./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/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_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/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_c1ec6645-bba0-47a8-bb30-65151ea7ac12/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 062c7418109a213aa13d25a99437d8241cca4f6492c123259890838dc94aff90 --- 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 13:52:48,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:52:48,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:52:48,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:52:48,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:52:48,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:52:48,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:52:48,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:52:48,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:52:48,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:52:48,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:52:48,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:52:48,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:52:48,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:52:48,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:52:48,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:52:48,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:52:48,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:52:48,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:52:48,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:52:48,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:52:48,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:52:48,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:52:48,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:52:48,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:52:48,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:52:48,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:52:48,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:52:48,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:52:48,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:52:48,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:52:48,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:52:48,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:52:48,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:52:48,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:52:48,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:52:48,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:52:48,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:52:48,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:52:48,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:52:48,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:52:48,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:52:49,022 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:52:49,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:52:49,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:52:49,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:52:49,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:52:49,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:52:49,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:52:49,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:52:49,026 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:52:49,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:52:49,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:52:49,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:52:49,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:52:49,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:52:49,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:52:49,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:52:49,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:52:49,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:52:49,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:52:49,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:52:49,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:52:49,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:52:49,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:52:49,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:52:49,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:52:49,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:52:49,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:52:49,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:52:49,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:52:49,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:52:49,032 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:52:49,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:52:49,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:52:49,032 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_c1ec6645-bba0-47a8-bb30-65151ea7ac12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062c7418109a213aa13d25a99437d8241cca4f6492c123259890838dc94aff90 [2022-11-21 13:52:49,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:52:49,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:52:49,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:52:49,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:52:49,412 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:52:49,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/systemc/transmitter.12.cil.c [2022-11-21 13:52:52,439 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:52:52,744 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:52:52,745 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/sv-benchmarks/c/systemc/transmitter.12.cil.c [2022-11-21 13:52:52,774 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/data/4face395f/d2f152f6ed2643fea9bafc4c6039e829/FLAG38f60bf82 [2022-11-21 13:52:52,791 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/data/4face395f/d2f152f6ed2643fea9bafc4c6039e829 [2022-11-21 13:52:52,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:52:52,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:52:52,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:52:52,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:52:52,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:52:52,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:52" (1/1) ... [2022-11-21 13:52:52,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9c57f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:52, skipping insertion in model container [2022-11-21 13:52:52,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:52" (1/1) ... [2022-11-21 13:52:52,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:52:52,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:52:53,016 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_c1ec6645-bba0-47a8-bb30-65151ea7ac12/sv-benchmarks/c/systemc/transmitter.12.cil.c[706,719] [2022-11-21 13:52:53,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:52:53,185 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:52:53,208 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_c1ec6645-bba0-47a8-bb30-65151ea7ac12/sv-benchmarks/c/systemc/transmitter.12.cil.c[706,719] [2022-11-21 13:52:53,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:52:53,303 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:52:53,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53 WrapperNode [2022-11-21 13:52:53,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:52:53,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:52:53,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:52:53,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:52:53,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,378 INFO L138 Inliner]: procedures = 52, calls = 66, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 834 [2022-11-21 13:52:53,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:52:53,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:52:53,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:52:53,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:52:53,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,427 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:52:53,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:52:53,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:52:53,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:52:53,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (1/1) ... [2022-11-21 13:52:53,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:52:53,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:52:53,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:52:53,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1ec6645-bba0-47a8-bb30-65151ea7ac12/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:52:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:52:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-21 13:52:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-21 13:52:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-21 13:52:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-21 13:52:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-21 13:52:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-21 13:52:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-21 13:52:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-21 13:52:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-21 13:52:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-21 13:52:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-21 13:52:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-21 13:52:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:52:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:52:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:52:53,704 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:52:53,707 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:52:54,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:52:54,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:52:54,858 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-21 13:52:54,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:52:54 BoogieIcfgContainer [2022-11-21 13:52:54,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:52:54,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:52:54,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:52:54,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:52:54,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:52:52" (1/3) ... [2022-11-21 13:52:54,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf95329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:52:54, skipping insertion in model container [2022-11-21 13:52:54,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:53" (2/3) ... [2022-11-21 13:52:54,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf95329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:52:54, skipping insertion in model container [2022-11-21 13:52:54,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:52:54" (3/3) ... [2022-11-21 13:52:54,878 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.12.cil.c [2022-11-21 13:52:54,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:52:54,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:52:54,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:52:54,992 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;@7e1825d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:52:54,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:52:55,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 378 states, 345 states have (on average 1.663768115942029) internal successors, (574), 347 states have internal predecessors, (574), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-11-21 13:52:55,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:52:55,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:52:55,042 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:55,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:52:55,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:52:55,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1515639638, now seen corresponding path program 1 times [2022-11-21 13:52:55,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:52:55,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756169484] [2022-11-21 13:52:55,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:52:55,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:52:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:52:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:52:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:52:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:55,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:52:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:52:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:55,858 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 13:52:55,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:52:55,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756169484] [2022-11-21 13:52:55,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756169484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:52:55,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:52:55,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:52:55,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5773575] [2022-11-21 13:52:55,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:52:55,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:52:55,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:52:55,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:52:55,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:52:55,906 INFO L87 Difference]: Start difference. First operand has 378 states, 345 states have (on average 1.663768115942029) internal successors, (574), 347 states have internal predecessors, (574), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:52:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:52:58,633 INFO L93 Difference]: Finished difference Result 883 states and 1467 transitions. [2022-11-21 13:52:58,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:52:58,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:52:58,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:52:58,666 INFO L225 Difference]: With dead ends: 883 [2022-11-21 13:52:58,667 INFO L226 Difference]: Without dead ends: 513 [2022-11-21 13:52:58,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 13:52:58,687 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1018 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:52:58,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 736 Invalid, 1068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 13:52:58,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-11-21 13:52:58,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 373. [2022-11-21 13:52:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 341 states have (on average 1.5689149560117301) internal successors, (535), 342 states have internal predecessors, (535), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-11-21 13:52:58,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 585 transitions. [2022-11-21 13:52:58,804 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 585 transitions. Word has length 187 [2022-11-21 13:52:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:52:58,805 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 585 transitions. [2022-11-21 13:52:58,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:52:58,806 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 585 transitions. [2022-11-21 13:52:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:52:58,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:52:58,811 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:58,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:52:58,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:52:58,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:52:58,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1948674024, now seen corresponding path program 1 times [2022-11-21 13:52:58,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:52:58,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765488454] [2022-11-21 13:52:58,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:52:58,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:52:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:52:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:59,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:52:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:52:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:52:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:52:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:52:59,311 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 13:52:59,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:52:59,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765488454] [2022-11-21 13:52:59,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765488454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:52:59,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:52:59,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:52:59,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266634409] [2022-11-21 13:52:59,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:52:59,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:52:59,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:52:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:52:59,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:52:59,324 INFO L87 Difference]: Start difference. First operand 373 states and 585 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:53:03,592 INFO L93 Difference]: Finished difference Result 1376 states and 2217 transitions. [2022-11-21 13:53:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 13:53:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:53:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:53:03,601 INFO L225 Difference]: With dead ends: 1376 [2022-11-21 13:53:03,601 INFO L226 Difference]: Without dead ends: 1023 [2022-11-21 13:53:03,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:53:03,605 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1535 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-21 13:53:03,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 1277 Invalid, 2425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [105 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-21 13:53:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-11-21 13:53:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 743. [2022-11-21 13:53:03,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 684 states have (on average 1.5789473684210527) internal successors, (1080), 686 states have internal predecessors, (1080), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2022-11-21 13:53:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1173 transitions. [2022-11-21 13:53:03,753 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1173 transitions. Word has length 187 [2022-11-21 13:53:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:53:03,754 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1173 transitions. [2022-11-21 13:53:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1173 transitions. [2022-11-21 13:53:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:53:03,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:53:03,757 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:03,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:53:03,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:53:03,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash -319262089, now seen corresponding path program 1 times [2022-11-21 13:53:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:03,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576733827] [2022-11-21 13:53:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:53:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:53:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:53:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:53:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:04,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:53:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:04,120 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 13:53:04,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:04,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576733827] [2022-11-21 13:53:04,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576733827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:04,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:04,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:53:04,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958518506] [2022-11-21 13:53:04,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:04,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:53:04,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:04,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:53:04,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:53:04,127 INFO L87 Difference]: Start difference. First operand 743 states and 1173 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:53:10,616 INFO L93 Difference]: Finished difference Result 2453 states and 3920 transitions. [2022-11-21 13:53:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 13:53:10,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:53:10,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:53:10,634 INFO L225 Difference]: With dead ends: 2453 [2022-11-21 13:53:10,634 INFO L226 Difference]: Without dead ends: 1730 [2022-11-21 13:53:10,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:53:10,643 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 1690 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 4580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-21 13:53:10,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 2427 Invalid, 4580 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 4517 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-21 13:53:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2022-11-21 13:53:10,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1087. [2022-11-21 13:53:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1001 states have (on average 1.5714285714285714) internal successors, (1573), 1004 states have internal predecessors, (1573), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2022-11-21 13:53:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1708 transitions. [2022-11-21 13:53:10,848 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1708 transitions. Word has length 187 [2022-11-21 13:53:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:53:10,849 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 1708 transitions. [2022-11-21 13:53:10,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:10,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1708 transitions. [2022-11-21 13:53:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:53:10,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:53:10,853 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:10,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:53:10,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:53:10,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:10,855 INFO L85 PathProgramCache]: Analyzing trace with hash -2043870411, now seen corresponding path program 1 times [2022-11-21 13:53:10,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:10,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766228049] [2022-11-21 13:53:10,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:10,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:53:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:53:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:53:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:53:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:53:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:11,209 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 13:53:11,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:11,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766228049] [2022-11-21 13:53:11,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766228049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:11,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:11,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:53:11,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872133545] [2022-11-21 13:53:11,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:11,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:53:11,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:53:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:53:11,212 INFO L87 Difference]: Start difference. First operand 1087 states and 1708 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:17,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:53:17,714 INFO L93 Difference]: Finished difference Result 3779 states and 6029 transitions. [2022-11-21 13:53:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 13:53:17,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:53:17,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:53:17,731 INFO L225 Difference]: With dead ends: 3779 [2022-11-21 13:53:17,731 INFO L226 Difference]: Without dead ends: 2712 [2022-11-21 13:53:17,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:53:17,746 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 1688 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4513 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:53:17,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 2425 Invalid, 4578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 4513 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-21 13:53:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-11-21 13:53:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 1776. [2022-11-21 13:53:18,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1636 states have (on average 1.56479217603912) internal successors, (2560), 1641 states have internal predecessors, (2560), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2022-11-21 13:53:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2783 transitions. [2022-11-21 13:53:18,095 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2783 transitions. Word has length 187 [2022-11-21 13:53:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:53:18,095 INFO L495 AbstractCegarLoop]: Abstraction has 1776 states and 2783 transitions. [2022-11-21 13:53:18,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2783 transitions. [2022-11-21 13:53:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:53:18,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:53:18,102 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:18,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:53:18,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:53:18,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:18,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1545313609, now seen corresponding path program 1 times [2022-11-21 13:53:18,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:18,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476518935] [2022-11-21 13:53:18,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:18,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:53:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:18,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:53:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:53:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:53:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:53:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:18,454 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 13:53:18,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:18,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476518935] [2022-11-21 13:53:18,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476518935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:18,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:18,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:53:18,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550303411] [2022-11-21 13:53:18,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:18,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:53:18,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:18,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:53:18,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:53:18,457 INFO L87 Difference]: Start difference. First operand 1776 states and 2783 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:24,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:53:24,840 INFO L93 Difference]: Finished difference Result 6330 states and 10060 transitions. [2022-11-21 13:53:24,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 13:53:24,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:53:24,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:53:24,865 INFO L225 Difference]: With dead ends: 6330 [2022-11-21 13:53:24,865 INFO L226 Difference]: Without dead ends: 4574 [2022-11-21 13:53:24,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:53:24,872 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1805 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 4104 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 4201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-21 13:53:24,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 1595 Invalid, 4201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4104 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-21 13:53:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2022-11-21 13:53:25,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 3155. [2022-11-21 13:53:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3155 states, 2907 states have (on average 1.5596835225318197) internal successors, (4534), 2916 states have internal predecessors, (4534), 185 states have call successors, (185), 54 states have call predecessors, (185), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2022-11-21 13:53:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 4939 transitions. [2022-11-21 13:53:25,310 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 4939 transitions. Word has length 187 [2022-11-21 13:53:25,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:53:25,311 INFO L495 AbstractCegarLoop]: Abstraction has 3155 states and 4939 transitions. [2022-11-21 13:53:25,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 4939 transitions. [2022-11-21 13:53:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:53:25,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:53:25,318 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:25,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:53:25,318 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:53:25,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:25,319 INFO L85 PathProgramCache]: Analyzing trace with hash -975041803, now seen corresponding path program 1 times [2022-11-21 13:53:25,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:25,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320973923] [2022-11-21 13:53:25,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:25,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:53:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:53:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:25,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:53:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:25,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:53:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:25,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:53:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:25,622 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 13:53:25,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:25,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320973923] [2022-11-21 13:53:25,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320973923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:25,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:25,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:53:25,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048270757] [2022-11-21 13:53:25,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:25,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:53:25,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:25,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:53:25,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:53:25,626 INFO L87 Difference]: Start difference. First operand 3155 states and 4939 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:32,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:53:32,646 INFO L93 Difference]: Finished difference Result 11424 states and 18126 transitions. [2022-11-21 13:53:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 13:53:32,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:53:32,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:53:32,684 INFO L225 Difference]: With dead ends: 11424 [2022-11-21 13:53:32,684 INFO L226 Difference]: Without dead ends: 8289 [2022-11-21 13:53:32,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:53:32,695 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 1686 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4471 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-21 13:53:32,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 2425 Invalid, 4536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4471 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-21 13:53:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8289 states. [2022-11-21 13:53:33,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8289 to 5927. [2022-11-21 13:53:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 5463 states have (on average 1.5570199524071022) internal successors, (8506), 5480 states have internal predecessors, (8506), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2022-11-21 13:53:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 9293 transitions. [2022-11-21 13:53:33,661 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 9293 transitions. Word has length 187 [2022-11-21 13:53:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:53:33,663 INFO L495 AbstractCegarLoop]: Abstraction has 5927 states and 9293 transitions. [2022-11-21 13:53:33,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 9293 transitions. [2022-11-21 13:53:33,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:53:33,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:53:33,673 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:33,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:53:33,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:53:33,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1761039693, now seen corresponding path program 1 times [2022-11-21 13:53:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:33,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594112628] [2022-11-21 13:53:33,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:53:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:53:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:53:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:53:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:33,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:53:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:33,989 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 13:53:33,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:33,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594112628] [2022-11-21 13:53:33,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594112628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:33,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:33,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:53:33,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435983921] [2022-11-21 13:53:33,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:33,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:53:33,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:33,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:53:33,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:53:33,993 INFO L87 Difference]: Start difference. First operand 5927 states and 9293 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:53:41,738 INFO L93 Difference]: Finished difference Result 21630 states and 34350 transitions. [2022-11-21 13:53:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 13:53:41,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:53:41,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:53:41,807 INFO L225 Difference]: With dead ends: 21630 [2022-11-21 13:53:41,807 INFO L226 Difference]: Without dead ends: 15723 [2022-11-21 13:53:41,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:53:41,831 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 1685 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4458 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-21 13:53:41,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 2425 Invalid, 4523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4458 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-21 13:53:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15723 states. [2022-11-21 13:53:43,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15723 to 11484. [2022-11-21 13:53:43,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11484 states, 10588 states have (on average 1.555345674348319) internal successors, (16468), 10621 states have internal predecessors, (16468), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2022-11-21 13:53:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11484 states to 11484 states and 18073 transitions. [2022-11-21 13:53:43,754 INFO L78 Accepts]: Start accepts. Automaton has 11484 states and 18073 transitions. Word has length 187 [2022-11-21 13:53:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:53:43,755 INFO L495 AbstractCegarLoop]: Abstraction has 11484 states and 18073 transitions. [2022-11-21 13:53:43,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 11484 states and 18073 transitions. [2022-11-21 13:53:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:53:43,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:53:43,775 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:43,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:53:43,776 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:53:43,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:43,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1093657803, now seen corresponding path program 1 times [2022-11-21 13:53:43,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:43,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910416520] [2022-11-21 13:53:43,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:43,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:43,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:53:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:53:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:53:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:53:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:53:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:44,061 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 13:53:44,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:44,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910416520] [2022-11-21 13:53:44,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910416520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:44,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:44,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:53:44,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353499377] [2022-11-21 13:53:44,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:44,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:53:44,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:44,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:53:44,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:53:44,064 INFO L87 Difference]: Start difference. First operand 11484 states and 18073 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:48,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:53:48,262 INFO L93 Difference]: Finished difference Result 27246 states and 43532 transitions. [2022-11-21 13:53:48,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:53:48,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:53:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:53:48,320 INFO L225 Difference]: With dead ends: 27246 [2022-11-21 13:53:48,321 INFO L226 Difference]: Without dead ends: 15782 [2022-11-21 13:53:48,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:53:48,358 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1290 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-21 13:53:48,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 1022 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-21 13:53:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15782 states. [2022-11-21 13:53:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15782 to 11484. [2022-11-21 13:53:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11484 states, 10588 states have (on average 1.5522289384208539) internal successors, (16435), 10621 states have internal predecessors, (16435), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2022-11-21 13:53:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11484 states to 11484 states and 18040 transitions. [2022-11-21 13:53:50,290 INFO L78 Accepts]: Start accepts. Automaton has 11484 states and 18040 transitions. Word has length 187 [2022-11-21 13:53:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:53:50,291 INFO L495 AbstractCegarLoop]: Abstraction has 11484 states and 18040 transitions. [2022-11-21 13:53:50,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:53:50,292 INFO L276 IsEmpty]: Start isEmpty. Operand 11484 states and 18040 transitions. [2022-11-21 13:53:50,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:53:50,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:53:50,312 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:50,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:53:50,313 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:53:50,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:50,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1006080627, now seen corresponding path program 1 times [2022-11-21 13:53:50,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:50,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081788358] [2022-11-21 13:53:50,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:50,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:53:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:53:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:53:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:53:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:53:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:50,609 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 13:53:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:50,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081788358] [2022-11-21 13:53:50,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081788358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:50,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:50,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:53:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63352781] [2022-11-21 13:53:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:50,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:53:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:50,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:53:50,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:53:50,614 INFO L87 Difference]: Start difference. First operand 11484 states and 18040 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:54:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:01,020 INFO L93 Difference]: Finished difference Result 42007 states and 66756 transitions. [2022-11-21 13:54:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 13:54:01,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:54:01,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:01,137 INFO L225 Difference]: With dead ends: 42007 [2022-11-21 13:54:01,137 INFO L226 Difference]: Without dead ends: 30543 [2022-11-21 13:54:01,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:54:01,176 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 1677 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4420 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:01,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 2425 Invalid, 4485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4420 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-21 13:54:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30543 states. [2022-11-21 13:54:04,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30543 to 22662. [2022-11-21 13:54:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22662 states, 20902 states have (on average 1.5504257965744905) internal successors, (32407), 20967 states have internal predecessors, (32407), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 454 states have return successors, (2098), 1368 states have call predecessors, (2098), 1305 states have call successors, (2098) [2022-11-21 13:54:04,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22662 states to 22662 states and 35810 transitions. [2022-11-21 13:54:04,313 INFO L78 Accepts]: Start accepts. Automaton has 22662 states and 35810 transitions. Word has length 187 [2022-11-21 13:54:04,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:04,314 INFO L495 AbstractCegarLoop]: Abstraction has 22662 states and 35810 transitions. [2022-11-21 13:54:04,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:54:04,314 INFO L276 IsEmpty]: Start isEmpty. Operand 22662 states and 35810 transitions. [2022-11-21 13:54:04,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:54:04,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:04,345 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:04,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 13:54:04,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:54:04,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:04,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1350908789, now seen corresponding path program 1 times [2022-11-21 13:54:04,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:04,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394976169] [2022-11-21 13:54:04,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:04,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:54:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:54:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:54:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:04,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:54:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:54:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:04,625 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 13:54:04,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:04,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394976169] [2022-11-21 13:54:04,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394976169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:04,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:04,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:54:04,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358184109] [2022-11-21 13:54:04,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:04,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:54:04,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:04,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:54:04,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:54:04,628 INFO L87 Difference]: Start difference. First operand 22662 states and 35810 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:54:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:19,301 INFO L93 Difference]: Finished difference Result 82831 states and 132444 transitions. [2022-11-21 13:54:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 13:54:19,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2022-11-21 13:54:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:19,536 INFO L225 Difference]: With dead ends: 82831 [2022-11-21 13:54:19,536 INFO L226 Difference]: Without dead ends: 60189 [2022-11-21 13:54:19,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:54:19,598 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 1676 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4407 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:19,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 2425 Invalid, 4472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4407 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-21 13:54:19,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60189 states. [2022-11-21 13:54:26,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60189 to 45079. [2022-11-21 13:54:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45079 states, 41591 states have (on average 1.5493977062345219) internal successors, (64441), 41720 states have internal predecessors, (64441), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 902 states have return successors, (4900), 2712 states have call predecessors, (4900), 2585 states have call successors, (4900) [2022-11-21 13:54:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45079 states to 45079 states and 71926 transitions. [2022-11-21 13:54:26,251 INFO L78 Accepts]: Start accepts. Automaton has 45079 states and 71926 transitions. Word has length 187 [2022-11-21 13:54:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:26,251 INFO L495 AbstractCegarLoop]: Abstraction has 45079 states and 71926 transitions. [2022-11-21 13:54:26,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 13:54:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 45079 states and 71926 transitions. [2022-11-21 13:54:26,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:54:26,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:26,465 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:26,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 13:54:26,465 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:54:26,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:26,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1963103693, now seen corresponding path program 1 times [2022-11-21 13:54:26,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:26,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749035910] [2022-11-21 13:54:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:26,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:54:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:54:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:54:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:26,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:54:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:26,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 13:54:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:26,757 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 13:54:26,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:26,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749035910] [2022-11-21 13:54:26,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749035910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:26,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:26,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:54:26,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024674536] [2022-11-21 13:54:26,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:26,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:54:26,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:26,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:54:26,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:54:26,760 INFO L87 Difference]: Start difference. First operand 45079 states and 71926 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)