./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a --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 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- 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-b5237d8 [2022-11-21 16:35:04,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:35:04,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:35:04,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:35:04,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:35:04,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:35:04,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:35:04,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:35:04,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:35:04,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:35:04,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:35:04,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:35:04,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:35:04,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:35:04,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:35:04,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:35:04,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:35:04,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:35:04,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:35:04,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:35:04,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:35:04,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:35:04,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:35:04,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:35:04,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:35:04,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:35:04,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:35:04,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:35:04,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:35:04,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:35:04,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:35:04,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:35:04,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:35:04,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:35:04,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:35:04,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:35:04,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:35:04,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:35:04,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:35:04,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:35:04,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:35:04,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:35:04,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:35:04,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:35:04,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:35:04,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:35:04,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:35:04,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:35:04,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:35:04,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:35:04,708 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:35:04,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:35:04,709 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:35:04,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:35:04,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:35:04,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:35:04,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:35:04,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:35:04,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:35:04,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:35:04,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:35:04,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:35:04,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:35:04,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:35:04,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:35:04,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:35:04,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:35:04,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:35:04,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:35:04,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:35:04,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:35:04,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:35:04,713 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:35:04,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:35:04,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:35:04,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2022-11-21 16:35:05,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:35:05,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:35:05,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:35:05,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:35:05,147 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:35:05,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2022-11-21 16:35:08,456 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:35:08,872 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:35:08,878 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2022-11-21 16:35:08,896 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/data/b27512f09/401545548b5847c28e12ac02744ea9a8/FLAG2ac0aebed [2022-11-21 16:35:09,057 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/data/b27512f09/401545548b5847c28e12ac02744ea9a8 [2022-11-21 16:35:09,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:35:09,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:35:09,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:35:09,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:35:09,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:35:09,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:09,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364982c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09, skipping insertion in model container [2022-11-21 16:35:09,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:09,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:35:09,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:35:09,413 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_90138614-aff0-446c-ad18-da6c30b43773/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2022-11-21 16:35:09,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:35:09,734 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:35:09,747 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_90138614-aff0-446c-ad18-da6c30b43773/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2022-11-21 16:35:09,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:35:09,859 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:35:09,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09 WrapperNode [2022-11-21 16:35:09,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:35:09,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:35:09,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:35:09,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:35:09,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:09,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:09,967 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 203 [2022-11-21 16:35:09,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:35:09,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:35:09,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:35:09,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:35:09,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:09,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:09,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:09,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:10,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:10,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:10,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:10,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:10,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:35:10,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:35:10,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:35:10,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:35:10,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (1/1) ... [2022-11-21 16:35:10,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:35:10,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:35:10,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:35:10,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:35:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:35:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:35:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:35:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:35:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:35:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:35:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:35:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:35:10,145 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:35:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:35:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:35:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:35:10,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:35:10,148 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:35:10,367 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:35:10,373 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:35:10,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:35:11,352 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:35:11,352 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:35:11,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:35:11 BoogieIcfgContainer [2022-11-21 16:35:11,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:35:11,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:35:11,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:35:11,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:35:11,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:35:09" (1/3) ... [2022-11-21 16:35:11,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269e0e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:35:11, skipping insertion in model container [2022-11-21 16:35:11,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:09" (2/3) ... [2022-11-21 16:35:11,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269e0e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:35:11, skipping insertion in model container [2022-11-21 16:35:11,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:35:11" (3/3) ... [2022-11-21 16:35:11,374 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2022-11-21 16:35:11,386 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:35:11,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:35:11,399 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 16:35:11,400 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:35:11,490 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:35:11,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 114 transitions, 238 flow [2022-11-21 16:35:11,641 INFO L130 PetriNetUnfolder]: 2/112 cut-off events. [2022-11-21 16:35:11,641 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:35:11,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-11-21 16:35:11,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 114 transitions, 238 flow [2022-11-21 16:35:11,654 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 112 transitions, 230 flow [2022-11-21 16:35:11,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:35:11,676 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;@17a5a28d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:35:11,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-21 16:35:11,715 INFO L130 PetriNetUnfolder]: 0/73 cut-off events. [2022-11-21 16:35:11,716 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:35:11,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:11,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:11,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:11,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash 30532827, now seen corresponding path program 1 times [2022-11-21 16:35:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:11,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154080057] [2022-11-21 16:35:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:11,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:12,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:12,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154080057] [2022-11-21 16:35:12,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154080057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:12,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:12,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:35:12,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814641351] [2022-11-21 16:35:12,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:12,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:35:12,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:12,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:35:12,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:35:12,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 114 [2022-11-21 16:35:12,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:12,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:12,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 114 [2022-11-21 16:35:12,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:12,975 INFO L130 PetriNetUnfolder]: 111/381 cut-off events. [2022-11-21 16:35:12,976 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-21 16:35:12,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 381 events. 111/381 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1603 event pairs, 9 based on Foata normal form. 20/358 useless extension candidates. Maximal degree in co-relation 532. Up to 175 conditions per place. [2022-11-21 16:35:12,984 INFO L137 encePairwiseOnDemand]: 109/114 looper letters, 17 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2022-11-21 16:35:12,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 113 transitions, 270 flow [2022-11-21 16:35:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:35:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:35:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2022-11-21 16:35:13,009 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2022-11-21 16:35:13,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2022-11-21 16:35:13,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2022-11-21 16:35:13,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:13,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2022-11-21 16:35:13,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,037 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 230 flow. Second operand 3 states and 312 transitions. [2022-11-21 16:35:13,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 113 transitions, 270 flow [2022-11-21 16:35:13,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 113 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:35:13,054 INFO L231 Difference]: Finished difference. Result has 115 places, 108 transitions, 224 flow [2022-11-21 16:35:13,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=115, PETRI_TRANSITIONS=108} [2022-11-21 16:35:13,064 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, -2 predicate places. [2022-11-21 16:35:13,064 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 108 transitions, 224 flow [2022-11-21 16:35:13,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:13,066 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:13,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:35:13,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:13,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:13,068 INFO L85 PathProgramCache]: Analyzing trace with hash 946518168, now seen corresponding path program 1 times [2022-11-21 16:35:13,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:13,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360844918] [2022-11-21 16:35:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:13,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:13,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:13,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360844918] [2022-11-21 16:35:13,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360844918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:13,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:13,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:35:13,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521614153] [2022-11-21 16:35:13,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:13,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:35:13,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:35:13,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:35:13,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 114 [2022-11-21 16:35:13,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:13,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 114 [2022-11-21 16:35:13,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:13,743 INFO L130 PetriNetUnfolder]: 94/419 cut-off events. [2022-11-21 16:35:13,743 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-21 16:35:13,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 419 events. 94/419 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1998 event pairs, 26 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 553. Up to 117 conditions per place. [2022-11-21 16:35:13,753 INFO L137 encePairwiseOnDemand]: 111/114 looper letters, 16 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2022-11-21 16:35:13,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 112 transitions, 268 flow [2022-11-21 16:35:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:35:13,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:35:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2022-11-21 16:35:13,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8976608187134503 [2022-11-21 16:35:13,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2022-11-21 16:35:13,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2022-11-21 16:35:13,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:13,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2022-11-21 16:35:13,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,765 INFO L175 Difference]: Start difference. First operand has 115 places, 108 transitions, 224 flow. Second operand 3 states and 307 transitions. [2022-11-21 16:35:13,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 112 transitions, 268 flow [2022-11-21 16:35:13,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:35:13,770 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 222 flow [2022-11-21 16:35:13,771 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2022-11-21 16:35:13,772 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, -3 predicate places. [2022-11-21 16:35:13,772 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 222 flow [2022-11-21 16:35:13,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:13,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:13,773 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:13,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:35:13,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:13,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:13,776 INFO L85 PathProgramCache]: Analyzing trace with hash 682239330, now seen corresponding path program 1 times [2022-11-21 16:35:13,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:13,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906968807] [2022-11-21 16:35:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:13,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:14,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:14,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906968807] [2022-11-21 16:35:14,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906968807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:14,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:14,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:35:14,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987521126] [2022-11-21 16:35:14,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:14,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:35:14,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:14,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:35:14,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:35:14,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 114 [2022-11-21 16:35:14,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 222 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:14,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:14,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 114 [2022-11-21 16:35:14,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:15,772 INFO L130 PetriNetUnfolder]: 435/1244 cut-off events. [2022-11-21 16:35:15,773 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-21 16:35:15,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2046 conditions, 1244 events. 435/1244 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7856 event pairs, 104 based on Foata normal form. 0/1199 useless extension candidates. Maximal degree in co-relation 1973. Up to 292 conditions per place. [2022-11-21 16:35:15,779 INFO L137 encePairwiseOnDemand]: 107/114 looper letters, 30 selfloop transitions, 3 changer transitions 58/160 dead transitions. [2022-11-21 16:35:15,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 160 transitions, 498 flow [2022-11-21 16:35:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:35:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:35:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 884 transitions. [2022-11-21 16:35:15,782 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.775438596491228 [2022-11-21 16:35:15,783 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 884 transitions. [2022-11-21 16:35:15,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 884 transitions. [2022-11-21 16:35:15,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:15,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 884 transitions. [2022-11-21 16:35:15,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:15,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 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) [2022-11-21 16:35:15,790 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 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) [2022-11-21 16:35:15,790 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 222 flow. Second operand 10 states and 884 transitions. [2022-11-21 16:35:15,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 160 transitions, 498 flow [2022-11-21 16:35:15,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 160 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:35:15,795 INFO L231 Difference]: Finished difference. Result has 128 places, 97 transitions, 220 flow [2022-11-21 16:35:15,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=220, PETRI_PLACES=128, PETRI_TRANSITIONS=97} [2022-11-21 16:35:15,796 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 11 predicate places. [2022-11-21 16:35:15,796 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 97 transitions, 220 flow [2022-11-21 16:35:15,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:15,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:15,797 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:15,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:35:15,798 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:15,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:15,799 INFO L85 PathProgramCache]: Analyzing trace with hash 903079039, now seen corresponding path program 1 times [2022-11-21 16:35:15,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:15,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903806285] [2022-11-21 16:35:15,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:15,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:16,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:16,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903806285] [2022-11-21 16:35:16,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903806285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:16,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:16,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:35:16,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295502845] [2022-11-21 16:35:16,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:16,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:35:16,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:16,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:35:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:35:16,203 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 114 [2022-11-21 16:35:16,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 97 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:16,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:16,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 114 [2022-11-21 16:35:16,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:16,669 INFO L130 PetriNetUnfolder]: 153/461 cut-off events. [2022-11-21 16:35:16,669 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-11-21 16:35:16,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 461 events. 153/461 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2022 event pairs, 37 based on Foata normal form. 12/451 useless extension candidates. Maximal degree in co-relation 826. Up to 126 conditions per place. [2022-11-21 16:35:16,672 INFO L137 encePairwiseOnDemand]: 108/114 looper letters, 23 selfloop transitions, 2 changer transitions 28/132 dead transitions. [2022-11-21 16:35:16,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 132 transitions, 419 flow [2022-11-21 16:35:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:35:16,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 16:35:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 865 transitions. [2022-11-21 16:35:16,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8430799220272904 [2022-11-21 16:35:16,676 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 865 transitions. [2022-11-21 16:35:16,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 865 transitions. [2022-11-21 16:35:16,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:16,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 865 transitions. [2022-11-21 16:35:16,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.11111111111111) internal successors, (865), 9 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:16,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:16,689 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:16,689 INFO L175 Difference]: Start difference. First operand has 128 places, 97 transitions, 220 flow. Second operand 9 states and 865 transitions. [2022-11-21 16:35:16,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 132 transitions, 419 flow [2022-11-21 16:35:16,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 132 transitions, 383 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-11-21 16:35:16,696 INFO L231 Difference]: Finished difference. Result has 118 places, 97 transitions, 222 flow [2022-11-21 16:35:16,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=118, PETRI_TRANSITIONS=97} [2022-11-21 16:35:16,698 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 1 predicate places. [2022-11-21 16:35:16,698 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 97 transitions, 222 flow [2022-11-21 16:35:16,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:16,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:16,701 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:16,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:35:16,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash -237390395, now seen corresponding path program 1 times [2022-11-21 16:35:16,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:16,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694510752] [2022-11-21 16:35:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:19,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:19,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694510752] [2022-11-21 16:35:19,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694510752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:19,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:19,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-21 16:35:19,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328351142] [2022-11-21 16:35:19,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:19,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 16:35:19,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:19,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 16:35:19,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:35:19,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 114 [2022-11-21 16:35:19,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 97 transitions, 222 flow. Second operand has 16 states, 16 states have (on average 81.5625) internal successors, (1305), 16 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:19,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:19,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 114 [2022-11-21 16:35:19,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:20,710 INFO L130 PetriNetUnfolder]: 162/454 cut-off events. [2022-11-21 16:35:20,710 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2022-11-21 16:35:20,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 454 events. 162/454 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1924 event pairs, 31 based on Foata normal form. 6/421 useless extension candidates. Maximal degree in co-relation 871. Up to 181 conditions per place. [2022-11-21 16:35:20,714 INFO L137 encePairwiseOnDemand]: 101/114 looper letters, 33 selfloop transitions, 10 changer transitions 19/131 dead transitions. [2022-11-21 16:35:20,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 443 flow [2022-11-21 16:35:20,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:35:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-21 16:35:20,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1344 transitions. [2022-11-21 16:35:20,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2022-11-21 16:35:20,720 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1344 transitions. [2022-11-21 16:35:20,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1344 transitions. [2022-11-21 16:35:20,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:20,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1344 transitions. [2022-11-21 16:35:20,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:20,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 114.0) internal successors, (1938), 17 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:20,731 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 114.0) internal successors, (1938), 17 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:20,731 INFO L175 Difference]: Start difference. First operand has 118 places, 97 transitions, 222 flow. Second operand 16 states and 1344 transitions. [2022-11-21 16:35:20,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 443 flow [2022-11-21 16:35:20,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 131 transitions, 407 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-11-21 16:35:20,736 INFO L231 Difference]: Finished difference. Result has 127 places, 100 transitions, 261 flow [2022-11-21 16:35:20,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=261, PETRI_PLACES=127, PETRI_TRANSITIONS=100} [2022-11-21 16:35:20,738 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 10 predicate places. [2022-11-21 16:35:20,738 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 100 transitions, 261 flow [2022-11-21 16:35:20,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.5625) internal successors, (1305), 16 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:20,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:20,739 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:20,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:35:20,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:20,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1385083105, now seen corresponding path program 2 times [2022-11-21 16:35:20,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:20,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116296609] [2022-11-21 16:35:20,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:20,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:23,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:23,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:23,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116296609] [2022-11-21 16:35:23,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116296609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:23,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:23,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 16:35:23,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665091359] [2022-11-21 16:35:23,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:23,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:35:23,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:23,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:35:23,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:35:23,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 114 [2022-11-21 16:35:23,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 100 transitions, 261 flow. Second operand has 15 states, 15 states have (on average 80.6) internal successors, (1209), 15 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:23,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:23,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 114 [2022-11-21 16:35:23,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:25,107 INFO L130 PetriNetUnfolder]: 461/1045 cut-off events. [2022-11-21 16:35:25,107 INFO L131 PetriNetUnfolder]: For 580/584 co-relation queries the response was YES. [2022-11-21 16:35:25,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2370 conditions, 1045 events. 461/1045 cut-off events. For 580/584 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5885 event pairs, 47 based on Foata normal form. 21/1041 useless extension candidates. Maximal degree in co-relation 2286. Up to 234 conditions per place. [2022-11-21 16:35:25,117 INFO L137 encePairwiseOnDemand]: 99/114 looper letters, 57 selfloop transitions, 17 changer transitions 75/217 dead transitions. [2022-11-21 16:35:25,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 217 transitions, 936 flow [2022-11-21 16:35:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-21 16:35:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-21 16:35:25,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2047 transitions. [2022-11-21 16:35:25,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.748172514619883 [2022-11-21 16:35:25,124 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2047 transitions. [2022-11-21 16:35:25,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2047 transitions. [2022-11-21 16:35:25,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:25,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2047 transitions. [2022-11-21 16:35:25,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 85.29166666666667) internal successors, (2047), 24 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:25,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 114.0) internal successors, (2850), 25 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:25,140 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 114.0) internal successors, (2850), 25 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:25,140 INFO L175 Difference]: Start difference. First operand has 127 places, 100 transitions, 261 flow. Second operand 24 states and 2047 transitions. [2022-11-21 16:35:25,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 217 transitions, 936 flow [2022-11-21 16:35:25,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 217 transitions, 876 flow, removed 23 selfloop flow, removed 9 redundant places. [2022-11-21 16:35:25,148 INFO L231 Difference]: Finished difference. Result has 150 places, 109 transitions, 385 flow [2022-11-21 16:35:25,149 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=385, PETRI_PLACES=150, PETRI_TRANSITIONS=109} [2022-11-21 16:35:25,150 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 33 predicate places. [2022-11-21 16:35:25,150 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 109 transitions, 385 flow [2022-11-21 16:35:25,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 80.6) internal successors, (1209), 15 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:25,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:25,151 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:25,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:35:25,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:25,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:25,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1258323360, now seen corresponding path program 1 times [2022-11-21 16:35:25,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:25,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008592465] [2022-11-21 16:35:25,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:25,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:27,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:27,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008592465] [2022-11-21 16:35:27,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008592465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:27,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:27,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-21 16:35:27,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414545498] [2022-11-21 16:35:27,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:27,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:35:27,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:27,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:35:27,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:35:27,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 114 [2022-11-21 16:35:27,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 109 transitions, 385 flow. Second operand has 18 states, 18 states have (on average 71.88888888888889) internal successors, (1294), 18 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:27,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:27,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 114 [2022-11-21 16:35:27,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:30,706 INFO L130 PetriNetUnfolder]: 498/1138 cut-off events. [2022-11-21 16:35:30,706 INFO L131 PetriNetUnfolder]: For 3653/3653 co-relation queries the response was YES. [2022-11-21 16:35:30,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3700 conditions, 1138 events. 498/1138 cut-off events. For 3653/3653 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 6709 event pairs, 34 based on Foata normal form. 11/1125 useless extension candidates. Maximal degree in co-relation 3593. Up to 400 conditions per place. [2022-11-21 16:35:30,718 INFO L137 encePairwiseOnDemand]: 90/114 looper letters, 68 selfloop transitions, 53 changer transitions 50/230 dead transitions. [2022-11-21 16:35:30,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 230 transitions, 1513 flow [2022-11-21 16:35:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 16:35:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-21 16:35:30,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2339 transitions. [2022-11-21 16:35:30,726 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6618562535370685 [2022-11-21 16:35:30,726 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2339 transitions. [2022-11-21 16:35:30,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2339 transitions. [2022-11-21 16:35:30,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:30,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2339 transitions. [2022-11-21 16:35:30,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 75.45161290322581) internal successors, (2339), 31 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:30,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 114.0) internal successors, (3648), 32 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:30,745 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 114.0) internal successors, (3648), 32 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:30,745 INFO L175 Difference]: Start difference. First operand has 150 places, 109 transitions, 385 flow. Second operand 31 states and 2339 transitions. [2022-11-21 16:35:30,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 230 transitions, 1513 flow [2022-11-21 16:35:30,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 230 transitions, 1245 flow, removed 128 selfloop flow, removed 18 redundant places. [2022-11-21 16:35:30,764 INFO L231 Difference]: Finished difference. Result has 168 places, 148 transitions, 720 flow [2022-11-21 16:35:30,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=720, PETRI_PLACES=168, PETRI_TRANSITIONS=148} [2022-11-21 16:35:30,766 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 51 predicate places. [2022-11-21 16:35:30,766 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 148 transitions, 720 flow [2022-11-21 16:35:30,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 71.88888888888889) internal successors, (1294), 18 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:30,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:30,767 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:30,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:35:30,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:30,768 INFO L85 PathProgramCache]: Analyzing trace with hash -464578118, now seen corresponding path program 2 times [2022-11-21 16:35:30,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:30,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188638581] [2022-11-21 16:35:30,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:30,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:32,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:32,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188638581] [2022-11-21 16:35:32,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188638581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:32,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:32,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:35:32,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049408355] [2022-11-21 16:35:32,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:32,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:35:32,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:32,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:35:32,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:35:32,206 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 114 [2022-11-21 16:35:32,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 148 transitions, 720 flow. Second operand has 11 states, 11 states have (on average 77.63636363636364) internal successors, (854), 11 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:32,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:32,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 114 [2022-11-21 16:35:32,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:34,963 INFO L130 PetriNetUnfolder]: 513/1232 cut-off events. [2022-11-21 16:35:34,964 INFO L131 PetriNetUnfolder]: For 7729/8183 co-relation queries the response was YES. [2022-11-21 16:35:34,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5576 conditions, 1232 events. 513/1232 cut-off events. For 7729/8183 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7637 event pairs, 57 based on Foata normal form. 81/1260 useless extension candidates. Maximal degree in co-relation 5465. Up to 407 conditions per place. [2022-11-21 16:35:34,981 INFO L137 encePairwiseOnDemand]: 97/114 looper letters, 80 selfloop transitions, 50 changer transitions 50/244 dead transitions. [2022-11-21 16:35:34,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 244 transitions, 2226 flow [2022-11-21 16:35:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 16:35:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-21 16:35:34,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1781 transitions. [2022-11-21 16:35:34,988 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.710127591706539 [2022-11-21 16:35:34,988 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1781 transitions. [2022-11-21 16:35:34,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1781 transitions. [2022-11-21 16:35:34,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:34,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1781 transitions. [2022-11-21 16:35:34,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 80.95454545454545) internal successors, (1781), 22 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:34,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 114.0) internal successors, (2622), 23 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:35,001 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 114.0) internal successors, (2622), 23 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:35,001 INFO L175 Difference]: Start difference. First operand has 168 places, 148 transitions, 720 flow. Second operand 22 states and 1781 transitions. [2022-11-21 16:35:35,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 244 transitions, 2226 flow [2022-11-21 16:35:35,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 244 transitions, 1990 flow, removed 103 selfloop flow, removed 18 redundant places. [2022-11-21 16:35:35,037 INFO L231 Difference]: Finished difference. Result has 175 places, 167 transitions, 1057 flow [2022-11-21 16:35:35,037 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1057, PETRI_PLACES=175, PETRI_TRANSITIONS=167} [2022-11-21 16:35:35,038 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 58 predicate places. [2022-11-21 16:35:35,038 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 167 transitions, 1057 flow [2022-11-21 16:35:35,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 77.63636363636364) internal successors, (854), 11 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:35,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:35,040 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:35,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:35:35,040 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1564219262, now seen corresponding path program 3 times [2022-11-21 16:35:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:35,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727340789] [2022-11-21 16:35:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:35,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:37,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:37,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727340789] [2022-11-21 16:35:37,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727340789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:37,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:37,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:35:37,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354941932] [2022-11-21 16:35:37,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:37,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 16:35:37,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 16:35:37,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:35:37,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 114 [2022-11-21 16:35:37,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 167 transitions, 1057 flow. Second operand has 17 states, 17 states have (on average 75.88235294117646) internal successors, (1290), 17 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:37,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:37,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 114 [2022-11-21 16:35:37,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:38,801 INFO L130 PetriNetUnfolder]: 299/827 cut-off events. [2022-11-21 16:35:38,801 INFO L131 PetriNetUnfolder]: For 11479/14740 co-relation queries the response was YES. [2022-11-21 16:35:38,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4943 conditions, 827 events. 299/827 cut-off events. For 11479/14740 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 4710 event pairs, 64 based on Foata normal form. 75/823 useless extension candidates. Maximal degree in co-relation 4824. Up to 387 conditions per place. [2022-11-21 16:35:38,814 INFO L137 encePairwiseOnDemand]: 94/114 looper letters, 78 selfloop transitions, 38 changer transitions 33/224 dead transitions. [2022-11-21 16:35:38,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 224 transitions, 2080 flow [2022-11-21 16:35:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:35:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-21 16:35:38,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1262 transitions. [2022-11-21 16:35:38,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6918859649122807 [2022-11-21 16:35:38,819 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1262 transitions. [2022-11-21 16:35:38,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1262 transitions. [2022-11-21 16:35:38,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:38,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1262 transitions. [2022-11-21 16:35:38,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.875) internal successors, (1262), 16 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:38,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 114.0) internal successors, (1938), 17 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:38,831 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 114.0) internal successors, (1938), 17 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:38,831 INFO L175 Difference]: Start difference. First operand has 175 places, 167 transitions, 1057 flow. Second operand 16 states and 1262 transitions. [2022-11-21 16:35:38,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 224 transitions, 2080 flow [2022-11-21 16:35:38,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 224 transitions, 1847 flow, removed 106 selfloop flow, removed 16 redundant places. [2022-11-21 16:35:38,871 INFO L231 Difference]: Finished difference. Result has 170 places, 184 transitions, 1196 flow [2022-11-21 16:35:38,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1196, PETRI_PLACES=170, PETRI_TRANSITIONS=184} [2022-11-21 16:35:38,873 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 53 predicate places. [2022-11-21 16:35:38,873 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 184 transitions, 1196 flow [2022-11-21 16:35:38,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 75.88235294117646) internal successors, (1290), 17 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:38,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:38,875 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:38,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:35:38,876 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:38,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash -159683602, now seen corresponding path program 4 times [2022-11-21 16:35:38,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:38,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727152742] [2022-11-21 16:35:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:41,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:41,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727152742] [2022-11-21 16:35:41,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727152742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:41,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:41,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:35:41,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301857681] [2022-11-21 16:35:41,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:41,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:35:41,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:41,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:35:41,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:35:41,556 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 114 [2022-11-21 16:35:41,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 184 transitions, 1196 flow. Second operand has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:41,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:41,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 114 [2022-11-21 16:35:41,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:43,219 INFO L130 PetriNetUnfolder]: 245/711 cut-off events. [2022-11-21 16:35:43,219 INFO L131 PetriNetUnfolder]: For 4195/7185 co-relation queries the response was YES. [2022-11-21 16:35:43,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3585 conditions, 711 events. 245/711 cut-off events. For 4195/7185 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3911 event pairs, 14 based on Foata normal form. 60/720 useless extension candidates. Maximal degree in co-relation 3487. Up to 207 conditions per place. [2022-11-21 16:35:43,229 INFO L137 encePairwiseOnDemand]: 102/114 looper letters, 96 selfloop transitions, 37 changer transitions 16/228 dead transitions. [2022-11-21 16:35:43,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 228 transitions, 2077 flow [2022-11-21 16:35:43,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:35:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 16:35:43,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1242 transitions. [2022-11-21 16:35:43,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7263157894736842 [2022-11-21 16:35:43,232 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1242 transitions. [2022-11-21 16:35:43,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1242 transitions. [2022-11-21 16:35:43,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:43,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1242 transitions. [2022-11-21 16:35:43,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 82.8) internal successors, (1242), 15 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:43,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 114.0) internal successors, (1824), 16 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:43,239 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 114.0) internal successors, (1824), 16 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:43,240 INFO L175 Difference]: Start difference. First operand has 170 places, 184 transitions, 1196 flow. Second operand 15 states and 1242 transitions. [2022-11-21 16:35:43,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 228 transitions, 2077 flow [2022-11-21 16:35:43,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 228 transitions, 1974 flow, removed 47 selfloop flow, removed 8 redundant places. [2022-11-21 16:35:43,265 INFO L231 Difference]: Finished difference. Result has 179 places, 188 transitions, 1309 flow [2022-11-21 16:35:43,265 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=1161, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1309, PETRI_PLACES=179, PETRI_TRANSITIONS=188} [2022-11-21 16:35:43,266 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 62 predicate places. [2022-11-21 16:35:43,266 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 188 transitions, 1309 flow [2022-11-21 16:35:43,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:43,267 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:43,267 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:43,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:35:43,268 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:43,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:43,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1467418180, now seen corresponding path program 1 times [2022-11-21 16:35:43,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:43,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624477870] [2022-11-21 16:35:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:43,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:45,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:45,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624477870] [2022-11-21 16:35:45,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624477870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:45,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:45,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-21 16:35:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802607795] [2022-11-21 16:35:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:45,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-21 16:35:45,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:45,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-21 16:35:45,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:35:45,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 114 [2022-11-21 16:35:45,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 188 transitions, 1309 flow. Second operand has 19 states, 19 states have (on average 77.52631578947368) internal successors, (1473), 19 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:45,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:45,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 114 [2022-11-21 16:35:45,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:47,004 INFO L130 PetriNetUnfolder]: 451/1133 cut-off events. [2022-11-21 16:35:47,005 INFO L131 PetriNetUnfolder]: For 6190/6638 co-relation queries the response was YES. [2022-11-21 16:35:47,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5563 conditions, 1133 events. 451/1133 cut-off events. For 6190/6638 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7114 event pairs, 68 based on Foata normal form. 38/1149 useless extension candidates. Maximal degree in co-relation 5447. Up to 364 conditions per place. [2022-11-21 16:35:47,017 INFO L137 encePairwiseOnDemand]: 95/114 looper letters, 88 selfloop transitions, 37 changer transitions 89/279 dead transitions. [2022-11-21 16:35:47,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 279 transitions, 2753 flow [2022-11-21 16:35:47,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 16:35:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-21 16:35:47,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1799 transitions. [2022-11-21 16:35:47,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.717304625199362 [2022-11-21 16:35:47,022 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1799 transitions. [2022-11-21 16:35:47,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1799 transitions. [2022-11-21 16:35:47,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:47,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1799 transitions. [2022-11-21 16:35:47,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 81.77272727272727) internal successors, (1799), 22 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:47,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 114.0) internal successors, (2622), 23 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:47,032 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 114.0) internal successors, (2622), 23 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:47,032 INFO L175 Difference]: Start difference. First operand has 179 places, 188 transitions, 1309 flow. Second operand 22 states and 1799 transitions. [2022-11-21 16:35:47,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 279 transitions, 2753 flow [2022-11-21 16:35:47,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 279 transitions, 2643 flow, removed 44 selfloop flow, removed 11 redundant places. [2022-11-21 16:35:47,065 INFO L231 Difference]: Finished difference. Result has 195 places, 166 transitions, 1184 flow [2022-11-21 16:35:47,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1184, PETRI_PLACES=195, PETRI_TRANSITIONS=166} [2022-11-21 16:35:47,066 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 78 predicate places. [2022-11-21 16:35:47,067 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 166 transitions, 1184 flow [2022-11-21 16:35:47,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 77.52631578947368) internal successors, (1473), 19 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:47,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:47,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:47,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:35:47,068 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1158279564, now seen corresponding path program 2 times [2022-11-21 16:35:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:47,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373160803] [2022-11-21 16:35:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:49,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:49,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373160803] [2022-11-21 16:35:49,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373160803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:49,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:49,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-21 16:35:49,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795697322] [2022-11-21 16:35:49,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:49,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 16:35:49,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:49,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 16:35:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:35:49,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 114 [2022-11-21 16:35:49,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 166 transitions, 1184 flow. Second operand has 20 states, 20 states have (on average 73.65) internal successors, (1473), 20 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:49,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:49,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 114 [2022-11-21 16:35:49,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:51,090 INFO L130 PetriNetUnfolder]: 464/1187 cut-off events. [2022-11-21 16:35:51,090 INFO L131 PetriNetUnfolder]: For 8390/9118 co-relation queries the response was YES. [2022-11-21 16:35:51,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6114 conditions, 1187 events. 464/1187 cut-off events. For 8390/9118 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7801 event pairs, 80 based on Foata normal form. 67/1204 useless extension candidates. Maximal degree in co-relation 5984. Up to 379 conditions per place. [2022-11-21 16:35:51,109 INFO L137 encePairwiseOnDemand]: 93/114 looper letters, 92 selfloop transitions, 65 changer transitions 54/272 dead transitions. [2022-11-21 16:35:51,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 272 transitions, 2843 flow [2022-11-21 16:35:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-21 16:35:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-21 16:35:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1944 transitions. [2022-11-21 16:35:51,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6821052631578948 [2022-11-21 16:35:51,115 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1944 transitions. [2022-11-21 16:35:51,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1944 transitions. [2022-11-21 16:35:51,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:51,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1944 transitions. [2022-11-21 16:35:51,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 77.76) internal successors, (1944), 25 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:51,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 114.0) internal successors, (2964), 26 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:51,129 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 114.0) internal successors, (2964), 26 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:51,129 INFO L175 Difference]: Start difference. First operand has 195 places, 166 transitions, 1184 flow. Second operand 25 states and 1944 transitions. [2022-11-21 16:35:51,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 272 transitions, 2843 flow [2022-11-21 16:35:51,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 272 transitions, 2600 flow, removed 102 selfloop flow, removed 20 redundant places. [2022-11-21 16:35:51,182 INFO L231 Difference]: Finished difference. Result has 201 places, 182 transitions, 1524 flow [2022-11-21 16:35:51,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1524, PETRI_PLACES=201, PETRI_TRANSITIONS=182} [2022-11-21 16:35:51,184 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 84 predicate places. [2022-11-21 16:35:51,184 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 182 transitions, 1524 flow [2022-11-21 16:35:51,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.65) internal successors, (1473), 20 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:51,186 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:51,186 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:51,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:35:51,186 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-21 16:35:51,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:51,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1730533608, now seen corresponding path program 3 times [2022-11-21 16:35:51,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:51,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134388345] [2022-11-21 16:35:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:51,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:35:53,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:53,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134388345] [2022-11-21 16:35:53,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134388345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:53,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:53,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 16:35:53,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983842792] [2022-11-21 16:35:53,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:53,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:35:53,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:53,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:35:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:35:53,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 114 [2022-11-21 16:35:53,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 182 transitions, 1524 flow. Second operand has 15 states, 15 states have (on average 81.8) internal successors, (1227), 15 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:53,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:53,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 114 [2022-11-21 16:35:53,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:53,989 INFO L130 PetriNetUnfolder]: 200/609 cut-off events. [2022-11-21 16:35:53,989 INFO L131 PetriNetUnfolder]: For 4451/11580 co-relation queries the response was YES. [2022-11-21 16:35:53,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3624 conditions, 609 events. 200/609 cut-off events. For 4451/11580 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 3430 event pairs, 31 based on Foata normal form. 78/636 useless extension candidates. Maximal degree in co-relation 3579. Up to 182 conditions per place. [2022-11-21 16:35:53,995 INFO L137 encePairwiseOnDemand]: 101/114 looper letters, 0 selfloop transitions, 0 changer transitions 206/206 dead transitions. [2022-11-21 16:35:53,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 206 transitions, 2105 flow [2022-11-21 16:35:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:35:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 16:35:53,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1258 transitions. [2022-11-21 16:35:53,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.735672514619883 [2022-11-21 16:35:53,999 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1258 transitions. [2022-11-21 16:35:53,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1258 transitions. [2022-11-21 16:35:54,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:54,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1258 transitions. [2022-11-21 16:35:54,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 83.86666666666666) internal successors, (1258), 15 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:54,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 114.0) internal successors, (1824), 16 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:54,007 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 114.0) internal successors, (1824), 16 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:54,008 INFO L175 Difference]: Start difference. First operand has 201 places, 182 transitions, 1524 flow. Second operand 15 states and 1258 transitions. [2022-11-21 16:35:54,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 206 transitions, 2105 flow [2022-11-21 16:35:54,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 206 transitions, 1970 flow, removed 54 selfloop flow, removed 17 redundant places. [2022-11-21 16:35:54,040 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2022-11-21 16:35:54,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=1393, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2022-11-21 16:35:54,042 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, 70 predicate places. [2022-11-21 16:35:54,042 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2022-11-21 16:35:54,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 81.8) internal successors, (1227), 15 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:54,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-11-21 16:35:54,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-21 16:35:54,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-11-21 16:35:54,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-11-21 16:35:54,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-11-21 16:35:54,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-11-21 16:35:54,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-21 16:35:54,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:35:54,049 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1] [2022-11-21 16:35:54,056 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:35:54,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:35:54,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:35:54 BasicIcfg [2022-11-21 16:35:54,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:35:54,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:35:54,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:35:54,064 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:35:54,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:35:11" (3/4) ... [2022-11-21 16:35:54,068 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:35:54,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:35:54,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:35:54,083 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-11-21 16:35:54,084 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 16:35:54,084 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:35:54,084 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:35:54,151 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:35:54,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:35:54,152 INFO L158 Benchmark]: Toolchain (without parser) took 45089.96ms. Allocated memory was 176.2MB in the beginning and 645.9MB in the end (delta: 469.8MB). Free memory was 144.2MB in the beginning and 331.2MB in the end (delta: -187.0MB). Peak memory consumption was 282.9MB. Max. memory is 16.1GB. [2022-11-21 16:35:54,152 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 97.6MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:35:54,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.81ms. Allocated memory is still 176.2MB. Free memory was 144.2MB in the beginning and 124.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:35:54,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.23ms. Allocated memory is still 176.2MB. Free memory was 124.8MB in the beginning and 121.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:35:54,154 INFO L158 Benchmark]: Boogie Preprocessor took 76.82ms. Allocated memory is still 176.2MB. Free memory was 121.4MB in the beginning and 118.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:35:54,154 INFO L158 Benchmark]: RCFGBuilder took 1304.36ms. Allocated memory is still 176.2MB. Free memory was 118.3MB in the beginning and 131.6MB in the end (delta: -13.3MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2022-11-21 16:35:54,156 INFO L158 Benchmark]: TraceAbstraction took 42702.27ms. Allocated memory was 176.2MB in the beginning and 645.9MB in the end (delta: 469.8MB). Free memory was 130.5MB in the beginning and 335.4MB in the end (delta: -204.9MB). Peak memory consumption was 265.9MB. Max. memory is 16.1GB. [2022-11-21 16:35:54,156 INFO L158 Benchmark]: Witness Printer took 87.69ms. Allocated memory is still 645.9MB. Free memory was 335.4MB in the beginning and 331.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:35:54,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 97.6MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.81ms. Allocated memory is still 176.2MB. Free memory was 144.2MB in the beginning and 124.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.23ms. Allocated memory is still 176.2MB. Free memory was 124.8MB in the beginning and 121.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.82ms. Allocated memory is still 176.2MB. Free memory was 121.4MB in the beginning and 118.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1304.36ms. Allocated memory is still 176.2MB. Free memory was 118.3MB in the beginning and 131.6MB in the end (delta: -13.3MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * TraceAbstraction took 42702.27ms. Allocated memory was 176.2MB in the beginning and 645.9MB in the end (delta: 469.8MB). Free memory was 130.5MB in the beginning and 335.4MB in the end (delta: -204.9MB). Peak memory consumption was 265.9MB. Max. memory is 16.1GB. * Witness Printer took 87.69ms. Allocated memory is still 645.9MB. Free memory was 335.4MB in the beginning and 331.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 136 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 42.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 18.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1228 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1228 mSDsluCounter, 1349 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1167 mSDsCounter, 392 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3998 IncrementalHoareTripleChecker+Invalid, 4390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 392 mSolverCounterUnsat, 182 mSDtfsCounter, 3998 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1372 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1524occurred in iteration=12, InterpolantAutomatonStates: 211, 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: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 22.6s InterpolantComputationTime, 1084 NumberOfCodeBlocks, 1084 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1071 ConstructedInterpolants, 0 QuantifiedInterpolants, 11053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:35:54,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90138614-aff0-446c-ad18-da6c30b43773/bin/uautomizer-vX5HgA9Q3a/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