./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:19:02,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:19:02,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:19:02,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:19:02,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:19:02,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:19:02,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:19:02,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:19:02,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:19:02,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:19:02,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:19:02,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:19:02,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:19:02,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:19:02,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:19:02,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:19:02,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:19:02,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:19:02,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:19:02,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:19:02,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:19:02,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:19:02,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:19:02,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:19:02,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:19:02,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:19:02,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:19:02,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:19:02,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:19:02,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:19:02,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:19:02,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:19:02,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:19:02,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:19:03,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:19:03,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:19:03,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:19:03,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:19:03,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:19:03,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:19:03,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:19:03,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 19:19:03,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:19:03,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:19:03,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:19:03,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:19:03,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:19:03,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:19:03,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:19:03,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:19:03,027 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:19:03,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:19:03,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:19:03,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:19:03,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:19:03,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:19:03,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:19:03,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:19:03,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:19:03,029 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:19:03,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:19:03,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:19:03,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:19:03,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:19:03,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:19:03,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:19:03,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:19:03,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:19:03,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:19:03,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:19:03,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:19:03,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:19:03,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:19:03,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:19:03,031 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:19:03,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:19:03,032 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:19:03,032 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_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2022-12-13 19:19:03,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:19:03,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:19:03,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:19:03,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:19:03,245 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:19:03,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-12-13 19:19:05,806 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:19:05,927 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:19:05,927 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-12-13 19:19:05,932 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/data/8a6d5b7ab/a3f41aac80fe4b609b36f92837963269/FLAGab44dee34 [2022-12-13 19:19:05,942 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/data/8a6d5b7ab/a3f41aac80fe4b609b36f92837963269 [2022-12-13 19:19:05,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:19:05,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:19:05,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:19:05,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:19:05,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:19:05,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:19:05" (1/1) ... [2022-12-13 19:19:05,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64df78ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:05, skipping insertion in model container [2022-12-13 19:19:05,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:19:05" (1/1) ... [2022-12-13 19:19:05,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:19:05,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:19:06,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:19:06,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:19:06,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:19:06,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:19:06,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:19:06,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:19:06,123 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_10b38013-c267-473f-88de-b3ec38d5ae23/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-13 19:19:06,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:19:06,140 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:19:06,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:19:06,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:19:06,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:19:06,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:19:06,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:19:06,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:19:06,169 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_10b38013-c267-473f-88de-b3ec38d5ae23/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-13 19:19:06,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:19:06,187 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:19:06,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06 WrapperNode [2022-12-13 19:19:06,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:19:06,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:19:06,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:19:06,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:19:06,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,228 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 353 [2022-12-13 19:19:06,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:19:06,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:19:06,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:19:06,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:19:06,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,249 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:19:06,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:19:06,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:19:06,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:19:06,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (1/1) ... [2022-12-13 19:19:06,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:19:06,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:19:06,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:19:06,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:19:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:19:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 19:19:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 19:19:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 19:19:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 19:19:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 19:19:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 19:19:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:19:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:19:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:19:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:19:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:19:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:19:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:19:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:19:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:19:06,319 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 19:19:06,417 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:19:06,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:19:06,840 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:19:07,198 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:19:07,198 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:19:07,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:19:07 BoogieIcfgContainer [2022-12-13 19:19:07,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:19:07,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:19:07,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:19:07,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:19:07,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:19:05" (1/3) ... [2022-12-13 19:19:07,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391ab341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:19:07, skipping insertion in model container [2022-12-13 19:19:07,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:19:06" (2/3) ... [2022-12-13 19:19:07,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391ab341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:19:07, skipping insertion in model container [2022-12-13 19:19:07,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:19:07" (3/3) ... [2022-12-13 19:19:07,208 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-12-13 19:19:07,215 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:19:07,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:19:07,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:19:07,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:19:07,293 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 19:19:07,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 133 transitions, 290 flow [2022-12-13 19:19:07,368 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-12-13 19:19:07,369 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:19:07,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2022-12-13 19:19:07,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 133 transitions, 290 flow [2022-12-13 19:19:07,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 119 transitions, 256 flow [2022-12-13 19:19:07,377 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:19:07,384 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 119 transitions, 256 flow [2022-12-13 19:19:07,386 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 119 transitions, 256 flow [2022-12-13 19:19:07,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 256 flow [2022-12-13 19:19:07,408 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2022-12-13 19:19:07,408 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:19:07,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 119 events. 2/119 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-13 19:19:07,409 INFO L119 LiptonReduction]: Number of co-enabled transitions 270 [2022-12-13 19:19:16,026 INFO L134 LiptonReduction]: Checked pairs total: 430 [2022-12-13 19:19:16,026 INFO L136 LiptonReduction]: Total number of compositions: 111 [2022-12-13 19:19:16,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:19:16,040 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;@1e654077, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:19:16,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 19:19:16,046 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-13 19:19:16,047 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:19:16,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:19:16,047 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:19:16,048 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)] === [2022-12-13 19:19:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:19:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1578237023, now seen corresponding path program 1 times [2022-12-13 19:19:16,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:19:16,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525715] [2022-12-13 19:19:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:19:16,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:19:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:19:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:19:18,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:19:18,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525715] [2022-12-13 19:19:18,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:19:18,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:19:18,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:19:18,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707377513] [2022-12-13 19:19:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:19:18,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:19:18,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:19:18,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:19:18,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:19:19,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 244 [2022-12-13 19:19:19,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:19,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:19:19,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 244 [2022-12-13 19:19:19,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:19:19,487 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2022-12-13 19:19:19,488 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-13 19:19:19,488 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 283 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. [2022-12-13 19:19:19,489 INFO L137 encePairwiseOnDemand]: 239/244 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2022-12-13 19:19:19,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2022-12-13 19:19:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:19:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:19:19,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 610 transitions. [2022-12-13 19:19:19,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-13 19:19:19,502 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 610 transitions. [2022-12-13 19:19:19,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 610 transitions. [2022-12-13 19:19:19,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:19:19,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 610 transitions. [2022-12-13 19:19:19,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:19,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:19,515 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:19,516 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 610 transitions. [2022-12-13 19:19:19,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 228 flow [2022-12-13 19:19:19,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 45 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 19:19:19,521 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 71 flow [2022-12-13 19:19:19,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, 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} [2022-12-13 19:19:19,526 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2022-12-13 19:19:19,527 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 71 flow [2022-12-13 19:19:19,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:19,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:19:19,527 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:19:19,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:19:19,528 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)] === [2022-12-13 19:19:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:19:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1909805569, now seen corresponding path program 2 times [2022-12-13 19:19:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:19:19,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324982170] [2022-12-13 19:19:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:19:19,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:19:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:19:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:19:22,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:19:22,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324982170] [2022-12-13 19:19:22,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324982170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:19:22,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:19:22,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:19:22,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488405547] [2022-12-13 19:19:22,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:19:22,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:19:22,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:19:22,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:19:22,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:19:22,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 244 [2022-12-13 19:19:22,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:22,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:19:22,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 244 [2022-12-13 19:19:22,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:19:22,893 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2022-12-13 19:19:22,893 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-12-13 19:19:22,894 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 404 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. [2022-12-13 19:19:22,894 INFO L137 encePairwiseOnDemand]: 239/244 looper letters, 30 selfloop transitions, 7 changer transitions 9/46 dead transitions. [2022-12-13 19:19:22,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 46 transitions, 235 flow [2022-12-13 19:19:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:19:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:19:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 610 transitions. [2022-12-13 19:19:22,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-13 19:19:22,897 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 610 transitions. [2022-12-13 19:19:22,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 610 transitions. [2022-12-13 19:19:22,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:19:22,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 610 transitions. [2022-12-13 19:19:22,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:22,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:22,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:22,901 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 71 flow. Second operand 6 states and 610 transitions. [2022-12-13 19:19:22,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 46 transitions, 235 flow [2022-12-13 19:19:22,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 46 transitions, 231 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-13 19:19:22,902 INFO L231 Difference]: Finished difference. Result has 34 places, 21 transitions, 100 flow [2022-12-13 19:19:22,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, 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} [2022-12-13 19:19:22,903 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2022-12-13 19:19:22,903 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 100 flow [2022-12-13 19:19:22,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:22,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:19:22,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:19:22,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:19:22,904 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)] === [2022-12-13 19:19:22,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:19:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1728955851, now seen corresponding path program 3 times [2022-12-13 19:19:22,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:19:22,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759127087] [2022-12-13 19:19:22,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:19:22,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:19:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:19:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:19:24,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:19:24,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759127087] [2022-12-13 19:19:24,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759127087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:19:24,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:19:24,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:19:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673963293] [2022-12-13 19:19:24,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:19:24,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:19:24,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:19:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:19:24,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:19:24,941 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 244 [2022-12-13 19:19:24,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:24,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:19:24,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 244 [2022-12-13 19:19:24,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:19:25,289 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2022-12-13 19:19:25,289 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-12-13 19:19:25,290 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 339 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. [2022-12-13 19:19:25,290 INFO L137 encePairwiseOnDemand]: 239/244 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2022-12-13 19:19:25,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 257 flow [2022-12-13 19:19:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:19:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:19:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 608 transitions. [2022-12-13 19:19:25,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41530054644808745 [2022-12-13 19:19:25,292 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 608 transitions. [2022-12-13 19:19:25,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 608 transitions. [2022-12-13 19:19:25,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:19:25,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 608 transitions. [2022-12-13 19:19:25,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:25,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:25,295 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:25,296 INFO L175 Difference]: Start difference. First operand has 34 places, 21 transitions, 100 flow. Second operand 6 states and 608 transitions. [2022-12-13 19:19:25,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 257 flow [2022-12-13 19:19:25,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 243 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-13 19:19:25,297 INFO L231 Difference]: Finished difference. Result has 38 places, 20 transitions, 100 flow [2022-12-13 19:19:25,297 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, 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} [2022-12-13 19:19:25,298 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2022-12-13 19:19:25,298 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 100 flow [2022-12-13 19:19:25,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:25,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:19:25,298 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:19:25,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:19:25,299 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)] === [2022-12-13 19:19:25,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:19:25,299 INFO L85 PathProgramCache]: Analyzing trace with hash 895756731, now seen corresponding path program 4 times [2022-12-13 19:19:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:19:25,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162783224] [2022-12-13 19:19:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:19:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:19:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:19:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:19:28,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:19:28,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162783224] [2022-12-13 19:19:28,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162783224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:19:28,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:19:28,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:19:28,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989208751] [2022-12-13 19:19:28,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:19:28,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:19:28,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:19:28,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:19:28,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:19:28,451 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 244 [2022-12-13 19:19:28,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:28,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:19:28,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 244 [2022-12-13 19:19:28,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:19:28,922 INFO L130 PetriNetUnfolder]: 17/59 cut-off events. [2022-12-13 19:19:28,922 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-12-13 19:19:28,923 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 137 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. [2022-12-13 19:19:28,923 INFO L137 encePairwiseOnDemand]: 239/244 looper letters, 18 selfloop transitions, 5 changer transitions 13/36 dead transitions. [2022-12-13 19:19:28,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 219 flow [2022-12-13 19:19:28,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:19:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:19:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 600 transitions. [2022-12-13 19:19:28,925 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4098360655737705 [2022-12-13 19:19:28,925 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 600 transitions. [2022-12-13 19:19:28,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 600 transitions. [2022-12-13 19:19:28,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:19:28,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 600 transitions. [2022-12-13 19:19:28,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:28,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:28,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:28,929 INFO L175 Difference]: Start difference. First operand has 38 places, 20 transitions, 100 flow. Second operand 6 states and 600 transitions. [2022-12-13 19:19:28,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 219 flow [2022-12-13 19:19:28,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 202 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-13 19:19:28,931 INFO L231 Difference]: Finished difference. Result has 37 places, 18 transitions, 81 flow [2022-12-13 19:19:28,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, 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} [2022-12-13 19:19:28,931 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-12-13 19:19:28,931 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 81 flow [2022-12-13 19:19:28,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:28,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:19:28,932 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:19:28,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:19:28,932 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)] === [2022-12-13 19:19:28,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:19:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1833079347, now seen corresponding path program 5 times [2022-12-13 19:19:28,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:19:28,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124805406] [2022-12-13 19:19:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:19:28,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:19:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:19:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:19:30,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:19:30,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124805406] [2022-12-13 19:19:30,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124805406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:19:30,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:19:30,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:19:30,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606217695] [2022-12-13 19:19:30,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:19:30,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:19:30,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:19:30,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:19:30,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:19:30,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 244 [2022-12-13 19:19:30,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:30,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:19:30,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 244 [2022-12-13 19:19:30,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:19:31,270 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2022-12-13 19:19:31,270 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 19:19:31,270 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 5. Compared 59 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. [2022-12-13 19:19:31,270 INFO L137 encePairwiseOnDemand]: 239/244 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2022-12-13 19:19:31,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 178 flow [2022-12-13 19:19:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:19:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:19:31,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2022-12-13 19:19:31,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4064207650273224 [2022-12-13 19:19:31,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 595 transitions. [2022-12-13 19:19:31,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 595 transitions. [2022-12-13 19:19:31,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:19:31,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 595 transitions. [2022-12-13 19:19:31,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:31,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:31,275 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:31,275 INFO L175 Difference]: Start difference. First operand has 37 places, 18 transitions, 81 flow. Second operand 6 states and 595 transitions. [2022-12-13 19:19:31,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 178 flow [2022-12-13 19:19:31,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 144 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-13 19:19:31,276 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 56 flow [2022-12-13 19:19:31,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, 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} [2022-12-13 19:19:31,277 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2022-12-13 19:19:31,277 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 56 flow [2022-12-13 19:19:31,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:31,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:19:31,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:19:31,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:19:31,277 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)] === [2022-12-13 19:19:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:19:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1890433143, now seen corresponding path program 6 times [2022-12-13 19:19:31,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:19:31,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786919093] [2022-12-13 19:19:31,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:19:31,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:19:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:19:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:19:36,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:19:36,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786919093] [2022-12-13 19:19:36,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786919093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:19:36,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:19:36,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:19:36,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201607010] [2022-12-13 19:19:36,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:19:36,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:19:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:19:36,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:19:36,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:19:36,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 244 [2022-12-13 19:19:36,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:36,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:19:36,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 244 [2022-12-13 19:19:36,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:19:36,891 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-13 19:19:36,891 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 19:19:36,891 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 3. Compared 11 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. [2022-12-13 19:19:36,891 INFO L137 encePairwiseOnDemand]: 239/244 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-12-13 19:19:36,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 94 flow [2022-12-13 19:19:36,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:19:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:19:36,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2022-12-13 19:19:36,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.398224043715847 [2022-12-13 19:19:36,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2022-12-13 19:19:36,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2022-12-13 19:19:36,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:19:36,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2022-12-13 19:19:36,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:36,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:36,895 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:36,895 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 56 flow. Second operand 6 states and 583 transitions. [2022-12-13 19:19:36,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 94 flow [2022-12-13 19:19:36,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 19:19:36,896 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2022-12-13 19:19:36,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, 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} [2022-12-13 19:19:36,897 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-12-13 19:19:36,897 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2022-12-13 19:19:36,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:36,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 19:19:36,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 19:19:36,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 19:19:36,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 19:19:36,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:19:36,899 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-13 19:19:36,902 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:19:36,902 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:19:36,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:19:36 BasicIcfg [2022-12-13 19:19:36,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:19:36,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:19:36,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:19:36,905 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:19:36,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:19:07" (3/4) ... [2022-12-13 19:19:36,907 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:19:36,911 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 19:19:36,911 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 19:19:36,911 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 19:19:36,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 19:19:36,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 19:19:36,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:19:36,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:19:36,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:19:36,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:19:36,942 INFO L158 Benchmark]: Toolchain (without parser) took 30997.29ms. Allocated memory was 125.8MB in the beginning and 553.6MB in the end (delta: 427.8MB). Free memory was 82.2MB in the beginning and 402.2MB in the end (delta: -320.1MB). Peak memory consumption was 109.3MB. Max. memory is 16.1GB. [2022-12-13 19:19:36,942 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:19:36,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.86ms. Allocated memory is still 125.8MB. Free memory was 81.9MB in the beginning and 69.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:19:36,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.60ms. Allocated memory is still 125.8MB. Free memory was 69.6MB in the beginning and 66.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:19:36,943 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:19:36,943 INFO L158 Benchmark]: RCFGBuilder took 946.68ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 64.3MB in the beginning and 65.8MB in the end (delta: -1.4MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2022-12-13 19:19:36,944 INFO L158 Benchmark]: TraceAbstraction took 29701.46ms. Allocated memory was 151.0MB in the beginning and 553.6MB in the end (delta: 402.7MB). Free memory was 64.7MB in the beginning and 405.4MB in the end (delta: -340.6MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2022-12-13 19:19:36,944 INFO L158 Benchmark]: Witness Printer took 37.28ms. Allocated memory is still 553.6MB. Free memory was 405.4MB in the beginning and 402.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:19:36,945 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 is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.86ms. Allocated memory is still 125.8MB. Free memory was 81.9MB in the beginning and 69.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.60ms. Allocated memory is still 125.8MB. Free memory was 69.6MB in the beginning and 66.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 946.68ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 64.3MB in the beginning and 65.8MB in the end (delta: -1.4MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * TraceAbstraction took 29701.46ms. Allocated memory was 151.0MB in the beginning and 553.6MB in the end (delta: 402.7MB). Free memory was 64.7MB in the beginning and 405.4MB in the end (delta: -340.6MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. * Witness Printer took 37.28ms. Allocated memory is still 553.6MB. Free memory was 405.4MB in the beginning and 402.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6s, 127 PlacesBefore, 26 PlacesAfterwards, 119 TransitionsBefore, 16 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 8 FixpointIterations, 88 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 111 TotalNumberOfCompositions, 430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 430, independent: 430, independent conditional: 0, independent unconditional: 430, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 160, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 430, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 160, unknown conditional: 0, unknown unconditional: 160] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, 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: 101]: 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, 147 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: 29.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 871 IncrementalHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 871 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.4s 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, 0.8s SatisfiabilityAnalysisTime, 16.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 4264 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! [2022-12-13 19:19:36,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38013-c267-473f-88de-b3ec38d5ae23/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE