,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/data/1df25fd3b/125a4205ad5a4b1d9cef4a9a5d4af4c8/FLAGf2122611f [2022-11-25 16:55:42,833 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/data/1df25fd3b/125a4205ad5a4b1d9cef4a9a5d4af4c8 [2022-11-25 16:55:42,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:55:42,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:55:42,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:55:42,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:55:42,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:55:42,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:55:42" (1/1) ... [2022-11-25 16:55:42,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d899219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:42, skipping insertion in model container [2022-11-25 16:55:42,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:55:42" (1/1) ... [2022-11-25 16:55:42,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:55:42,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:55:43,113 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_3ea749a4-7406-4dbf-8214-67a1f1b615b8/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-11-25 16:55:43,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:55:43,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:55:43,327 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_3ea749a4-7406-4dbf-8214-67a1f1b615b8/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-11-25 16:55:43,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:55:43,420 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:55:43,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43 WrapperNode [2022-11-25 16:55:43,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:55:43,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:55:43,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:55:43,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:55:43,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,470 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2022-11-25 16:55:43,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:55:43,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:55:43,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:55:43,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:55:43,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,497 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:55:43,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:55:43,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:55:43,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:55:43,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (1/1) ... [2022-11-25 16:55:43,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:55:43,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:55:43,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:55:43,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:55:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:55:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 16:55:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:55:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:55:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 16:55:43,603 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 16:55:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:55:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:55:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:55:43,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:55:43,605 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:55:43,800 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:55:43,803 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:55:44,219 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:55:44,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:55:44,241 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:55:44,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:55:44 BoogieIcfgContainer [2022-11-25 16:55:44,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:55:44,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:55:44,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:55:44,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:55:44,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:55:42" (1/3) ... [2022-11-25 16:55:44,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73803f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:55:44, skipping insertion in model container [2022-11-25 16:55:44,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:43" (2/3) ... [2022-11-25 16:55:44,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73803f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:55:44, skipping insertion in model container [2022-11-25 16:55:44,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:55:44" (3/3) ... [2022-11-25 16:55:44,261 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-25 16:55:44,271 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:55:44,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:55:44,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 16:55:44,285 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:55:44,420 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 16:55:44,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 183 transitions, 371 flow [2022-11-25 16:55:44,619 INFO L130 PetriNetUnfolder]: 8/186 cut-off events. [2022-11-25 16:55:44,621 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:55:44,633 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 163 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. [2022-11-25 16:55:44,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 183 transitions, 371 flow [2022-11-25 16:55:44,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 181 transitions, 365 flow [2022-11-25 16:55:44,644 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:55:44,680 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 181 transitions, 365 flow [2022-11-25 16:55:44,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 181 transitions, 365 flow [2022-11-25 16:55:44,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 181 transitions, 365 flow [2022-11-25 16:55:44,761 INFO L130 PetriNetUnfolder]: 8/181 cut-off events. [2022-11-25 16:55:44,761 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:55:44,770 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. [2022-11-25 16:55:44,777 INFO L119 LiptonReduction]: Number of co-enabled transitions 8736 [2022-11-25 16:55:52,419 INFO L134 LiptonReduction]: Checked pairs total: 21801 [2022-11-25 16:55:52,419 INFO L136 LiptonReduction]: Total number of compositions: 211 [2022-11-25 16:55:52,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:55:52,454 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;@4bb2f1b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:55:52,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-25 16:55:52,461 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2022-11-25 16:55:52,461 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:55:52,462 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:52,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 16:55:52,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:52,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:52,471 INFO L85 PathProgramCache]: Analyzing trace with hash 22003926, now seen corresponding path program 1 times [2022-11-25 16:55:52,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:52,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779663061] [2022-11-25 16:55:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:52,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:52,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:52,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779663061] [2022-11-25 16:55:52,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779663061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:52,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:52,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:55:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591520109] [2022-11-25 16:55:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:52,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:55:52,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:52,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:55:52,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:55:52,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 394 [2022-11-25 16:55:52,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 32 transitions, 67 flow. Second operand has 2 states, 2 states have (on average 174.0) internal successors, (348), 2 states have internal predecessors, (348), 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) [2022-11-25 16:55:52,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:52,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 394 [2022-11-25 16:55:52,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:52,878 INFO L130 PetriNetUnfolder]: 99/250 cut-off events. [2022-11-25 16:55:52,883 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:55:52,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 250 events. 99/250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1021 event pairs, 91 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 458. Up to 213 conditions per place. [2022-11-25 16:55:52,886 INFO L137 encePairwiseOnDemand]: 391/394 looper letters, 19 selfloop transitions, 0 changer transitions 4/29 dead transitions. [2022-11-25 16:55:52,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 107 flow [2022-11-25 16:55:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:55:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:55:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 370 transitions. [2022-11-25 16:55:52,912 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46954314720812185 [2022-11-25 16:55:52,913 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 370 transitions. [2022-11-25 16:55:52,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 370 transitions. [2022-11-25 16:55:52,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:52,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 370 transitions. [2022-11-25 16:55:52,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 185.0) internal successors, (370), 2 states have internal predecessors, (370), 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) [2022-11-25 16:55:52,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 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) [2022-11-25 16:55:52,938 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 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) [2022-11-25 16:55:52,942 INFO L175 Difference]: Start difference. First operand has 32 places, 32 transitions, 67 flow. Second operand 2 states and 370 transitions. [2022-11-25 16:55:52,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 107 flow [2022-11-25 16:55:52,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:55:52,949 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 52 flow [2022-11-25 16:55:52,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2022-11-25 16:55:52,959 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2022-11-25 16:55:52,960 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 52 flow [2022-11-25 16:55:52,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.0) internal successors, (348), 2 states have internal predecessors, (348), 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) [2022-11-25 16:55:52,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:52,961 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 16:55:52,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:55:52,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:52,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:52,963 INFO L85 PathProgramCache]: Analyzing trace with hash -329430081, now seen corresponding path program 1 times [2022-11-25 16:55:52,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:52,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422974416] [2022-11-25 16:55:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:52,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:53,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:53,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422974416] [2022-11-25 16:55:53,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422974416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:53,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:53,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:55:53,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038798640] [2022-11-25 16:55:53,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:53,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:55:53,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:53,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:55:53,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:55:53,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 394 [2022-11-25 16:55:53,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 52 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) [2022-11-25 16:55:53,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:53,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 394 [2022-11-25 16:55:53,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:53,464 INFO L130 PetriNetUnfolder]: 73/218 cut-off events. [2022-11-25 16:55:53,464 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:55:53,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 218 events. 73/218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 847 event pairs, 7 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 386. Up to 105 conditions per place. [2022-11-25 16:55:53,466 INFO L137 encePairwiseOnDemand]: 389/394 looper letters, 33 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2022-11-25 16:55:53,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 44 transitions, 166 flow [2022-11-25 16:55:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:55:53,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:55:53,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 865 transitions. [2022-11-25 16:55:53,470 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43908629441624364 [2022-11-25 16:55:53,470 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 865 transitions. [2022-11-25 16:55:53,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 865 transitions. [2022-11-25 16:55:53,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:53,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 865 transitions. [2022-11-25 16:55:53,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2022-11-25 16:55:53,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 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) [2022-11-25 16:55:53,481 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 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) [2022-11-25 16:55:53,482 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 52 flow. Second operand 5 states and 865 transitions. [2022-11-25 16:55:53,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 44 transitions, 166 flow [2022-11-25 16:55:53,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:55:53,484 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 83 flow [2022-11-25 16:55:53,484 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2022-11-25 16:55:53,485 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2022-11-25 16:55:53,485 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 83 flow [2022-11-25 16:55:53,486 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) [2022-11-25 16:55:53,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:53,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:53,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:55:53,487 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1245238523, now seen corresponding path program 1 times [2022-11-25 16:55:53,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:53,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566191790] [2022-11-25 16:55:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:53,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:53,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566191790] [2022-11-25 16:55:53,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566191790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:53,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:53,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:55:53,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349659678] [2022-11-25 16:55:53,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:53,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:53,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:53,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:53,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:53,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 394 [2022-11-25 16:55:53,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-11-25 16:55:53,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:53,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 394 [2022-11-25 16:55:53,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:54,127 INFO L130 PetriNetUnfolder]: 80/236 cut-off events. [2022-11-25 16:55:54,127 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-25 16:55:54,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 236 events. 80/236 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 999 event pairs, 19 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 490. Up to 81 conditions per place. [2022-11-25 16:55:54,130 INFO L137 encePairwiseOnDemand]: 385/394 looper letters, 39 selfloop transitions, 19 changer transitions 0/64 dead transitions. [2022-11-25 16:55:54,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 64 transitions, 287 flow [2022-11-25 16:55:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:55:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:55:54,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1861 transitions. [2022-11-25 16:55:54,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3936125211505922 [2022-11-25 16:55:54,137 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1861 transitions. [2022-11-25 16:55:54,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1861 transitions. [2022-11-25 16:55:54,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:54,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1861 transitions. [2022-11-25 16:55:54,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 155.08333333333334) internal successors, (1861), 12 states have internal predecessors, (1861), 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) [2022-11-25 16:55:54,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 394.0) internal successors, (5122), 13 states have internal predecessors, (5122), 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) [2022-11-25 16:55:54,157 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 394.0) internal successors, (5122), 13 states have internal predecessors, (5122), 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) [2022-11-25 16:55:54,157 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 83 flow. Second operand 12 states and 1861 transitions. [2022-11-25 16:55:54,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 64 transitions, 287 flow [2022-11-25 16:55:54,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 64 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:55:54,162 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 183 flow [2022-11-25 16:55:54,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=183, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2022-11-25 16:55:54,164 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2022-11-25 16:55:54,164 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 183 flow [2022-11-25 16:55:54,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-11-25 16:55:54,166 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:54,166 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:54,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:55:54,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:54,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:54,169 INFO L85 PathProgramCache]: Analyzing trace with hash -750302542, now seen corresponding path program 1 times [2022-11-25 16:55:54,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:54,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179177506] [2022-11-25 16:55:54,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:54,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:54,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:54,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179177506] [2022-11-25 16:55:54,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179177506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:54,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:54,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:55:54,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962453947] [2022-11-25 16:55:54,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:54,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:55:54,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:55:54,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:55:54,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 394 [2022-11-25 16:55:54,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 183 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) [2022-11-25 16:55:54,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:54,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 394 [2022-11-25 16:55:54,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:54,465 INFO L130 PetriNetUnfolder]: 84/240 cut-off events. [2022-11-25 16:55:54,465 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-25 16:55:54,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 240 events. 84/240 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 976 event pairs, 26 based on Foata normal form. 15/255 useless extension candidates. Maximal degree in co-relation 615. Up to 125 conditions per place. [2022-11-25 16:55:54,467 INFO L137 encePairwiseOnDemand]: 386/394 looper letters, 40 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2022-11-25 16:55:54,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 51 transitions, 310 flow [2022-11-25 16:55:54,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:55:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:55:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-11-25 16:55:54,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4416243654822335 [2022-11-25 16:55:54,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-11-25 16:55:54,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-11-25 16:55:54,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:54,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-11-25 16:55:54,478 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) [2022-11-25 16:55:54,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 394.0) internal successors, (1576), 4 states have internal predecessors, (1576), 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) [2022-11-25 16:55:54,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 394.0) internal successors, (1576), 4 states have internal predecessors, (1576), 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) [2022-11-25 16:55:54,488 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 183 flow. Second operand 3 states and 522 transitions. [2022-11-25 16:55:54,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 51 transitions, 310 flow [2022-11-25 16:55:54,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 282 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-11-25 16:55:54,497 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 175 flow [2022-11-25 16:55:54,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=133, 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=175, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2022-11-25 16:55:54,499 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2022-11-25 16:55:54,499 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 175 flow [2022-11-25 16:55:54,501 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) [2022-11-25 16:55:54,501 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:54,501 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:54,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:55:54,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:54,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1621486026, now seen corresponding path program 1 times [2022-11-25 16:55:54,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:54,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605570091] [2022-11-25 16:55:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:54,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:54,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:54,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605570091] [2022-11-25 16:55:54,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605570091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:54,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:54,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:55:54,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410023100] [2022-11-25 16:55:54,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:54,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:55:54,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:54,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:55:54,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:55:54,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 394 [2022-11-25 16:55:54,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 165.5) internal successors, (662), 4 states have internal predecessors, (662), 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) [2022-11-25 16:55:54,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:54,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 394 [2022-11-25 16:55:54,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:54,902 INFO L130 PetriNetUnfolder]: 57/195 cut-off events. [2022-11-25 16:55:54,902 INFO L131 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2022-11-25 16:55:54,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 195 events. 57/195 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 831 event pairs, 32 based on Foata normal form. 14/203 useless extension candidates. Maximal degree in co-relation 549. Up to 104 conditions per place. [2022-11-25 16:55:54,904 INFO L137 encePairwiseOnDemand]: 389/394 looper letters, 40 selfloop transitions, 6 changer transitions 1/53 dead transitions. [2022-11-25 16:55:54,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 315 flow [2022-11-25 16:55:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:55:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 16:55:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 689 transitions. [2022-11-25 16:55:54,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43718274111675126 [2022-11-25 16:55:54,908 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 689 transitions. [2022-11-25 16:55:54,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 689 transitions. [2022-11-25 16:55:54,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:54,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 689 transitions. [2022-11-25 16:55:54,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 172.25) internal successors, (689), 4 states have internal predecessors, (689), 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) [2022-11-25 16:55:54,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 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) [2022-11-25 16:55:54,917 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 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) [2022-11-25 16:55:54,918 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 175 flow. Second operand 4 states and 689 transitions. [2022-11-25 16:55:54,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 315 flow [2022-11-25 16:55:54,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 53 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:55:54,925 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 197 flow [2022-11-25 16:55:54,926 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2022-11-25 16:55:54,928 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2022-11-25 16:55:54,929 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 197 flow [2022-11-25 16:55:54,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 165.5) internal successors, (662), 4 states have internal predecessors, (662), 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) [2022-11-25 16:55:54,929 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:54,930 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:54,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:55:54,930 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:54,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2054518687, now seen corresponding path program 1 times [2022-11-25 16:55:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:54,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358986878] [2022-11-25 16:55:54,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:55,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:55,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:55,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358986878] [2022-11-25 16:55:55,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358986878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:55,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:55,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:55:55,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036033982] [2022-11-25 16:55:55,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:55,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:55,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:55,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:55,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:55,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 394 [2022-11-25 16:55:55,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 197 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) [2022-11-25 16:55:55,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:55,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 394 [2022-11-25 16:55:55,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:55,365 INFO L130 PetriNetUnfolder]: 56/200 cut-off events. [2022-11-25 16:55:55,366 INFO L131 PetriNetUnfolder]: For 127/129 co-relation queries the response was YES. [2022-11-25 16:55:55,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 200 events. 56/200 cut-off events. For 127/129 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 848 event pairs, 29 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 587. Up to 114 conditions per place. [2022-11-25 16:55:55,368 INFO L137 encePairwiseOnDemand]: 389/394 looper letters, 38 selfloop transitions, 9 changer transitions 0/55 dead transitions. [2022-11-25 16:55:55,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 55 transitions, 351 flow [2022-11-25 16:55:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:55:55,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:55:55,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 849 transitions. [2022-11-25 16:55:55,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4309644670050761 [2022-11-25 16:55:55,371 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 849 transitions. [2022-11-25 16:55:55,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 849 transitions. [2022-11-25 16:55:55,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:55,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 849 transitions. [2022-11-25 16:55:55,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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) [2022-11-25 16:55:55,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 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) [2022-11-25 16:55:55,380 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 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) [2022-11-25 16:55:55,380 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 197 flow. Second operand 5 states and 849 transitions. [2022-11-25 16:55:55,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 55 transitions, 351 flow [2022-11-25 16:55:55,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 55 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 16:55:55,383 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 223 flow [2022-11-25 16:55:55,384 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2022-11-25 16:55:55,384 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 22 predicate places. [2022-11-25 16:55:55,385 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 223 flow [2022-11-25 16:55:55,385 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) [2022-11-25 16:55:55,385 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:55,386 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:55,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:55:55,386 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1029896240, now seen corresponding path program 1 times [2022-11-25 16:55:55,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:55,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469853996] [2022-11-25 16:55:55,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:55,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:55,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:55,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469853996] [2022-11-25 16:55:55,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469853996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:55,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:55,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:55:55,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539720009] [2022-11-25 16:55:55,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:55,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:55,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:55,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:55,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:55,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 394 [2022-11-25 16:55:55,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 223 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) [2022-11-25 16:55:55,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:55,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 394 [2022-11-25 16:55:55,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:55,749 INFO L130 PetriNetUnfolder]: 53/191 cut-off events. [2022-11-25 16:55:55,749 INFO L131 PetriNetUnfolder]: For 121/123 co-relation queries the response was YES. [2022-11-25 16:55:55,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 191 events. 53/191 cut-off events. For 121/123 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 803 event pairs, 29 based on Foata normal form. 4/192 useless extension candidates. Maximal degree in co-relation 586. Up to 102 conditions per place. [2022-11-25 16:55:55,751 INFO L137 encePairwiseOnDemand]: 387/394 looper letters, 38 selfloop transitions, 10 changer transitions 1/55 dead transitions. [2022-11-25 16:55:55,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 55 transitions, 363 flow [2022-11-25 16:55:55,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:55:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 16:55:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1186 transitions. [2022-11-25 16:55:55,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43002175489485134 [2022-11-25 16:55:55,756 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1186 transitions. [2022-11-25 16:55:55,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1186 transitions. [2022-11-25 16:55:55,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:55,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1186 transitions. [2022-11-25 16:55:55,760 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) [2022-11-25 16:55:55,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 394.0) internal successors, (3152), 8 states have internal predecessors, (3152), 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) [2022-11-25 16:55:55,767 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 394.0) internal successors, (3152), 8 states have internal predecessors, (3152), 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) [2022-11-25 16:55:55,767 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 223 flow. Second operand 7 states and 1186 transitions. [2022-11-25 16:55:55,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 55 transitions, 363 flow [2022-11-25 16:55:55,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 55 transitions, 348 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 16:55:55,771 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 249 flow [2022-11-25 16:55:55,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2022-11-25 16:55:55,773 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 28 predicate places. [2022-11-25 16:55:55,773 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 249 flow [2022-11-25 16:55:55,774 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) [2022-11-25 16:55:55,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:55,774 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:55,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:55:55,774 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:55,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1292531493, now seen corresponding path program 1 times [2022-11-25 16:55:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:55,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577509830] [2022-11-25 16:55:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:55,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:55,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577509830] [2022-11-25 16:55:55,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577509830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:55,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:55,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:55:55,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354649653] [2022-11-25 16:55:55,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:55,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:55,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:55,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:55,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:56,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 394 [2022-11-25 16:55:56,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 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) [2022-11-25 16:55:56,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:56,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 394 [2022-11-25 16:55:56,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:56,296 INFO L130 PetriNetUnfolder]: 56/189 cut-off events. [2022-11-25 16:55:56,296 INFO L131 PetriNetUnfolder]: For 234/234 co-relation queries the response was YES. [2022-11-25 16:55:56,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 189 events. 56/189 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 763 event pairs, 20 based on Foata normal form. 4/192 useless extension candidates. Maximal degree in co-relation 644. Up to 90 conditions per place. [2022-11-25 16:55:56,298 INFO L137 encePairwiseOnDemand]: 389/394 looper letters, 38 selfloop transitions, 9 changer transitions 3/55 dead transitions. [2022-11-25 16:55:56,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 55 transitions, 409 flow [2022-11-25 16:55:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:55:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 16:55:56,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 672 transitions. [2022-11-25 16:55:56,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4263959390862944 [2022-11-25 16:55:56,303 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 672 transitions. [2022-11-25 16:55:56,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 672 transitions. [2022-11-25 16:55:56,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:56,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 672 transitions. [2022-11-25 16:55:56,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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) [2022-11-25 16:55:56,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 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) [2022-11-25 16:55:56,310 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 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) [2022-11-25 16:55:56,310 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 249 flow. Second operand 4 states and 672 transitions. [2022-11-25 16:55:56,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 55 transitions, 409 flow [2022-11-25 16:55:56,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 401 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 16:55:56,316 INFO L231 Difference]: Finished difference. Result has 61 places, 42 transitions, 250 flow [2022-11-25 16:55:56,317 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=61, PETRI_TRANSITIONS=42} [2022-11-25 16:55:56,319 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 29 predicate places. [2022-11-25 16:55:56,319 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 250 flow [2022-11-25 16:55:56,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 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) [2022-11-25 16:55:56,320 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:56,321 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:56,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:55:56,321 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1641174537, now seen corresponding path program 1 times [2022-11-25 16:55:56,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:56,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905662432] [2022-11-25 16:55:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:56,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:56,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:56,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905662432] [2022-11-25 16:55:56,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905662432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:56,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:56,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:55:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684317340] [2022-11-25 16:55:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:56,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:56,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:56,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:56,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 394 [2022-11-25 16:55:56,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 250 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) [2022-11-25 16:55:56,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:56,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 394 [2022-11-25 16:55:56,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:56,748 INFO L130 PetriNetUnfolder]: 43/163 cut-off events. [2022-11-25 16:55:56,749 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2022-11-25 16:55:56,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 163 events. 43/163 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 616 event pairs, 9 based on Foata normal form. 6/168 useless extension candidates. Maximal degree in co-relation 563. Up to 57 conditions per place. [2022-11-25 16:55:56,751 INFO L137 encePairwiseOnDemand]: 388/394 looper letters, 36 selfloop transitions, 8 changer transitions 2/55 dead transitions. [2022-11-25 16:55:56,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 55 transitions, 404 flow [2022-11-25 16:55:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:55:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:55:56,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1342 transitions. [2022-11-25 16:55:56,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42576142131979694 [2022-11-25 16:55:56,756 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1342 transitions. [2022-11-25 16:55:56,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1342 transitions. [2022-11-25 16:55:56,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:56,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1342 transitions. [2022-11-25 16:55:56,762 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) [2022-11-25 16:55:56,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 394.0) internal successors, (3546), 9 states have internal predecessors, (3546), 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) [2022-11-25 16:55:56,770 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 394.0) internal successors, (3546), 9 states have internal predecessors, (3546), 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) [2022-11-25 16:55:56,770 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 250 flow. Second operand 8 states and 1342 transitions. [2022-11-25 16:55:56,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 55 transitions, 404 flow [2022-11-25 16:55:56,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 16:55:56,774 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 245 flow [2022-11-25 16:55:56,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=245, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2022-11-25 16:55:56,775 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 30 predicate places. [2022-11-25 16:55:56,775 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 245 flow [2022-11-25 16:55:56,776 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) [2022-11-25 16:55:56,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:56,776 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:56,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:55:56,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-25 16:55:56,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:56,777 INFO L85 PathProgramCache]: Analyzing trace with hash -729014620, now seen corresponding path program 1 times [2022-11-25 16:55:56,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:56,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279758510] [2022-11-25 16:55:56,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:56,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:56,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:56,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279758510] [2022-11-25 16:55:56,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279758510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:56,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:56,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:55:56,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313076512] [2022-11-25 16:55:56,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:56,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:55:56,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:56,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:55:56,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:55:57,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 394 [2022-11-25 16:55:57,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 245 flow. Second operand has 7 states, 7 states have (on average 150.85714285714286) internal successors, (1056), 7 states have internal predecessors, (1056), 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) [2022-11-25 16:55:57,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:57,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 394 [2022-11-25 16:55:57,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:57,499 INFO L130 PetriNetUnfolder]: 39/153 cut-off events. [2022-11-25 16:55:57,499 INFO L131 PetriNetUnfolder]: For 206/206 co-relation queries the response was YES. [2022-11-25 16:55:57,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 153 events. 39/153 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 553 event pairs, 7 based on Foata normal form. 6/158 useless extension candidates. Maximal degree in co-relation 531. Up to 42 conditions per place. [2022-11-25 16:55:57,500 INFO L137 encePairwiseOnDemand]: 385/394 looper letters, 27 selfloop transitions, 15 changer transitions 14/65 dead transitions. [2022-11-25 16:55:57,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 65 transitions, 467 flow [2022-11-25 16:55:57,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:55:57,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:55:57,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2282 transitions. [2022-11-25 16:55:57,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38612521150592216 [2022-11-25 16:55:57,508 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2282 transitions. [2022-11-25 16:55:57,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2282 transitions. [2022-11-25 16:55:57,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:57,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2282 transitions. [2022-11-25 16:55:57,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 152.13333333333333) internal successors, (2282), 15 states have internal predecessors, (2282), 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) [2022-11-25 16:55:57,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 394.0) internal successors, (6304), 16 states have internal predecessors, (6304), 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) [2022-11-25 16:55:57,527 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 394.0) internal successors, (6304), 16 states have internal predecessors, (6304), 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) [2022-11-25 16:55:57,527 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 245 flow. Second operand 15 states and 2282 transitions. [2022-11-25 16:55:57,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 65 transitions, 467 flow [2022-11-25 16:55:57,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 65 transitions, 439 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-25 16:55:57,531 INFO L231 Difference]: Finished difference. Result has 67 places, 39 transitions, 238 flow [2022-11-25 16:55:57,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=238, PETRI_PLACES=67, PETRI_TRANSITIONS=39} [2022-11-25 16:55:57,532 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 35 predicate places. [2022-11-25 16:55:57,532 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 39 transitions, 238 flow [2022-11-25 16:55:57,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 150.85714285714286) internal successors, (1056), 7 states have internal predecessors, (1056), 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) [2022-11-25 16:55:57,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:57,533 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] [2022-11-25 16:55:57,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 16:55:57,534 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)] === [2022-11-25 16:55:57,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:57,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1744632934, now seen corresponding path program 1 times [2022-11-25 16:55:57,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:57,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507708441] [2022-11-25 16:55:57,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:57,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:57,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:57,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507708441] [2022-11-25 16:55:57,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507708441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:57,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:57,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:55:57,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543964051] [2022-11-25 16:55:57,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:57,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:57,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:57,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:57,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:57,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 394 [2022-11-25 16:55:58,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 39 transitions, 238 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) [2022-11-25 16:55:58,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:58,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 394 [2022-11-25 16:55:58,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:58,073 INFO L130 PetriNetUnfolder]: 22/95 cut-off events. [2022-11-25 16:55:58,074 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-11-25 16:55:58,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 95 events. 22/95 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 9 based on Foata normal form. 15/110 useless extension candidates. Maximal degree in co-relation 345. Up to 78 conditions per place. [2022-11-25 16:55:58,074 INFO L137 encePairwiseOnDemand]: 391/394 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2022-11-25 16:55:58,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 42 transitions, 318 flow [2022-11-25 16:55:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:55:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 16:55:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 668 transitions. [2022-11-25 16:55:58,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42385786802030456 [2022-11-25 16:55:58,078 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 668 transitions. [2022-11-25 16:55:58,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 668 transitions. [2022-11-25 16:55:58,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:58,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 668 transitions. [2022-11-25 16:55:58,080 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) [2022-11-25 16:55:58,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 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) [2022-11-25 16:55:58,084 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 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) [2022-11-25 16:55:58,085 INFO L175 Difference]: Start difference. First operand has 67 places, 39 transitions, 238 flow. Second operand 4 states and 668 transitions. [2022-11-25 16:55:58,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 42 transitions, 318 flow [2022-11-25 16:55:58,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 42 transitions, 287 flow, removed 2 selfloop flow, removed 9 redundant places. [2022-11-25 16:55:58,087 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2022-11-25 16:55:58,087 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2022-11-25 16:55:58,088 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 24 predicate places. [2022-11-25 16:55:58,088 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2022-11-25 16:55:58,088 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) [2022-11-25 16:55:58,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-25 16:55:58,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-25 16:55:58,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-11-25 16:55:58,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-11-25 16:55:58,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-11-25 16:55:58,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-11-25 16:55:58,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-25 16:55:58,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:55:58,094 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:58,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:55:58,099 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:55:58,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:55:58 BasicIcfg [2022-11-25 16:55:58,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:55:58,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:55:58,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:55:58,104 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:55:58,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:55:44" (3/4) ... [2022-11-25 16:55:58,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:55:58,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 16:55:58,119 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 16:55:58,120 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 16:55:58,120 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 16:55:58,120 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:55:58,158 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:55:58,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:55:58,159 INFO L158 Benchmark]: Toolchain (without parser) took 15321.49ms. Allocated memory was 174.1MB in the beginning and 232.8MB in the end (delta: 58.7MB). Free memory was 127.7MB in the beginning and 147.8MB in the end (delta: -20.1MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2022-11-25 16:55:58,160 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 90.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:55:58,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.58ms. Allocated memory is still 174.1MB. Free memory was 127.7MB in the beginning and 107.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 16:55:58,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.52ms. Allocated memory is still 174.1MB. Free memory was 107.6MB in the beginning and 104.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:55:58,161 INFO L158 Benchmark]: Boogie Preprocessor took 30.76ms. Allocated memory is still 174.1MB. Free memory was 104.6MB in the beginning and 103.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:55:58,161 INFO L158 Benchmark]: RCFGBuilder took 744.11ms. Allocated memory is still 174.1MB. Free memory was 103.4MB in the beginning and 85.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 16:55:58,162 INFO L158 Benchmark]: TraceAbstraction took 13853.95ms. Allocated memory was 174.1MB in the beginning and 232.8MB in the end (delta: 58.7MB). Free memory was 84.5MB in the beginning and 150.9MB in the end (delta: -66.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:55:58,162 INFO L158 Benchmark]: Witness Printer took 55.16ms. Allocated memory is still 232.8MB. Free memory was 150.9MB in the beginning and 147.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:55:58,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 90.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.58ms. Allocated memory is still 174.1MB. Free memory was 127.7MB in the beginning and 107.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.52ms. Allocated memory is still 174.1MB. Free memory was 107.6MB in the beginning and 104.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.76ms. Allocated memory is still 174.1MB. Free memory was 104.6MB in the beginning and 103.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 744.11ms. Allocated memory is still 174.1MB. Free memory was 103.4MB in the beginning and 85.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13853.95ms. Allocated memory was 174.1MB in the beginning and 232.8MB in the end (delta: 58.7MB). Free memory was 84.5MB in the beginning and 150.9MB in the end (delta: -66.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.16ms. Allocated memory is still 232.8MB. Free memory was 150.9MB in the beginning and 147.8MB in the end (delta: 3.1MB). 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: 7.7s, 177 PlacesBefore, 32 PlacesAfterwards, 181 TransitionsBefore, 32 TransitionsAfterwards, 8736 CoEnabledTransitionPairs, 17 FixpointIterations, 43 TrivialSequentialCompositions, 122 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 42 ConcurrentYvCompositions, 4 ChoiceCompositions, 211 TotalNumberOfCompositions, 21801 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11373, independent: 10633, independent conditional: 0, independent unconditional: 10633, dependent: 740, dependent conditional: 0, dependent unconditional: 740, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6680, independent: 6579, independent conditional: 0, independent unconditional: 6579, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6680, independent: 6444, independent conditional: 0, independent unconditional: 6444, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 236, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 467, independent: 176, independent conditional: 0, independent unconditional: 176, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11373, independent: 4054, independent conditional: 0, independent unconditional: 4054, dependent: 639, dependent conditional: 0, dependent unconditional: 639, unknown: 6680, unknown conditional: 0, unknown unconditional: 6680] , Statistics on independence cache: Total cache size (in pairs): 231, Positive cache size: 195, Positive conditional cache size: 0, Positive unconditional cache size: 195, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, 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: 13.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1044 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 727 mSDsluCounter, 487 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 377 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1786 IncrementalHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 110 mSDtfsCounter, 1786 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=8, InterpolantAutomatonStates: 69, 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 681 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! [2022-11-25 16:55:58,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea749a4-7406-4dbf-8214-67a1f1b615b8/bin/uautomizer-ZsLfNo2U6R/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