./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS --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 a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b --- 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-4e7fbc6 [2022-11-23 03:37:31,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:37:31,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:37:31,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:37:31,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:37:31,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:37:31,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:37:31,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:37:31,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:37:31,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:37:31,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:37:31,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:37:31,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:37:31,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:37:31,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:37:31,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:37:31,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:37:31,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:37:31,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:37:31,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:37:31,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:37:31,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:37:31,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:37:31,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:37:31,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:37:31,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:37:31,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:37:31,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:37:31,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:37:31,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:37:31,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:37:31,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:37:32,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:37:32,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:37:32,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:37:32,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:37:32,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:37:32,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:37:32,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:37:32,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:37:32,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:37:32,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:37:32,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:37:32,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:37:32,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:37:32,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:37:32,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:37:32,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:37:32,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:37:32,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:37:32,060 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:37:32,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:37:32,061 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:37:32,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:37:32,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:37:32,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:37:32,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:37:32,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:37:32,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:37:32,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:37:32,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:37:32,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:37:32,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:37:32,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:37:32,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:37:32,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:37:32,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:37:32,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:37:32,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:37:32,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:37:32,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:37:32,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:37:32,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:37:32,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:37:32,065 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:37:32,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:37:32,065 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_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b [2022-11-23 03:37:32,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:37:32,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:37:32,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:37:32,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:37:32,428 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:37:32,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2022-11-23 03:37:35,502 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:37:35,748 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:37:35,749 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2022-11-23 03:37:35,756 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/data/ec22b3cd5/9f0af4fbb0e14e56b2226a67a802bd76/FLAGa2f83d1c6 [2022-11-23 03:37:35,772 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/data/ec22b3cd5/9f0af4fbb0e14e56b2226a67a802bd76 [2022-11-23 03:37:35,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:37:35,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:37:35,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:37:35,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:37:35,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:37:35,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:35" (1/1) ... [2022-11-23 03:37:35,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6f560b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:35, skipping insertion in model container [2022-11-23 03:37:35,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:35" (1/1) ... [2022-11-23 03:37:35,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:37:35,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:37:36,063 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_ec9626d9-3bdc-451e-afef-96aea68494b4/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2022-11-23 03:37:36,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:37:36,088 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:37:36,131 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_ec9626d9-3bdc-451e-afef-96aea68494b4/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2022-11-23 03:37:36,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:37:36,158 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:37:36,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36 WrapperNode [2022-11-23 03:37:36,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:37:36,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:37:36,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:37:36,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:37:36,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,209 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 176 [2022-11-23 03:37:36,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:37:36,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:37:36,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:37:36,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:37:36,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,234 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:37:36,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:37:36,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:37:36,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:37:36,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (1/1) ... [2022-11-23 03:37:36,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:37:36,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:37:36,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:37:36,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:37:36,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:37:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 03:37:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 03:37:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 03:37:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 03:37:36,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 03:37:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 03:37:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:37:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:37:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:37:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:37:36,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:37:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:37:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:37:36,335 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:37:36,490 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:37:36,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:37:36,932 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:37:36,944 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:37:36,944 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:37:36,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:36 BoogieIcfgContainer [2022-11-23 03:37:36,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:37:36,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:37:36,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:37:36,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:37:36,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:37:35" (1/3) ... [2022-11-23 03:37:36,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13947669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:37:36, skipping insertion in model container [2022-11-23 03:37:36,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:36" (2/3) ... [2022-11-23 03:37:36,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13947669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:37:36, skipping insertion in model container [2022-11-23 03:37:36,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:36" (3/3) ... [2022-11-23 03:37:36,964 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2022-11-23 03:37:36,980 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:37:36,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:37:36,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:37:36,990 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:37:37,123 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 03:37:37,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 232 transitions, 488 flow [2022-11-23 03:37:37,361 INFO L130 PetriNetUnfolder]: 17/229 cut-off events. [2022-11-23 03:37:37,362 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:37:37,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 229 events. 17/229 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 490 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2022-11-23 03:37:37,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 232 transitions, 488 flow [2022-11-23 03:37:37,387 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 218 transitions, 454 flow [2022-11-23 03:37:37,391 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:37:37,427 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 218 transitions, 454 flow [2022-11-23 03:37:37,430 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 218 transitions, 454 flow [2022-11-23 03:37:37,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 218 transitions, 454 flow [2022-11-23 03:37:37,505 INFO L130 PetriNetUnfolder]: 17/218 cut-off events. [2022-11-23 03:37:37,506 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:37:37,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 218 events. 17/218 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 489 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2022-11-23 03:37:37,515 INFO L119 LiptonReduction]: Number of co-enabled transitions 15390 [2022-11-23 03:37:46,699 INFO L134 LiptonReduction]: Checked pairs total: 13766 [2022-11-23 03:37:46,699 INFO L136 LiptonReduction]: Total number of compositions: 262 [2022-11-23 03:37:46,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:37:46,721 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;@2c2e769a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:37:46,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 03:37:46,729 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-11-23 03:37:46,729 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:37:46,729 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:37:46,730 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:37:46,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 03:37:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:46,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1332403782, now seen corresponding path program 1 times [2022-11-23 03:37:46,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:46,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130097652] [2022-11-23 03:37:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:46,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:50,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:50,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130097652] [2022-11-23 03:37:50,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130097652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:37:50,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:37:50,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:37:50,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943477635] [2022-11-23 03:37:50,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:37:50,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:37:50,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:37:50,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:37:50,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:37:51,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 494 [2022-11-23 03:37:51,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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) [2022-11-23 03:37:51,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:37:51,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 494 [2022-11-23 03:37:51,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:37:51,789 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2022-11-23 03:37:51,790 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-23 03:37:51,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 280 event pairs, 2 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 38 conditions per place. [2022-11-23 03:37:51,792 INFO L137 encePairwiseOnDemand]: 489/494 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2022-11-23 03:37:51,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2022-11-23 03:37:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:37:51,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:37:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1234 transitions. [2022-11-23 03:37:51,818 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41632928475033737 [2022-11-23 03:37:51,819 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1234 transitions. [2022-11-23 03:37:51,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1234 transitions. [2022-11-23 03:37:51,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:37:51,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1234 transitions. [2022-11-23 03:37:51,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 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) [2022-11-23 03:37:51,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:37:51,848 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:37:51,850 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 1234 transitions. [2022-11-23 03:37:51,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 228 flow [2022-11-23 03:37:51,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 45 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-23 03:37:51,856 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 71 flow [2022-11-23 03:37:51,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=71, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2022-11-23 03:37:51,862 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2022-11-23 03:37:51,862 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 71 flow [2022-11-23 03:37:51,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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) [2022-11-23 03:37:51,864 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:37:51,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:37:51,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:37:51,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 03:37:51,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:51,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1250740564, now seen corresponding path program 2 times [2022-11-23 03:37:51,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:51,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2780407] [2022-11-23 03:37:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:51,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:53,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:53,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2780407] [2022-11-23 03:37:53,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2780407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:37:53,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:37:53,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:37:53,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110019664] [2022-11-23 03:37:53,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:37:53,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:37:53,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:37:53,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:37:53,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:37:54,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2022-11-23 03:37:54,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 200.2) internal successors, (1001), 5 states have internal predecessors, (1001), 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) [2022-11-23 03:37:54,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:37:54,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2022-11-23 03:37:54,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:37:54,622 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2022-11-23 03:37:54,623 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-11-23 03:37:54,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 116 events. 38/116 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 406 event pairs, 6 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 309. Up to 58 conditions per place. [2022-11-23 03:37:54,625 INFO L137 encePairwiseOnDemand]: 489/494 looper letters, 30 selfloop transitions, 7 changer transitions 9/46 dead transitions. [2022-11-23 03:37:54,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 46 transitions, 235 flow [2022-11-23 03:37:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:37:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:37:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1228 transitions. [2022-11-23 03:37:54,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4143049932523617 [2022-11-23 03:37:54,630 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1228 transitions. [2022-11-23 03:37:54,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1228 transitions. [2022-11-23 03:37:54,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:37:54,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1228 transitions. [2022-11-23 03:37:54,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.66666666666666) internal successors, (1228), 6 states have internal predecessors, (1228), 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) [2022-11-23 03:37:54,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:37:54,643 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:37:54,644 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 71 flow. Second operand 6 states and 1228 transitions. [2022-11-23 03:37:54,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 46 transitions, 235 flow [2022-11-23 03:37:54,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 46 transitions, 231 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-23 03:37:54,647 INFO L231 Difference]: Finished difference. Result has 34 places, 21 transitions, 100 flow [2022-11-23 03:37:54,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2022-11-23 03:37:54,648 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2022-11-23 03:37:54,649 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 100 flow [2022-11-23 03:37:54,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.2) internal successors, (1001), 5 states have internal predecessors, (1001), 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) [2022-11-23 03:37:54,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:37:54,650 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:37:54,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:37:54,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 03:37:54,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1541340618, now seen corresponding path program 3 times [2022-11-23 03:37:54,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:54,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962965730] [2022-11-23 03:37:54,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:54,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:56,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:56,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962965730] [2022-11-23 03:37:56,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962965730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:37:56,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:37:56,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:37:56,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836823580] [2022-11-23 03:37:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:37:56,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:37:56,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:37:56,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:37:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:37:56,973 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2022-11-23 03:37:56,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 200.2) internal successors, (1001), 5 states have internal predecessors, (1001), 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) [2022-11-23 03:37:56,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:37:56,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2022-11-23 03:37:56,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:37:57,433 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2022-11-23 03:37:57,433 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-11-23 03:37:57,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 103 events. 33/103 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 338 event pairs, 2 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 334. Up to 51 conditions per place. [2022-11-23 03:37:57,434 INFO L137 encePairwiseOnDemand]: 489/494 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2022-11-23 03:37:57,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 257 flow [2022-11-23 03:37:57,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:37:57,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:37:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1226 transitions. [2022-11-23 03:37:57,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4136302294197031 [2022-11-23 03:37:57,439 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1226 transitions. [2022-11-23 03:37:57,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1226 transitions. [2022-11-23 03:37:57,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:37:57,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1226 transitions. [2022-11-23 03:37:57,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 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) [2022-11-23 03:37:57,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:37:57,452 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:37:57,452 INFO L175 Difference]: Start difference. First operand has 34 places, 21 transitions, 100 flow. Second operand 6 states and 1226 transitions. [2022-11-23 03:37:57,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 257 flow [2022-11-23 03:37:57,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 243 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-23 03:37:57,456 INFO L231 Difference]: Finished difference. Result has 38 places, 20 transitions, 100 flow [2022-11-23 03:37:57,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=20} [2022-11-23 03:37:57,457 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2022-11-23 03:37:57,457 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 100 flow [2022-11-23 03:37:57,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.2) internal successors, (1001), 5 states have internal predecessors, (1001), 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) [2022-11-23 03:37:57,458 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:37:57,458 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:37:57,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:37:57,458 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 03:37:57,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:57,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1822195370, now seen corresponding path program 4 times [2022-11-23 03:37:57,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:57,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385461022] [2022-11-23 03:37:57,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:57,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:59,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:59,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385461022] [2022-11-23 03:37:59,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385461022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:37:59,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:37:59,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:37:59,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775256383] [2022-11-23 03:37:59,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:37:59,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:37:59,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:37:59,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:37:59,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:37:59,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 494 [2022-11-23 03:37:59,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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) [2022-11-23 03:37:59,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:37:59,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 494 [2022-11-23 03:37:59,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:38:00,552 INFO L130 PetriNetUnfolder]: 17/59 cut-off events. [2022-11-23 03:38:00,552 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-11-23 03:38:00,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 59 events. 17/59 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 134 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 205. Up to 20 conditions per place. [2022-11-23 03:38:00,553 INFO L137 encePairwiseOnDemand]: 489/494 looper letters, 18 selfloop transitions, 5 changer transitions 13/36 dead transitions. [2022-11-23 03:38:00,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 219 flow [2022-11-23 03:38:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:38:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:38:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2022-11-23 03:38:00,558 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41295546558704455 [2022-11-23 03:38:00,558 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1224 transitions. [2022-11-23 03:38:00,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1224 transitions. [2022-11-23 03:38:00,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:38:00,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1224 transitions. [2022-11-23 03:38:00,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2022-11-23 03:38:00,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:38:00,570 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:38:00,570 INFO L175 Difference]: Start difference. First operand has 38 places, 20 transitions, 100 flow. Second operand 6 states and 1224 transitions. [2022-11-23 03:38:00,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 219 flow [2022-11-23 03:38:00,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 202 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-23 03:38:00,573 INFO L231 Difference]: Finished difference. Result has 37 places, 18 transitions, 81 flow [2022-11-23 03:38:00,573 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=37, PETRI_TRANSITIONS=18} [2022-11-23 03:38:00,574 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-11-23 03:38:00,574 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 81 flow [2022-11-23 03:38:00,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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) [2022-11-23 03:38:00,575 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:38:00,575 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:38:00,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:38:00,575 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 03:38:00,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:38:00,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1334925352, now seen corresponding path program 5 times [2022-11-23 03:38:00,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:38:00,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605646166] [2022-11-23 03:38:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:38:00,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:38:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:38:03,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:03,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:38:03,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605646166] [2022-11-23 03:38:03,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605646166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:38:03,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:38:03,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:38:03,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670105517] [2022-11-23 03:38:03,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:38:03,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:38:03,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:38:03,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:38:03,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:38:03,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2022-11-23 03:38:03,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 200.2) internal successors, (1001), 5 states have internal predecessors, (1001), 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) [2022-11-23 03:38:03,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:38:03,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2022-11-23 03:38:03,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:38:04,450 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2022-11-23 03:38:04,451 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-23 03:38:04,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 40 events. 8/40 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 134. Up to 19 conditions per place. [2022-11-23 03:38:04,451 INFO L137 encePairwiseOnDemand]: 489/494 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2022-11-23 03:38:04,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 178 flow [2022-11-23 03:38:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:38:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:38:04,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1213 transitions. [2022-11-23 03:38:04,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4092442645074224 [2022-11-23 03:38:04,456 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1213 transitions. [2022-11-23 03:38:04,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1213 transitions. [2022-11-23 03:38:04,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:38:04,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1213 transitions. [2022-11-23 03:38:04,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.16666666666666) internal successors, (1213), 6 states have internal predecessors, (1213), 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) [2022-11-23 03:38:04,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:38:04,465 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:38:04,466 INFO L175 Difference]: Start difference. First operand has 37 places, 18 transitions, 81 flow. Second operand 6 states and 1213 transitions. [2022-11-23 03:38:04,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 178 flow [2022-11-23 03:38:04,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 144 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-23 03:38:04,467 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 56 flow [2022-11-23 03:38:04,468 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2022-11-23 03:38:04,468 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2022-11-23 03:38:04,468 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 56 flow [2022-11-23 03:38:04,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.2) internal successors, (1001), 5 states have internal predecessors, (1001), 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) [2022-11-23 03:38:04,469 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:38:04,469 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:38:04,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:38:04,470 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 03:38:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:38:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash 590222854, now seen corresponding path program 6 times [2022-11-23 03:38:04,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:38:04,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782077812] [2022-11-23 03:38:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:38:04,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:38:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:38:06,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:06,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:38:06,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782077812] [2022-11-23 03:38:06,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782077812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:38:06,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:38:06,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:38:06,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312909649] [2022-11-23 03:38:06,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:38:06,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:38:06,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:38:06,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:38:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:38:06,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 494 [2022-11-23 03:38:06,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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) [2022-11-23 03:38:06,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:38:06,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 494 [2022-11-23 03:38:06,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:38:07,167 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-11-23 03:38:07,167 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-23 03:38:07,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 62. Up to 8 conditions per place. [2022-11-23 03:38:07,167 INFO L137 encePairwiseOnDemand]: 489/494 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-11-23 03:38:07,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 94 flow [2022-11-23 03:38:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:38:07,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:38:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1207 transitions. [2022-11-23 03:38:07,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4072199730094467 [2022-11-23 03:38:07,172 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1207 transitions. [2022-11-23 03:38:07,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1207 transitions. [2022-11-23 03:38:07,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:38:07,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1207 transitions. [2022-11-23 03:38:07,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 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) [2022-11-23 03:38:07,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:38:07,181 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 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) [2022-11-23 03:38:07,182 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 56 flow. Second operand 6 states and 1207 transitions. [2022-11-23 03:38:07,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 94 flow [2022-11-23 03:38:07,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-23 03:38:07,183 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2022-11-23 03:38:07,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2022-11-23 03:38:07,184 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-11-23 03:38:07,184 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2022-11-23 03:38:07,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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) [2022-11-23 03:38:07,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-23 03:38:07,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-23 03:38:07,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-23 03:38:07,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-23 03:38:07,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:38:07,189 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-11-23 03:38:07,193 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:38:07,193 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:38:07,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:38:07 BasicIcfg [2022-11-23 03:38:07,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:38:07,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:38:07,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:38:07,198 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:38:07,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:36" (3/4) ... [2022-11-23 03:38:07,201 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:38:07,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-23 03:38:07,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-23 03:38:07,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-23 03:38:07,214 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-23 03:38:07,214 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 03:38:07,215 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 03:38:07,215 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:38:07,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:38:07,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:38:07,251 INFO L158 Benchmark]: Toolchain (without parser) took 31475.46ms. Allocated memory was 167.8MB in the beginning and 622.9MB in the end (delta: 455.1MB). Free memory was 137.8MB in the beginning and 380.6MB in the end (delta: -242.9MB). Peak memory consumption was 211.6MB. Max. memory is 16.1GB. [2022-11-23 03:38:07,252 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory was 96.7MB in the beginning and 96.6MB in the end (delta: 76.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:38:07,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.77ms. Allocated memory is still 167.8MB. Free memory was 137.6MB in the beginning and 136.5MB in the end (delta: 1.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-23 03:38:07,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.11ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 134.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:38:07,253 INFO L158 Benchmark]: Boogie Preprocessor took 29.15ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:38:07,253 INFO L158 Benchmark]: RCFGBuilder took 706.62ms. Allocated memory is still 167.8MB. Free memory was 132.3MB in the beginning and 112.6MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 03:38:07,253 INFO L158 Benchmark]: TraceAbstraction took 30247.53ms. Allocated memory was 167.8MB in the beginning and 622.9MB in the end (delta: 455.1MB). Free memory was 112.1MB in the beginning and 383.8MB in the end (delta: -271.7MB). Peak memory consumption was 185.5MB. Max. memory is 16.1GB. [2022-11-23 03:38:07,254 INFO L158 Benchmark]: Witness Printer took 53.49ms. Allocated memory is still 622.9MB. Free memory was 383.8MB in the beginning and 380.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:38:07,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory was 96.7MB in the beginning and 96.6MB in the end (delta: 76.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.77ms. Allocated memory is still 167.8MB. Free memory was 137.6MB in the beginning and 136.5MB in the end (delta: 1.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.11ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 134.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.15ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 706.62ms. Allocated memory is still 167.8MB. Free memory was 132.3MB in the beginning and 112.6MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 30247.53ms. Allocated memory was 167.8MB in the beginning and 622.9MB in the end (delta: 455.1MB). Free memory was 112.1MB in the beginning and 383.8MB in the end (delta: -271.7MB). Peak memory consumption was 185.5MB. Max. memory is 16.1GB. * Witness Printer took 53.49ms. Allocated memory is still 622.9MB. Free memory was 383.8MB in the beginning and 380.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3s, 211 PlacesBefore, 26 PlacesAfterwards, 218 TransitionsBefore, 16 TransitionsAfterwards, 15390 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 125 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 56 ConcurrentYvCompositions, 17 ChoiceCompositions, 262 TotalNumberOfCompositions, 13766 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13766, independent: 13766, independent conditional: 0, independent unconditional: 13766, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11906, independent: 11906, independent conditional: 0, independent unconditional: 11906, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11906, independent: 11906, independent conditional: 0, independent unconditional: 11906, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13766, independent: 1860, independent conditional: 0, independent unconditional: 1860, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 11906, unknown conditional: 0, unknown unconditional: 11906] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 81]: 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 7 procedures, 342 locations, 4 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: 30.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1024 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 653 mSDsluCounter, 422 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1590 IncrementalHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 100 mSDtfsCounter, 1590 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=2, InterpolantAutomatonStates: 36, 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, 0.7s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3571 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 03:38:07,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9626d9-3bdc-451e-afef-96aea68494b4/bin/uautomizer-QkZJyEgLgS/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