./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 58a3707e98508adde0e15b9d8e43fa1e77573e5478a67cbc9ef6d2cbcb9307e7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:41,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:41,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:45:41,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:41,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:41,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:41,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:41,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:41,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:41,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:41,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:41,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:41,938 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:41,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:41,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:45:41,940 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:45:41,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:41,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:45:41,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:41,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:45:41,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:41,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:45:41,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:45:41,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:41,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:41,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:41,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:41,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:41,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:41,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:41,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:41,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:45:41,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:41,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:41,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:41,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:45:41,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:41,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:41,950 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:41,950 INFO L153 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_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58a3707e98508adde0e15b9d8e43fa1e77573e5478a67cbc9ef6d2cbcb9307e7 [2023-11-19 07:45:42,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:42,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:42,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:42,303 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:42,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:42,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2023-11-19 07:45:45,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:45,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:45,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2023-11-19 07:45:45,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/data/8d8954152/0bbcd1d4749b4db795f9dd10ca3cd752/FLAGe4105fb28 [2023-11-19 07:45:45,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/data/8d8954152/0bbcd1d4749b4db795f9dd10ca3cd752 [2023-11-19 07:45:45,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:45,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:45,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:45,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:45,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:45,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:45" (1/1) ... [2023-11-19 07:45:45,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d02f115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:45, skipping insertion in model container [2023-11-19 07:45:45,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:45" (1/1) ... [2023-11-19 07:45:45,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:45,920 WARN L240 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_3be01f3c-c191-487f-bf28-1c05a52bc19d/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2993,3006] [2023-11-19 07:45:45,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:45,951 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:45,999 WARN L240 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_3be01f3c-c191-487f-bf28-1c05a52bc19d/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2993,3006] [2023-11-19 07:45:46,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:46,038 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:46,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46 WrapperNode [2023-11-19 07:45:46,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:46,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:46,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:46,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:46,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,119 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 213 [2023-11-19 07:45:46,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:46,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:46,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:46,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:46,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:46,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:46,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:46,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:46,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (1/1) ... [2023-11-19 07:45:46,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:46,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:46,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:46,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:45:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:45:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:45:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:45:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:45:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:45:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:45:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:45:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:45:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:45:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:45:46,272 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:45:46,431 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:46,434 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:45:46,924 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:45:46,941 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:45:46,941 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:45:46,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:46 BoogieIcfgContainer [2023-11-19 07:45:46,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:45:46,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:45:46,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:45:46,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:45:46,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:45" (1/3) ... [2023-11-19 07:45:46,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d62bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:46, skipping insertion in model container [2023-11-19 07:45:46,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:46" (2/3) ... [2023-11-19 07:45:46,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d62bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:46, skipping insertion in model container [2023-11-19 07:45:46,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:46" (3/3) ... [2023-11-19 07:45:46,959 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2023-11-19 07:45:46,969 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:45:46,981 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:45:46,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:45:46,982 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:45:47,147 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:45:47,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 289 transitions, 599 flow [2023-11-19 07:45:47,480 INFO L124 PetriNetUnfolderBase]: 13/286 cut-off events. [2023-11-19 07:45:47,481 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:45:47,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 286 events. 13/286 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 413 event pairs, 0 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-19 07:45:47,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 289 transitions, 599 flow [2023-11-19 07:45:47,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 275 transitions, 568 flow [2023-11-19 07:45:47,515 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:45:47,538 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 275 transitions, 568 flow [2023-11-19 07:45:47,548 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 275 transitions, 568 flow [2023-11-19 07:45:47,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 275 transitions, 568 flow [2023-11-19 07:45:47,692 INFO L124 PetriNetUnfolderBase]: 13/275 cut-off events. [2023-11-19 07:45:47,692 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:45:47,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 275 events. 13/275 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 412 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-19 07:45:47,716 INFO L119 LiptonReduction]: Number of co-enabled transitions 25920 [2023-11-19 07:45:58,229 INFO L134 LiptonReduction]: Checked pairs total: 21512 [2023-11-19 07:45:58,230 INFO L136 LiptonReduction]: Total number of compositions: 316 [2023-11-19 07:45:58,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:45:58,254 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=LoopHeads, 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;@20c97f3c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:45:58,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:45:58,284 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:45:58,284 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-19 07:45:58,284 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:45:58,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:58,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:58,286 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)] === [2023-11-19 07:45:58,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash 195142354, now seen corresponding path program 1 times [2023-11-19 07:45:58,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:58,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027410418] [2023-11-19 07:45:58,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:58,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:45:59,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:59,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027410418] [2023-11-19 07:45:59,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027410418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:59,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:59,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565167798] [2023-11-19 07:45:59,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:59,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:45:59,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:59,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:45:59,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:59,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 605 [2023-11-19 07:45:59,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:45:59,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:59,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 605 [2023-11-19 07:45:59,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:59,858 INFO L124 PetriNetUnfolderBase]: 38/100 cut-off events. [2023-11-19 07:45:59,858 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-19 07:45:59,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 289 event pairs, 3 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 32 conditions per place. [2023-11-19 07:45:59,861 INFO L140 encePairwiseOnDemand]: 600/605 looper letters, 32 selfloop transitions, 5 changer transitions 7/44 dead transitions. [2023-11-19 07:45:59,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 44 transitions, 224 flow [2023-11-19 07:45:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:45:59,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:45:59,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1515 transitions. [2023-11-19 07:45:59,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41735537190082644 [2023-11-19 07:45:59,889 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1515 transitions. [2023-11-19 07:45:59,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1515 transitions. [2023-11-19 07:45:59,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:59,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1515 transitions. [2023-11-19 07:45:59,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.5) internal successors, (1515), 6 states have internal predecessors, (1515), 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) [2023-11-19 07:45:59,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:45:59,925 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:45:59,928 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 1515 transitions. [2023-11-19 07:45:59,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 44 transitions, 224 flow [2023-11-19 07:45:59,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 44 transitions, 192 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:45:59,934 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 57 flow [2023-11-19 07:45:59,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, 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=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-11-19 07:45:59,940 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2023-11-19 07:45:59,940 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 57 flow [2023-11-19 07:45:59,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:45:59,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:59,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:59,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:45:59,942 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)] === [2023-11-19 07:45:59,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:59,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1058135680, now seen corresponding path program 2 times [2023-11-19 07:45:59,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:59,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257033188] [2023-11-19 07:45:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:59,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:00,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:00,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257033188] [2023-11-19 07:46:00,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257033188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:00,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:00,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:00,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611973461] [2023-11-19 07:46:00,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:00,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:00,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:00,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:00,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:00,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 605 [2023-11-19 07:46:00,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:00,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:00,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 605 [2023-11-19 07:46:00,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:00,869 INFO L124 PetriNetUnfolderBase]: 39/109 cut-off events. [2023-11-19 07:46:00,870 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-19 07:46:00,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 109 events. 39/109 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 359 event pairs, 2 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 273. Up to 42 conditions per place. [2023-11-19 07:46:00,871 INFO L140 encePairwiseOnDemand]: 600/605 looper letters, 32 selfloop transitions, 6 changer transitions 11/49 dead transitions. [2023-11-19 07:46:00,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 49 transitions, 243 flow [2023-11-19 07:46:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:46:00,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:46:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1518 transitions. [2023-11-19 07:46:00,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2023-11-19 07:46:00,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1518 transitions. [2023-11-19 07:46:00,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1518 transitions. [2023-11-19 07:46:00,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:00,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1518 transitions. [2023-11-19 07:46:00,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 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) [2023-11-19 07:46:00,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:46:00,898 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:46:00,898 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 57 flow. Second operand 6 states and 1518 transitions. [2023-11-19 07:46:00,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 49 transitions, 243 flow [2023-11-19 07:46:00,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 49 transitions, 239 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-19 07:46:00,901 INFO L231 Difference]: Finished difference. Result has 33 places, 20 transitions, 86 flow [2023-11-19 07:46:00,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2023-11-19 07:46:00,903 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-11-19 07:46:00,903 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 86 flow [2023-11-19 07:46:00,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:00,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:00,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:00,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:00,905 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)] === [2023-11-19 07:46:00,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1248338324, now seen corresponding path program 3 times [2023-11-19 07:46:00,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:00,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622179948] [2023-11-19 07:46:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:00,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:01,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:01,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622179948] [2023-11-19 07:46:01,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622179948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:01,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:01,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035847915] [2023-11-19 07:46:01,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:01,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:01,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:01,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 605 [2023-11-19 07:46:01,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:01,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:01,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 605 [2023-11-19 07:46:01,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:01,605 INFO L124 PetriNetUnfolderBase]: 30/90 cut-off events. [2023-11-19 07:46:01,605 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2023-11-19 07:46:01,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 90 events. 30/90 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 262 event pairs, 7 based on Foata normal form. 1/91 useless extension candidates. Maximal degree in co-relation 277. Up to 37 conditions per place. [2023-11-19 07:46:01,608 INFO L140 encePairwiseOnDemand]: 600/605 looper letters, 26 selfloop transitions, 8 changer transitions 5/39 dead transitions. [2023-11-19 07:46:01,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 222 flow [2023-11-19 07:46:01,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:46:01,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1263 transitions. [2023-11-19 07:46:01,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4175206611570248 [2023-11-19 07:46:01,615 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1263 transitions. [2023-11-19 07:46:01,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1263 transitions. [2023-11-19 07:46:01,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:01,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1263 transitions. [2023-11-19 07:46:01,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 252.6) internal successors, (1263), 5 states have internal predecessors, (1263), 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) [2023-11-19 07:46:01,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 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) [2023-11-19 07:46:01,632 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 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) [2023-11-19 07:46:01,632 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 86 flow. Second operand 5 states and 1263 transitions. [2023-11-19 07:46:01,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 222 flow [2023-11-19 07:46:01,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 206 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-19 07:46:01,637 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 117 flow [2023-11-19 07:46:01,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=29, 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=5, PETRI_FLOW=117, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-11-19 07:46:01,639 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2023-11-19 07:46:01,643 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 117 flow [2023-11-19 07:46:01,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:01,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:01,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:01,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:46:01,645 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)] === [2023-11-19 07:46:01,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1825185276, now seen corresponding path program 4 times [2023-11-19 07:46:01,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:01,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459036132] [2023-11-19 07:46:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:01,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:02,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:02,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459036132] [2023-11-19 07:46:02,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459036132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:02,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:02,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:02,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298643863] [2023-11-19 07:46:02,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:02,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:02,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:02,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:02,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:02,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 605 [2023-11-19 07:46:02,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:02,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:02,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 605 [2023-11-19 07:46:02,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:02,357 INFO L124 PetriNetUnfolderBase]: 30/89 cut-off events. [2023-11-19 07:46:02,357 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2023-11-19 07:46:02,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 89 events. 30/89 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 258 event pairs, 2 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 101. Up to 31 conditions per place. [2023-11-19 07:46:02,358 INFO L140 encePairwiseOnDemand]: 600/605 looper letters, 18 selfloop transitions, 5 changer transitions 23/46 dead transitions. [2023-11-19 07:46:02,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 278 flow [2023-11-19 07:46:02,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:46:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:46:02,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1515 transitions. [2023-11-19 07:46:02,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41735537190082644 [2023-11-19 07:46:02,366 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1515 transitions. [2023-11-19 07:46:02,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1515 transitions. [2023-11-19 07:46:02,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:02,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1515 transitions. [2023-11-19 07:46:02,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.5) internal successors, (1515), 6 states have internal predecessors, (1515), 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) [2023-11-19 07:46:02,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:46:02,382 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:46:02,383 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 117 flow. Second operand 6 states and 1515 transitions. [2023-11-19 07:46:02,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 278 flow [2023-11-19 07:46:02,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:46:02,386 INFO L231 Difference]: Finished difference. Result has 41 places, 19 transitions, 109 flow [2023-11-19 07:46:02,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=109, PETRI_PLACES=41, PETRI_TRANSITIONS=19} [2023-11-19 07:46:02,387 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 15 predicate places. [2023-11-19 07:46:02,387 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 19 transitions, 109 flow [2023-11-19 07:46:02,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:02,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:02,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:02,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:46:02,389 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)] === [2023-11-19 07:46:02,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2006183480, now seen corresponding path program 5 times [2023-11-19 07:46:02,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:02,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248377248] [2023-11-19 07:46:02,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:02,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:02,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248377248] [2023-11-19 07:46:02,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248377248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:02,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:02,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:02,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833261551] [2023-11-19 07:46:02,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:02,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:02,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:02,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:02,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:02,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 605 [2023-11-19 07:46:02,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 19 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:02,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:02,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 605 [2023-11-19 07:46:02,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:02,956 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-11-19 07:46:02,957 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-11-19 07:46:02,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 40 events. 8/40 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 1 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 146. Up to 19 conditions per place. [2023-11-19 07:46:02,958 INFO L140 encePairwiseOnDemand]: 600/605 looper letters, 15 selfloop transitions, 3 changer transitions 10/28 dead transitions. [2023-11-19 07:46:02,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 28 transitions, 187 flow [2023-11-19 07:46:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:02,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:46:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1254 transitions. [2023-11-19 07:46:02,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41454545454545455 [2023-11-19 07:46:02,964 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1254 transitions. [2023-11-19 07:46:02,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1254 transitions. [2023-11-19 07:46:02,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:02,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1254 transitions. [2023-11-19 07:46:02,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 250.8) internal successors, (1254), 5 states have internal predecessors, (1254), 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) [2023-11-19 07:46:02,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 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) [2023-11-19 07:46:02,976 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 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) [2023-11-19 07:46:02,977 INFO L175 Difference]: Start difference. First operand has 41 places, 19 transitions, 109 flow. Second operand 5 states and 1254 transitions. [2023-11-19 07:46:02,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 28 transitions, 187 flow [2023-11-19 07:46:02,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 147 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-11-19 07:46:02,979 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 63 flow [2023-11-19 07:46:02,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2023-11-19 07:46:02,981 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-11-19 07:46:02,981 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 63 flow [2023-11-19 07:46:02,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:02,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:02,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:02,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:46:02,983 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)] === [2023-11-19 07:46:02,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash 227924014, now seen corresponding path program 6 times [2023-11-19 07:46:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:02,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871689716] [2023-11-19 07:46:02,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:02,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:03,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:03,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871689716] [2023-11-19 07:46:03,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871689716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:03,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:03,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:03,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100797483] [2023-11-19 07:46:03,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:03,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:03,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:03,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:03,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:03,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 605 [2023-11-19 07:46:03,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:03,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:03,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 605 [2023-11-19 07:46:03,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:03,574 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-11-19 07:46:03,574 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-19 07:46:03,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 21 events. 3/21 cut-off events. For 9/9 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 23. Up to 8 conditions per place. [2023-11-19 07:46:03,575 INFO L140 encePairwiseOnDemand]: 600/605 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-11-19 07:46:03,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 18 transitions, 101 flow [2023-11-19 07:46:03,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:46:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:46:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1489 transitions. [2023-11-19 07:46:03,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41019283746556473 [2023-11-19 07:46:03,582 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1489 transitions. [2023-11-19 07:46:03,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1489 transitions. [2023-11-19 07:46:03,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:03,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1489 transitions. [2023-11-19 07:46:03,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.16666666666666) internal successors, (1489), 6 states have internal predecessors, (1489), 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) [2023-11-19 07:46:03,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:46:03,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-19 07:46:03,597 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 63 flow. Second operand 6 states and 1489 transitions. [2023-11-19 07:46:03,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 18 transitions, 101 flow [2023-11-19 07:46:03,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 18 transitions, 79 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-11-19 07:46:03,598 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-11-19 07:46:03,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=22, 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=27, PETRI_TRANSITIONS=0} [2023-11-19 07:46:03,599 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2023-11-19 07:46:03,599 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-11-19 07:46:03,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 248.2) internal successors, (1241), 5 states have internal predecessors, (1241), 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) [2023-11-19 07:46:03,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-19 07:46:03,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-19 07:46:03,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-19 07:46:03,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-19 07:46:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:46:03,604 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2023-11-19 07:46:03,607 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:46:03,607 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:46:03,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:46:03 BasicIcfg [2023-11-19 07:46:03,611 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:46:03,612 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:46:03,612 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:46:03,612 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:46:03,613 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:46" (3/4) ... [2023-11-19 07:46:03,615 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:46:03,619 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 07:46:03,620 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-19 07:46:03,620 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-19 07:46:03,625 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-19 07:46:03,625 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:46:03,626 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:46:03,626 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:46:03,720 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:46:03,723 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:46:03,723 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:46:03,724 INFO L158 Benchmark]: Toolchain (without parser) took 18033.14ms. Allocated memory was 205.5MB in the beginning and 299.9MB in the end (delta: 94.4MB). Free memory was 166.6MB in the beginning and 213.3MB in the end (delta: -46.6MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2023-11-19 07:46:03,725 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 73.9MB in the beginning and 73.9MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:03,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.49ms. Allocated memory is still 205.5MB. Free memory was 166.6MB in the beginning and 153.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:46:03,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.76ms. Allocated memory is still 205.5MB. Free memory was 153.2MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:03,726 INFO L158 Benchmark]: Boogie Preprocessor took 48.42ms. Allocated memory is still 205.5MB. Free memory was 151.0MB in the beginning and 149.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:03,726 INFO L158 Benchmark]: RCFGBuilder took 778.19ms. Allocated memory is still 205.5MB. Free memory was 149.0MB in the beginning and 126.8MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:03,727 INFO L158 Benchmark]: TraceAbstraction took 16660.99ms. Allocated memory was 205.5MB in the beginning and 299.9MB in the end (delta: 94.4MB). Free memory was 125.9MB in the beginning and 218.5MB in the end (delta: -92.6MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-11-19 07:46:03,727 INFO L158 Benchmark]: Witness Printer took 111.45ms. Allocated memory is still 299.9MB. Free memory was 218.5MB in the beginning and 213.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:46:03,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 73.9MB in the beginning and 73.9MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.49ms. Allocated memory is still 205.5MB. Free memory was 166.6MB in the beginning and 153.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.76ms. Allocated memory is still 205.5MB. Free memory was 153.2MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.42ms. Allocated memory is still 205.5MB. Free memory was 151.0MB in the beginning and 149.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 778.19ms. Allocated memory is still 205.5MB. Free memory was 149.0MB in the beginning and 126.8MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16660.99ms. Allocated memory was 205.5MB in the beginning and 299.9MB in the end (delta: 94.4MB). Free memory was 125.9MB in the beginning and 218.5MB in the end (delta: -92.6MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Witness Printer took 111.45ms. Allocated memory is still 299.9MB. Free memory was 218.5MB in the beginning and 213.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7s, 272 PlacesBefore, 26 PlacesAfterwards, 275 TransitionsBefore, 16 TransitionsAfterwards, 25920 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 53 ConcurrentYvCompositions, 13 ChoiceCompositions, 316 TotalNumberOfCompositions, 21512 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21512, independent: 21512, independent conditional: 0, independent unconditional: 21512, 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: 15004, independent: 15004, independent conditional: 0, independent unconditional: 15004, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21512, independent: 6508, independent conditional: 0, independent unconditional: 6508, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 15004, unknown conditional: 0, unknown unconditional: 15004] , 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: 88]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 451 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: 16.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 645 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 440 mSDsluCounter, 286 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 236 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 973 IncrementalHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 50 mSDtfsCounter, 973 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=3, InterpolantAutomatonStates: 34, 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, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 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! [2023-11-19 07:46:03,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be01f3c-c191-487f-bf28-1c05a52bc19d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE