./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:47:01,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:47:01,100 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:47:01,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:47:01,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:47:01,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:47:01,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:47:01,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:47:01,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:47:01,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:47:01,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:47:01,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:47:01,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:47:01,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:47:01,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:47:01,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:47:01,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:47:01,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:47:01,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:47:01,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:47:01,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:47:01,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:47:01,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:47:01,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:47:01,141 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:47:01,142 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:47:01,142 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:47:01,142 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:47:01,143 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:47:01,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:47:01,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:47:01,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:47:01,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:47:01,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:47:01,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:47:01,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:47:01,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:47:01,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:47:01,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:47:01,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:47:01,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:47:01,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:47:01,151 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 [2024-11-08 16:47:01,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:47:01,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:47:01,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:47:01,480 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:47:01,480 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:47:01,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-08 16:47:03,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:47:03,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:47:03,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-08 16:47:03,970 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/data/7939683f9/9f11e11dca514f3086e4eb92ed201a4d/FLAG4015cfe18 [2024-11-08 16:47:03,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/data/7939683f9/9f11e11dca514f3086e4eb92ed201a4d [2024-11-08 16:47:03,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:47:03,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:47:03,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:47:03,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:47:04,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:47:04,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:47:03" (1/1) ... [2024-11-08 16:47:04,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629d6760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:04, skipping insertion in model container [2024-11-08 16:47:04,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:47:03" (1/1) ... [2024-11-08 16:47:04,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:47:04,385 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-11-08 16:47:04,437 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-11-08 16:47:04,454 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-11-08 16:47:04,468 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-11-08 16:47:04,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:47:04,688 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:47:04,794 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-11-08 16:47:04,842 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-11-08 16:47:04,850 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-11-08 16:47:04,855 WARN L250 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_9abb4687-7e5e-4309-ba2c-c1f489482de2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-11-08 16:47:04,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:47:05,009 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:47:05,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05 WrapperNode [2024-11-08 16:47:05,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:47:05,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:47:05,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:47:05,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:47:05,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,157 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2803 [2024-11-08 16:47:05,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:47:05,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:47:05,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:47:05,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:47:05,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,214 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 16:47:05,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:47:05,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:47:05,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:47:05,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:47:05,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (1/1) ... [2024-11-08 16:47:05,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:47:05,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:47:05,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:47:05,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:47:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:47:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:47:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:47:05,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:47:05,642 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:47:05,644 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:47:07,624 INFO L? ?]: Removed 482 outVars from TransFormulas that were not future-live. [2024-11-08 16:47:07,624 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:47:07,665 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:47:07,665 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:47:07,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:47:07 BoogieIcfgContainer [2024-11-08 16:47:07,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:47:07,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:47:07,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:47:07,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:47:07,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:47:03" (1/3) ... [2024-11-08 16:47:07,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d2bfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:47:07, skipping insertion in model container [2024-11-08 16:47:07,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:05" (2/3) ... [2024-11-08 16:47:07,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d2bfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:47:07, skipping insertion in model container [2024-11-08 16:47:07,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:47:07" (3/3) ... [2024-11-08 16:47:07,680 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-08 16:47:07,701 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:47:07,703 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-08 16:47:07,830 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:47:07,842 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d8fc0a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:47:07,842 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-08 16:47:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:07,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 16:47:07,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:07,874 INFO L215 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] [2024-11-08 16:47:07,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:07,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:07,882 INFO L85 PathProgramCache]: Analyzing trace with hash 881754525, now seen corresponding path program 1 times [2024-11-08 16:47:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:07,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858480434] [2024-11-08 16:47:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:08,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:08,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858480434] [2024-11-08 16:47:08,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858480434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:08,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:08,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:08,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272353889] [2024-11-08 16:47:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:08,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:08,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:08,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:08,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:08,535 INFO L87 Difference]: Start difference. First operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:08,691 INFO L93 Difference]: Finished difference Result 690 states and 1215 transitions. [2024-11-08 16:47:08,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:08,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-08 16:47:08,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:08,722 INFO L225 Difference]: With dead ends: 690 [2024-11-08 16:47:08,722 INFO L226 Difference]: Without dead ends: 546 [2024-11-08 16:47:08,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:08,730 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 422 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:08,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1360 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-08 16:47:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 540. [2024-11-08 16:47:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 536 states have (on average 1.333955223880597) internal successors, (715), 539 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:08,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 715 transitions. [2024-11-08 16:47:08,843 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 715 transitions. Word has length 50 [2024-11-08 16:47:08,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:08,847 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 715 transitions. [2024-11-08 16:47:08,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:08,848 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 715 transitions. [2024-11-08 16:47:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 16:47:08,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:08,855 INFO L215 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] [2024-11-08 16:47:08,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:47:08,856 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:08,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:08,857 INFO L85 PathProgramCache]: Analyzing trace with hash -88586633, now seen corresponding path program 1 times [2024-11-08 16:47:08,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:08,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201054633] [2024-11-08 16:47:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:08,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:09,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201054633] [2024-11-08 16:47:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201054633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:09,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:09,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:09,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087442951] [2024-11-08 16:47:09,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:09,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:09,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:09,024 INFO L87 Difference]: Start difference. First operand 540 states and 715 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:09,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:09,094 INFO L93 Difference]: Finished difference Result 955 states and 1317 transitions. [2024-11-08 16:47:09,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:09,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-08 16:47:09,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:09,098 INFO L225 Difference]: With dead ends: 955 [2024-11-08 16:47:09,099 INFO L226 Difference]: Without dead ends: 714 [2024-11-08 16:47:09,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:09,101 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 236 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:09,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1018 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:47:09,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-08 16:47:09,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 708. [2024-11-08 16:47:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 704 states have (on average 1.3536931818181819) internal successors, (953), 707 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:09,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 953 transitions. [2024-11-08 16:47:09,128 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 953 transitions. Word has length 50 [2024-11-08 16:47:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:09,128 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 953 transitions. [2024-11-08 16:47:09,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 953 transitions. [2024-11-08 16:47:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 16:47:09,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:09,132 INFO L215 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] [2024-11-08 16:47:09,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:47:09,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:09,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:09,133 INFO L85 PathProgramCache]: Analyzing trace with hash 301591798, now seen corresponding path program 1 times [2024-11-08 16:47:09,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:09,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8767740] [2024-11-08 16:47:09,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:09,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:09,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:09,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8767740] [2024-11-08 16:47:09,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8767740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:09,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:09,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:09,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342892945] [2024-11-08 16:47:09,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:09,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:09,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:09,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:09,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:09,273 INFO L87 Difference]: Start difference. First operand 708 states and 953 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:09,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:09,380 INFO L93 Difference]: Finished difference Result 1364 states and 1888 transitions. [2024-11-08 16:47:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:09,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-08 16:47:09,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:09,387 INFO L225 Difference]: With dead ends: 1364 [2024-11-08 16:47:09,387 INFO L226 Difference]: Without dead ends: 1035 [2024-11-08 16:47:09,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:09,393 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 297 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:09,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 994 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-08 16:47:09,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1028. [2024-11-08 16:47:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1024 states have (on average 1.3642578125) internal successors, (1397), 1027 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1397 transitions. [2024-11-08 16:47:09,436 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1397 transitions. Word has length 50 [2024-11-08 16:47:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:09,436 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1397 transitions. [2024-11-08 16:47:09,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1397 transitions. [2024-11-08 16:47:09,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 16:47:09,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:09,439 INFO L215 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] [2024-11-08 16:47:09,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:47:09,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:09,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:09,440 INFO L85 PathProgramCache]: Analyzing trace with hash 157307916, now seen corresponding path program 1 times [2024-11-08 16:47:09,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:09,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859250277] [2024-11-08 16:47:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:09,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:09,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:09,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859250277] [2024-11-08 16:47:09,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859250277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:09,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:09,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:09,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780524717] [2024-11-08 16:47:09,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:09,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:09,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:09,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:09,674 INFO L87 Difference]: Start difference. First operand 1028 states and 1397 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:10,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:10,159 INFO L93 Difference]: Finished difference Result 2117 states and 2920 transitions. [2024-11-08 16:47:10,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:10,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-08 16:47:10,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:10,165 INFO L225 Difference]: With dead ends: 2117 [2024-11-08 16:47:10,166 INFO L226 Difference]: Without dead ends: 1255 [2024-11-08 16:47:10,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:10,170 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1690 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:10,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 399 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:47:10,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-08 16:47:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1245. [2024-11-08 16:47:10,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1241 states have (on average 1.3738920225624496) internal successors, (1705), 1244 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1705 transitions. [2024-11-08 16:47:10,230 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1705 transitions. Word has length 50 [2024-11-08 16:47:10,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:10,230 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1705 transitions. [2024-11-08 16:47:10,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1705 transitions. [2024-11-08 16:47:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 16:47:10,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:10,234 INFO L215 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] [2024-11-08 16:47:10,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:47:10,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:10,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:10,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1701829494, now seen corresponding path program 1 times [2024-11-08 16:47:10,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:10,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990726832] [2024-11-08 16:47:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:10,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:10,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990726832] [2024-11-08 16:47:10,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990726832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:10,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:10,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:10,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126675545] [2024-11-08 16:47:10,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:10,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:10,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:10,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:10,394 INFO L87 Difference]: Start difference. First operand 1245 states and 1705 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:10,755 INFO L93 Difference]: Finished difference Result 2643 states and 3662 transitions. [2024-11-08 16:47:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 16:47:10,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:10,761 INFO L225 Difference]: With dead ends: 2643 [2024-11-08 16:47:10,761 INFO L226 Difference]: Without dead ends: 1579 [2024-11-08 16:47:10,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:10,764 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1442 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:10,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 342 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:47:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-11-08 16:47:10,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1177. [2024-11-08 16:47:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1173 states have (on average 1.3725490196078431) internal successors, (1610), 1176 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1610 transitions. [2024-11-08 16:47:10,795 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1610 transitions. Word has length 51 [2024-11-08 16:47:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:10,795 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1610 transitions. [2024-11-08 16:47:10,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1610 transitions. [2024-11-08 16:47:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 16:47:10,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:10,797 INFO L215 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] [2024-11-08 16:47:10,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:47:10,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:10,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1906241974, now seen corresponding path program 1 times [2024-11-08 16:47:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:10,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573699893] [2024-11-08 16:47:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:10,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:10,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573699893] [2024-11-08 16:47:10,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573699893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:10,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:10,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:10,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175386421] [2024-11-08 16:47:10,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:10,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:10,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:10,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:10,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:10,969 INFO L87 Difference]: Start difference. First operand 1177 states and 1610 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:11,358 INFO L93 Difference]: Finished difference Result 2592 states and 3567 transitions. [2024-11-08 16:47:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:11,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 16:47:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:11,364 INFO L225 Difference]: With dead ends: 2592 [2024-11-08 16:47:11,364 INFO L226 Difference]: Without dead ends: 1534 [2024-11-08 16:47:11,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:11,366 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1280 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:11,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 316 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:47:11,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2024-11-08 16:47:11,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1521. [2024-11-08 16:47:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1517 states have (on average 1.3645352669742914) internal successors, (2070), 1520 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2070 transitions. [2024-11-08 16:47:11,403 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2070 transitions. Word has length 51 [2024-11-08 16:47:11,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:11,403 INFO L471 AbstractCegarLoop]: Abstraction has 1521 states and 2070 transitions. [2024-11-08 16:47:11,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2070 transitions. [2024-11-08 16:47:11,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 16:47:11,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:11,405 INFO L215 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] [2024-11-08 16:47:11,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:47:11,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:11,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1198562519, now seen corresponding path program 1 times [2024-11-08 16:47:11,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:11,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042646759] [2024-11-08 16:47:11,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:11,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:11,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:11,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:11,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042646759] [2024-11-08 16:47:11,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042646759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:11,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:11,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:47:11,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609745931] [2024-11-08 16:47:11,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:11,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:47:11,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:11,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:47:11,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:11,638 INFO L87 Difference]: Start difference. First operand 1521 states and 2070 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:12,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:12,195 INFO L93 Difference]: Finished difference Result 3020 states and 4171 transitions. [2024-11-08 16:47:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:12,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-08 16:47:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:12,204 INFO L225 Difference]: With dead ends: 3020 [2024-11-08 16:47:12,204 INFO L226 Difference]: Without dead ends: 2587 [2024-11-08 16:47:12,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:47:12,208 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1846 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:12,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 611 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:47:12,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2024-11-08 16:47:12,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1533. [2024-11-08 16:47:12,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1529 states have (on average 1.3642903858731197) internal successors, (2086), 1532 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2086 transitions. [2024-11-08 16:47:12,262 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2086 transitions. Word has length 52 [2024-11-08 16:47:12,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:12,262 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 2086 transitions. [2024-11-08 16:47:12,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:12,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2086 transitions. [2024-11-08 16:47:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 16:47:12,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:12,264 INFO L215 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] [2024-11-08 16:47:12,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:47:12,265 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:12,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:12,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1743373944, now seen corresponding path program 1 times [2024-11-08 16:47:12,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:12,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743276908] [2024-11-08 16:47:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:12,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:12,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:12,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743276908] [2024-11-08 16:47:12,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743276908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:12,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:12,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:47:12,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389744213] [2024-11-08 16:47:12,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:12,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:47:12,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:12,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:47:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:12,591 INFO L87 Difference]: Start difference. First operand 1533 states and 2086 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:13,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:13,056 INFO L93 Difference]: Finished difference Result 3012 states and 4152 transitions. [2024-11-08 16:47:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:13,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-08 16:47:13,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:13,063 INFO L225 Difference]: With dead ends: 3012 [2024-11-08 16:47:13,064 INFO L226 Difference]: Without dead ends: 2291 [2024-11-08 16:47:13,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:47:13,066 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1593 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:13,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 571 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:47:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-11-08 16:47:13,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 1547. [2024-11-08 16:47:13,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1543 states have (on average 1.3635774465327284) internal successors, (2104), 1546 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:13,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2104 transitions. [2024-11-08 16:47:13,115 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2104 transitions. Word has length 53 [2024-11-08 16:47:13,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:13,117 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 2104 transitions. [2024-11-08 16:47:13,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2104 transitions. [2024-11-08 16:47:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 16:47:13,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:13,118 INFO L215 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] [2024-11-08 16:47:13,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:47:13,119 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1359815673, now seen corresponding path program 1 times [2024-11-08 16:47:13,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:13,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360302808] [2024-11-08 16:47:13,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:13,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:13,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:13,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360302808] [2024-11-08 16:47:13,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360302808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:13,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:13,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:47:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226205802] [2024-11-08 16:47:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:13,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:47:13,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:13,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:47:13,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:13,350 INFO L87 Difference]: Start difference. First operand 1547 states and 2104 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:13,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:13,923 INFO L93 Difference]: Finished difference Result 3306 states and 4587 transitions. [2024-11-08 16:47:13,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:13,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-08 16:47:13,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:13,933 INFO L225 Difference]: With dead ends: 3306 [2024-11-08 16:47:13,933 INFO L226 Difference]: Without dead ends: 2756 [2024-11-08 16:47:13,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:47:13,936 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1718 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:13,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 592 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:47:13,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2024-11-08 16:47:14,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1569. [2024-11-08 16:47:14,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3642172523961662) internal successors, (2135), 1568 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2135 transitions. [2024-11-08 16:47:14,009 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2135 transitions. Word has length 53 [2024-11-08 16:47:14,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:14,009 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2135 transitions. [2024-11-08 16:47:14,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2135 transitions. [2024-11-08 16:47:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:47:14,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:14,011 INFO L215 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] [2024-11-08 16:47:14,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:47:14,013 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:14,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1681497036, now seen corresponding path program 1 times [2024-11-08 16:47:14,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:14,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632690059] [2024-11-08 16:47:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:14,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:14,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:14,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632690059] [2024-11-08 16:47:14,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632690059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:14,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:14,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:47:14,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506507524] [2024-11-08 16:47:14,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:14,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:14,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:14,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:14,473 INFO L87 Difference]: Start difference. First operand 1569 states and 2135 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:15,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:15,172 INFO L93 Difference]: Finished difference Result 3264 states and 4520 transitions. [2024-11-08 16:47:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:15,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-08 16:47:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:15,181 INFO L225 Difference]: With dead ends: 3264 [2024-11-08 16:47:15,181 INFO L226 Difference]: Without dead ends: 2214 [2024-11-08 16:47:15,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:47:15,184 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1831 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:15,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 724 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:47:15,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-08 16:47:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1569. [2024-11-08 16:47:15,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3610223642172523) internal successors, (2130), 1568 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2130 transitions. [2024-11-08 16:47:15,266 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2130 transitions. Word has length 54 [2024-11-08 16:47:15,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:15,267 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2130 transitions. [2024-11-08 16:47:15,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2130 transitions. [2024-11-08 16:47:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:47:15,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:15,269 INFO L215 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] [2024-11-08 16:47:15,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:47:15,269 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:15,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash 711155878, now seen corresponding path program 1 times [2024-11-08 16:47:15,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:15,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938503529] [2024-11-08 16:47:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:15,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:15,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:15,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938503529] [2024-11-08 16:47:15,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938503529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:15,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:15,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:15,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691421053] [2024-11-08 16:47:15,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:15,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:47:15,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:15,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:47:15,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:47:15,723 INFO L87 Difference]: Start difference. First operand 1569 states and 2130 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:16,639 INFO L93 Difference]: Finished difference Result 3631 states and 5036 transitions. [2024-11-08 16:47:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 16:47:16,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-08 16:47:16,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:16,649 INFO L225 Difference]: With dead ends: 3631 [2024-11-08 16:47:16,649 INFO L226 Difference]: Without dead ends: 2709 [2024-11-08 16:47:16,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:47:16,652 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1659 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:16,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 1224 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:47:16,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2024-11-08 16:47:16,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 1540. [2024-11-08 16:47:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3600260416666667) internal successors, (2089), 1539 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2089 transitions. [2024-11-08 16:47:16,721 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2089 transitions. Word has length 54 [2024-11-08 16:47:16,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:16,721 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2089 transitions. [2024-11-08 16:47:16,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2089 transitions. [2024-11-08 16:47:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:47:16,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:16,724 INFO L215 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] [2024-11-08 16:47:16,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:47:16,724 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:16,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:16,725 INFO L85 PathProgramCache]: Analyzing trace with hash -839465653, now seen corresponding path program 1 times [2024-11-08 16:47:16,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:16,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594114249] [2024-11-08 16:47:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:16,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:17,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594114249] [2024-11-08 16:47:17,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594114249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:17,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:17,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:17,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092867323] [2024-11-08 16:47:17,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:17,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:47:17,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:17,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:47:17,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:47:17,106 INFO L87 Difference]: Start difference. First operand 1540 states and 2089 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:17,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:17,954 INFO L93 Difference]: Finished difference Result 2262 states and 3082 transitions. [2024-11-08 16:47:17,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 16:47:17,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-08 16:47:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:17,962 INFO L225 Difference]: With dead ends: 2262 [2024-11-08 16:47:17,963 INFO L226 Difference]: Without dead ends: 2257 [2024-11-08 16:47:17,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:47:17,965 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 1388 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:17,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1014 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:47:17,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-08 16:47:18,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1540. [2024-11-08 16:47:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3587239583333333) internal successors, (2087), 1539 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2087 transitions. [2024-11-08 16:47:18,010 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2087 transitions. Word has length 54 [2024-11-08 16:47:18,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:18,011 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2087 transitions. [2024-11-08 16:47:18,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2087 transitions. [2024-11-08 16:47:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 16:47:18,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:18,013 INFO L215 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] [2024-11-08 16:47:18,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:47:18,014 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:18,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1126690749, now seen corresponding path program 1 times [2024-11-08 16:47:18,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:18,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467065739] [2024-11-08 16:47:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:18,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:18,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467065739] [2024-11-08 16:47:18,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467065739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:18,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822010430] [2024-11-08 16:47:18,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:18,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:18,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:18,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:18,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,150 INFO L87 Difference]: Start difference. First operand 1540 states and 2087 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:18,202 INFO L93 Difference]: Finished difference Result 2068 states and 2797 transitions. [2024-11-08 16:47:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:18,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-08 16:47:18,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:18,208 INFO L225 Difference]: With dead ends: 2068 [2024-11-08 16:47:18,208 INFO L226 Difference]: Without dead ends: 1509 [2024-11-08 16:47:18,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,210 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 257 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:18,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 673 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:47:18,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-08 16:47:18,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1507. [2024-11-08 16:47:18,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3293413173652695) internal successors, (1998), 1506 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1998 transitions. [2024-11-08 16:47:18,257 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1998 transitions. Word has length 55 [2024-11-08 16:47:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:18,258 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1998 transitions. [2024-11-08 16:47:18,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1998 transitions. [2024-11-08 16:47:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 16:47:18,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:18,261 INFO L215 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] [2024-11-08 16:47:18,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:47:18,261 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:18,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:18,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1317678866, now seen corresponding path program 1 times [2024-11-08 16:47:18,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:18,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811559447] [2024-11-08 16:47:18,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:18,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:18,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:18,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811559447] [2024-11-08 16:47:18,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811559447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:18,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:18,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:18,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169747206] [2024-11-08 16:47:18,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:18,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:18,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:18,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:18,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,384 INFO L87 Difference]: Start difference. First operand 1507 states and 1998 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:18,448 INFO L93 Difference]: Finished difference Result 2127 states and 2843 transitions. [2024-11-08 16:47:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:18,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-08 16:47:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:18,453 INFO L225 Difference]: With dead ends: 2127 [2024-11-08 16:47:18,454 INFO L226 Difference]: Without dead ends: 1514 [2024-11-08 16:47:18,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,456 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 206 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:18,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 744 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:18,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2024-11-08 16:47:18,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1507. [2024-11-08 16:47:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3140385894876914) internal successors, (1975), 1506 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1975 transitions. [2024-11-08 16:47:18,492 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1975 transitions. Word has length 55 [2024-11-08 16:47:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:18,492 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1975 transitions. [2024-11-08 16:47:18,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1975 transitions. [2024-11-08 16:47:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 16:47:18,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:18,494 INFO L215 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] [2024-11-08 16:47:18,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:47:18,495 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:18,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash -944081870, now seen corresponding path program 1 times [2024-11-08 16:47:18,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:18,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203314967] [2024-11-08 16:47:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:18,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:18,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203314967] [2024-11-08 16:47:18,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203314967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:18,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:18,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:18,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653965616] [2024-11-08 16:47:18,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:18,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:18,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:18,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:18,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,584 INFO L87 Difference]: Start difference. First operand 1507 states and 1975 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:18,618 INFO L93 Difference]: Finished difference Result 2164 states and 2861 transitions. [2024-11-08 16:47:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:18,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-08 16:47:18,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:18,630 INFO L225 Difference]: With dead ends: 2164 [2024-11-08 16:47:18,630 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 16:47:18,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,632 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 222 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:18,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 745 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:47:18,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 16:47:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1507. [2024-11-08 16:47:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3020625415834997) internal successors, (1957), 1506 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1957 transitions. [2024-11-08 16:47:18,662 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1957 transitions. Word has length 55 [2024-11-08 16:47:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:18,662 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1957 transitions. [2024-11-08 16:47:18,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1957 transitions. [2024-11-08 16:47:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 16:47:18,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:18,665 INFO L215 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] [2024-11-08 16:47:18,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:47:18,666 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:18,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:18,666 INFO L85 PathProgramCache]: Analyzing trace with hash -599519829, now seen corresponding path program 1 times [2024-11-08 16:47:18,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:18,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443576699] [2024-11-08 16:47:18,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:18,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:18,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:18,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443576699] [2024-11-08 16:47:18,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443576699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:18,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:18,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:18,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233986594] [2024-11-08 16:47:18,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:18,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:18,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:18,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:18,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,747 INFO L87 Difference]: Start difference. First operand 1507 states and 1957 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:18,836 INFO L93 Difference]: Finished difference Result 2638 states and 3459 transitions. [2024-11-08 16:47:18,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:18,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-08 16:47:18,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:18,841 INFO L225 Difference]: With dead ends: 2638 [2024-11-08 16:47:18,841 INFO L226 Difference]: Without dead ends: 1786 [2024-11-08 16:47:18,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:18,843 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 280 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:18,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 420 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:18,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-08 16:47:18,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1397. [2024-11-08 16:47:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1393 states have (on average 1.3058147882268485) internal successors, (1819), 1396 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1819 transitions. [2024-11-08 16:47:18,867 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1819 transitions. Word has length 57 [2024-11-08 16:47:18,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:18,867 INFO L471 AbstractCegarLoop]: Abstraction has 1397 states and 1819 transitions. [2024-11-08 16:47:18,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:18,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1819 transitions. [2024-11-08 16:47:18,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 16:47:18,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:18,870 INFO L215 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] [2024-11-08 16:47:18,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:47:18,870 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:18,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:18,871 INFO L85 PathProgramCache]: Analyzing trace with hash -953719962, now seen corresponding path program 1 times [2024-11-08 16:47:18,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:18,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133482535] [2024-11-08 16:47:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:18,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:20,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:20,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133482535] [2024-11-08 16:47:20,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133482535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:20,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:20,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 16:47:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984825668] [2024-11-08 16:47:20,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:20,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 16:47:20,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:20,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 16:47:20,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:47:20,602 INFO L87 Difference]: Start difference. First operand 1397 states and 1819 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:23,472 INFO L93 Difference]: Finished difference Result 2904 states and 3841 transitions. [2024-11-08 16:47:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 16:47:23,473 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-08 16:47:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:23,478 INFO L225 Difference]: With dead ends: 2904 [2024-11-08 16:47:23,478 INFO L226 Difference]: Without dead ends: 2900 [2024-11-08 16:47:23,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 16:47:23,480 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 3249 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:23,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3249 Valid, 3062 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:47:23,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2024-11-08 16:47:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1409. [2024-11-08 16:47:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1405 states have (on average 1.306761565836299) internal successors, (1836), 1408 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1836 transitions. [2024-11-08 16:47:23,512 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1836 transitions. Word has length 57 [2024-11-08 16:47:23,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:23,512 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 1836 transitions. [2024-11-08 16:47:23,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:23,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1836 transitions. [2024-11-08 16:47:23,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 16:47:23,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:23,514 INFO L215 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] [2024-11-08 16:47:23,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:47:23,514 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:23,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:23,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1381909423, now seen corresponding path program 1 times [2024-11-08 16:47:23,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:23,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544493409] [2024-11-08 16:47:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:23,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:24,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:24,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544493409] [2024-11-08 16:47:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544493409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:24,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:24,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 16:47:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084886501] [2024-11-08 16:47:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:24,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:47:24,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:24,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:47:24,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:47:24,229 INFO L87 Difference]: Start difference. First operand 1409 states and 1836 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:25,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:25,124 INFO L93 Difference]: Finished difference Result 3448 states and 4586 transitions. [2024-11-08 16:47:25,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:47:25,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-08 16:47:25,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:25,131 INFO L225 Difference]: With dead ends: 3448 [2024-11-08 16:47:25,132 INFO L226 Difference]: Without dead ends: 3222 [2024-11-08 16:47:25,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:47:25,139 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 2135 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:25,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 1127 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:47:25,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2024-11-08 16:47:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 1346. [2024-11-08 16:47:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1344 states have (on average 1.3095238095238095) internal successors, (1760), 1345 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1760 transitions. [2024-11-08 16:47:25,191 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1760 transitions. Word has length 57 [2024-11-08 16:47:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:25,192 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1760 transitions. [2024-11-08 16:47:25,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1760 transitions. [2024-11-08 16:47:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 16:47:25,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:25,198 INFO L215 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] [2024-11-08 16:47:25,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:47:25,199 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:25,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:25,199 INFO L85 PathProgramCache]: Analyzing trace with hash 433372011, now seen corresponding path program 1 times [2024-11-08 16:47:25,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:25,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212167375] [2024-11-08 16:47:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:25,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:26,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:26,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212167375] [2024-11-08 16:47:26,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212167375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:26,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:26,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:47:26,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301384802] [2024-11-08 16:47:26,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:26,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:47:26,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:26,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:47:26,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:26,238 INFO L87 Difference]: Start difference. First operand 1346 states and 1760 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:27,115 INFO L93 Difference]: Finished difference Result 2235 states and 2957 transitions. [2024-11-08 16:47:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:47:27,116 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-08 16:47:27,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:27,120 INFO L225 Difference]: With dead ends: 2235 [2024-11-08 16:47:27,120 INFO L226 Difference]: Without dead ends: 2157 [2024-11-08 16:47:27,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:47:27,122 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 519 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:27,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1740 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:47:27,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2024-11-08 16:47:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 1337. [2024-11-08 16:47:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1336 states have (on average 1.3083832335329342) internal successors, (1748), 1336 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1748 transitions. [2024-11-08 16:47:27,169 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1748 transitions. Word has length 58 [2024-11-08 16:47:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:27,170 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1748 transitions. [2024-11-08 16:47:27,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1748 transitions. [2024-11-08 16:47:27,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 16:47:27,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:27,174 INFO L215 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] [2024-11-08 16:47:27,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:47:27,175 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:27,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:27,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2109512119, now seen corresponding path program 1 times [2024-11-08 16:47:27,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:27,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383147279] [2024-11-08 16:47:27,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:27,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:27,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:27,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:27,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383147279] [2024-11-08 16:47:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383147279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:27,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:27,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:47:27,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278522973] [2024-11-08 16:47:27,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:27,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:27,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:27,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:27,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:27,318 INFO L87 Difference]: Start difference. First operand 1337 states and 1748 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:27,434 INFO L93 Difference]: Finished difference Result 3113 states and 4208 transitions. [2024-11-08 16:47:27,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:27,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 16:47:27,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:27,439 INFO L225 Difference]: With dead ends: 3113 [2024-11-08 16:47:27,439 INFO L226 Difference]: Without dead ends: 2379 [2024-11-08 16:47:27,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:27,442 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 978 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:27,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 628 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:27,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-11-08 16:47:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2035. [2024-11-08 16:47:27,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 2034 states have (on average 1.3156342182890854) internal successors, (2676), 2034 states have internal predecessors, (2676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2676 transitions. [2024-11-08 16:47:27,536 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2676 transitions. Word has length 66 [2024-11-08 16:47:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:27,536 INFO L471 AbstractCegarLoop]: Abstraction has 2035 states and 2676 transitions. [2024-11-08 16:47:27,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2676 transitions. [2024-11-08 16:47:27,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 16:47:27,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:27,544 INFO L215 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] [2024-11-08 16:47:27,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:47:27,545 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:27,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:27,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1089617976, now seen corresponding path program 1 times [2024-11-08 16:47:27,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:27,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480617107] [2024-11-08 16:47:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:27,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:27,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480617107] [2024-11-08 16:47:27,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480617107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:27,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:27,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:47:27,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792771223] [2024-11-08 16:47:27,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:27,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:27,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:27,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:27,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:27,790 INFO L87 Difference]: Start difference. First operand 2035 states and 2676 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:27,928 INFO L93 Difference]: Finished difference Result 2041 states and 2679 transitions. [2024-11-08 16:47:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:27,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 16:47:27,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:27,934 INFO L225 Difference]: With dead ends: 2041 [2024-11-08 16:47:27,934 INFO L226 Difference]: Without dead ends: 1818 [2024-11-08 16:47:27,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:27,937 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 580 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:27,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 716 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2024-11-08 16:47:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1814. [2024-11-08 16:47:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1813 states have (on average 1.319911748483177) internal successors, (2393), 1813 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2393 transitions. [2024-11-08 16:47:27,977 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2393 transitions. Word has length 67 [2024-11-08 16:47:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:27,977 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2393 transitions. [2024-11-08 16:47:27,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2393 transitions. [2024-11-08 16:47:27,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 16:47:27,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:27,985 INFO L215 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] [2024-11-08 16:47:27,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:47:27,985 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:27,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:27,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1950278783, now seen corresponding path program 1 times [2024-11-08 16:47:27,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:27,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348751760] [2024-11-08 16:47:27,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:27,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:28,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:28,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348751760] [2024-11-08 16:47:28,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348751760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:28,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:28,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560785344] [2024-11-08 16:47:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:28,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:28,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:28,162 INFO L87 Difference]: Start difference. First operand 1814 states and 2393 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:28,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:28,211 INFO L93 Difference]: Finished difference Result 4072 states and 5469 transitions. [2024-11-08 16:47:28,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:28,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 16:47:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:28,221 INFO L225 Difference]: With dead ends: 4072 [2024-11-08 16:47:28,221 INFO L226 Difference]: Without dead ends: 2770 [2024-11-08 16:47:28,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:28,224 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 118 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:28,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 534 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:47:28,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2024-11-08 16:47:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2640. [2024-11-08 16:47:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 1.3183023872679045) internal successors, (3479), 2639 states have internal predecessors, (3479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:28,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3479 transitions. [2024-11-08 16:47:28,275 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3479 transitions. Word has length 68 [2024-11-08 16:47:28,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:28,275 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 3479 transitions. [2024-11-08 16:47:28,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:28,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3479 transitions. [2024-11-08 16:47:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 16:47:28,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:28,279 INFO L215 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] [2024-11-08 16:47:28,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:47:28,279 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:28,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash 427404410, now seen corresponding path program 1 times [2024-11-08 16:47:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:28,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139136738] [2024-11-08 16:47:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:28,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:28,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:28,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139136738] [2024-11-08 16:47:28,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139136738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:28,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:28,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:28,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167885973] [2024-11-08 16:47:28,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:28,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:28,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:28,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:28,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:28,531 INFO L87 Difference]: Start difference. First operand 2640 states and 3479 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:28,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:28,640 INFO L93 Difference]: Finished difference Result 6652 states and 8933 transitions. [2024-11-08 16:47:28,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:28,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 16:47:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:28,650 INFO L225 Difference]: With dead ends: 6652 [2024-11-08 16:47:28,650 INFO L226 Difference]: Without dead ends: 4546 [2024-11-08 16:47:28,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:28,654 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 107 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:28,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 521 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:28,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2024-11-08 16:47:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4176. [2024-11-08 16:47:28,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 4175 states have (on average 1.3233532934131738) internal successors, (5525), 4175 states have internal predecessors, (5525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5525 transitions. [2024-11-08 16:47:28,772 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5525 transitions. Word has length 68 [2024-11-08 16:47:28,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:28,773 INFO L471 AbstractCegarLoop]: Abstraction has 4176 states and 5525 transitions. [2024-11-08 16:47:28,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5525 transitions. [2024-11-08 16:47:28,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 16:47:28,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:28,776 INFO L215 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] [2024-11-08 16:47:28,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:47:28,776 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:28,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2114357008, now seen corresponding path program 1 times [2024-11-08 16:47:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:28,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56567512] [2024-11-08 16:47:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:28,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:28,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:28,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56567512] [2024-11-08 16:47:28,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56567512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:28,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:28,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:28,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573158478] [2024-11-08 16:47:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:28,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:28,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:28,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:28,946 INFO L87 Difference]: Start difference. First operand 4176 states and 5525 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:29,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:29,044 INFO L93 Difference]: Finished difference Result 11060 states and 14767 transitions. [2024-11-08 16:47:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:29,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 16:47:29,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:29,060 INFO L225 Difference]: With dead ends: 11060 [2024-11-08 16:47:29,061 INFO L226 Difference]: Without dead ends: 7418 [2024-11-08 16:47:29,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:29,066 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 85 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:29,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 511 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:29,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7418 states. [2024-11-08 16:47:29,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7418 to 6808. [2024-11-08 16:47:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6808 states, 6807 states have (on average 1.3187894814161891) internal successors, (8977), 6807 states have internal predecessors, (8977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 8977 transitions. [2024-11-08 16:47:29,198 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 8977 transitions. Word has length 70 [2024-11-08 16:47:29,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:29,198 INFO L471 AbstractCegarLoop]: Abstraction has 6808 states and 8977 transitions. [2024-11-08 16:47:29,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 8977 transitions. [2024-11-08 16:47:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 16:47:29,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:29,201 INFO L215 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] [2024-11-08 16:47:29,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 16:47:29,201 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:29,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2105959165, now seen corresponding path program 1 times [2024-11-08 16:47:29,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:29,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153349707] [2024-11-08 16:47:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:29,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:29,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:29,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153349707] [2024-11-08 16:47:29,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153349707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:29,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:29,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:47:29,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345718271] [2024-11-08 16:47:29,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:29,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:47:29,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:29,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:47:29,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:47:29,620 INFO L87 Difference]: Start difference. First operand 6808 states and 8977 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:29,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:29,710 INFO L93 Difference]: Finished difference Result 7482 states and 9874 transitions. [2024-11-08 16:47:29,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:47:29,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-08 16:47:29,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:29,725 INFO L225 Difference]: With dead ends: 7482 [2024-11-08 16:47:29,725 INFO L226 Difference]: Without dead ends: 7480 [2024-11-08 16:47:29,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:47:29,729 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:29,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1263 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:29,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2024-11-08 16:47:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 7480. [2024-11-08 16:47:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7480 states, 7479 states have (on average 1.2901457414092794) internal successors, (9649), 7479 states have internal predecessors, (9649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7480 states to 7480 states and 9649 transitions. [2024-11-08 16:47:29,861 INFO L78 Accepts]: Start accepts. Automaton has 7480 states and 9649 transitions. Word has length 72 [2024-11-08 16:47:29,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:29,861 INFO L471 AbstractCegarLoop]: Abstraction has 7480 states and 9649 transitions. [2024-11-08 16:47:29,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7480 states and 9649 transitions. [2024-11-08 16:47:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 16:47:29,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:29,864 INFO L215 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] [2024-11-08 16:47:29,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 16:47:29,865 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:29,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1422452613, now seen corresponding path program 1 times [2024-11-08 16:47:29,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843438597] [2024-11-08 16:47:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:29,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843438597] [2024-11-08 16:47:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843438597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:29,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:29,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:29,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991500244] [2024-11-08 16:47:29,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:29,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:29,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:29,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:29,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:29,954 INFO L87 Difference]: Start difference. First operand 7480 states and 9649 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:30,047 INFO L93 Difference]: Finished difference Result 17860 states and 23035 transitions. [2024-11-08 16:47:30,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:30,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-08 16:47:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:30,070 INFO L225 Difference]: With dead ends: 17860 [2024-11-08 16:47:30,070 INFO L226 Difference]: Without dead ends: 10914 [2024-11-08 16:47:30,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:30,080 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 177 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:30,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 379 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:47:30,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10914 states. [2024-11-08 16:47:30,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10914 to 10912. [2024-11-08 16:47:30,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10912 states, 10911 states have (on average 1.271469159563743) internal successors, (13873), 10911 states have internal predecessors, (13873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:30,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10912 states to 10912 states and 13873 transitions. [2024-11-08 16:47:30,270 INFO L78 Accepts]: Start accepts. Automaton has 10912 states and 13873 transitions. Word has length 73 [2024-11-08 16:47:30,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:30,271 INFO L471 AbstractCegarLoop]: Abstraction has 10912 states and 13873 transitions. [2024-11-08 16:47:30,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:30,271 INFO L276 IsEmpty]: Start isEmpty. Operand 10912 states and 13873 transitions. [2024-11-08 16:47:30,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 16:47:30,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:30,274 INFO L215 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] [2024-11-08 16:47:30,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 16:47:30,274 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:30,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:30,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1415466240, now seen corresponding path program 1 times [2024-11-08 16:47:30,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:30,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038239564] [2024-11-08 16:47:30,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:30,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:30,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038239564] [2024-11-08 16:47:30,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038239564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:30,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:30,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:47:30,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875028927] [2024-11-08 16:47:30,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:30,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:30,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:30,480 INFO L87 Difference]: Start difference. First operand 10912 states and 13873 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:30,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:30,645 INFO L93 Difference]: Finished difference Result 16062 states and 20560 transitions. [2024-11-08 16:47:30,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:30,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-08 16:47:30,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:30,675 INFO L225 Difference]: With dead ends: 16062 [2024-11-08 16:47:30,675 INFO L226 Difference]: Without dead ends: 13696 [2024-11-08 16:47:30,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:30,682 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 599 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:30,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 771 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:30,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13696 states. [2024-11-08 16:47:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13696 to 12472. [2024-11-08 16:47:30,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12472 states, 12471 states have (on average 1.269184508058696) internal successors, (15828), 12471 states have internal predecessors, (15828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12472 states to 12472 states and 15828 transitions. [2024-11-08 16:47:30,913 INFO L78 Accepts]: Start accepts. Automaton has 12472 states and 15828 transitions. Word has length 74 [2024-11-08 16:47:30,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:30,913 INFO L471 AbstractCegarLoop]: Abstraction has 12472 states and 15828 transitions. [2024-11-08 16:47:30,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 12472 states and 15828 transitions. [2024-11-08 16:47:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 16:47:30,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:30,917 INFO L215 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] [2024-11-08 16:47:30,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 16:47:30,917 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:30,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash -96521411, now seen corresponding path program 1 times [2024-11-08 16:47:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:30,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099759815] [2024-11-08 16:47:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:31,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:31,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099759815] [2024-11-08 16:47:31,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099759815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:31,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:31,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:47:31,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456844570] [2024-11-08 16:47:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:31,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:31,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:31,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:31,088 INFO L87 Difference]: Start difference. First operand 12472 states and 15828 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:31,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:31,235 INFO L93 Difference]: Finished difference Result 16742 states and 21360 transitions. [2024-11-08 16:47:31,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:31,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-08 16:47:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:31,265 INFO L225 Difference]: With dead ends: 16742 [2024-11-08 16:47:31,265 INFO L226 Difference]: Without dead ends: 14424 [2024-11-08 16:47:31,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:47:31,272 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 602 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:31,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 749 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14424 states. [2024-11-08 16:47:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14424 to 13998. [2024-11-08 16:47:31,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13998 states, 13997 states have (on average 1.2671286704293778) internal successors, (17736), 13997 states have internal predecessors, (17736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13998 states to 13998 states and 17736 transitions. [2024-11-08 16:47:31,654 INFO L78 Accepts]: Start accepts. Automaton has 13998 states and 17736 transitions. Word has length 78 [2024-11-08 16:47:31,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:31,654 INFO L471 AbstractCegarLoop]: Abstraction has 13998 states and 17736 transitions. [2024-11-08 16:47:31,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 13998 states and 17736 transitions. [2024-11-08 16:47:31,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:31,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:31,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:31,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 16:47:31,663 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:31,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:31,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1725210313, now seen corresponding path program 1 times [2024-11-08 16:47:31,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:31,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362647483] [2024-11-08 16:47:31,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:31,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:32,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 16:47:32,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:32,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362647483] [2024-11-08 16:47:32,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362647483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:32,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:32,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:32,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950252501] [2024-11-08 16:47:32,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:32,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:47:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:32,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:47:32,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:47:32,199 INFO L87 Difference]: Start difference. First operand 13998 states and 17736 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:33,255 INFO L93 Difference]: Finished difference Result 38186 states and 48317 transitions. [2024-11-08 16:47:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:47:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-08 16:47:33,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:33,327 INFO L225 Difference]: With dead ends: 38186 [2024-11-08 16:47:33,327 INFO L226 Difference]: Without dead ends: 31418 [2024-11-08 16:47:33,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:47:33,340 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1035 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:33,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 917 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:47:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31418 states. [2024-11-08 16:47:33,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31418 to 13974. [2024-11-08 16:47:33,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13974 states, 13973 states have (on average 1.2672296571960209) internal successors, (17707), 13973 states have internal predecessors, (17707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13974 states to 13974 states and 17707 transitions. [2024-11-08 16:47:33,715 INFO L78 Accepts]: Start accepts. Automaton has 13974 states and 17707 transitions. Word has length 92 [2024-11-08 16:47:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:33,716 INFO L471 AbstractCegarLoop]: Abstraction has 13974 states and 17707 transitions. [2024-11-08 16:47:33,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 13974 states and 17707 transitions. [2024-11-08 16:47:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:47:33,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:33,724 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:33,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 16:47:33,724 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:33,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1339395570, now seen corresponding path program 1 times [2024-11-08 16:47:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:33,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749178305] [2024-11-08 16:47:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:34,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:34,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749178305] [2024-11-08 16:47:34,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749178305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:34,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:34,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:47:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954147437] [2024-11-08 16:47:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:34,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:47:34,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:34,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:47:34,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:47:34,290 INFO L87 Difference]: Start difference. First operand 13974 states and 17707 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:35,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:35,291 INFO L93 Difference]: Finished difference Result 31881 states and 40265 transitions. [2024-11-08 16:47:35,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:47:35,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-08 16:47:35,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:35,351 INFO L225 Difference]: With dead ends: 31881 [2024-11-08 16:47:35,352 INFO L226 Difference]: Without dead ends: 25041 [2024-11-08 16:47:35,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:47:35,366 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1090 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:35,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 941 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:47:35,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25041 states. [2024-11-08 16:47:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25041 to 21793. [2024-11-08 16:47:35,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21793 states, 21792 states have (on average 1.2663362701908958) internal successors, (27596), 21792 states have internal predecessors, (27596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:35,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21793 states to 21793 states and 27596 transitions. [2024-11-08 16:47:35,900 INFO L78 Accepts]: Start accepts. Automaton has 21793 states and 27596 transitions. Word has length 93 [2024-11-08 16:47:35,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:35,900 INFO L471 AbstractCegarLoop]: Abstraction has 21793 states and 27596 transitions. [2024-11-08 16:47:35,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 21793 states and 27596 transitions. [2024-11-08 16:47:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:47:35,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:35,908 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:35,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 16:47:35,909 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:47:35,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1289899464, now seen corresponding path program 1 times [2024-11-08 16:47:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:35,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564682978] [2024-11-08 16:47:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:35,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:36,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:36,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564682978] [2024-11-08 16:47:36,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564682978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:47:36,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198146532] [2024-11-08 16:47:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:36,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:47:36,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:47:36,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:47:36,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:47:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:37,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:47:37,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:47:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:39,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:47:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:41,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198146532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:47:41,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:47:41,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 28 [2024-11-08 16:47:41,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201968225] [2024-11-08 16:47:41,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:47:41,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 16:47:41,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:41,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 16:47:41,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2024-11-08 16:47:41,482 INFO L87 Difference]: Start difference. First operand 21793 states and 27596 transitions. Second operand has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:05,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:05,647 INFO L93 Difference]: Finished difference Result 134020 states and 167909 transitions. [2024-11-08 16:48:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2024-11-08 16:48:05,648 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-08 16:48:05,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:05,878 INFO L225 Difference]: With dead ends: 134020 [2024-11-08 16:48:05,878 INFO L226 Difference]: Without dead ends: 123820 [2024-11-08 16:48:05,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28015 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=10500, Invalid=55806, Unknown=0, NotChecked=0, Total=66306 [2024-11-08 16:48:05,934 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 4668 mSDsluCounter, 5344 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4668 SdHoareTripleChecker+Valid, 5733 SdHoareTripleChecker+Invalid, 5575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:05,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4668 Valid, 5733 Invalid, 5575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 5456 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-08 16:48:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123820 states. [2024-11-08 16:48:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123820 to 41224. [2024-11-08 16:48:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41224 states, 41223 states have (on average 1.2659437692550275) internal successors, (52186), 41223 states have internal predecessors, (52186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41224 states to 41224 states and 52186 transitions. [2024-11-08 16:48:07,892 INFO L78 Accepts]: Start accepts. Automaton has 41224 states and 52186 transitions. Word has length 93 [2024-11-08 16:48:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:07,893 INFO L471 AbstractCegarLoop]: Abstraction has 41224 states and 52186 transitions. [2024-11-08 16:48:07,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 41224 states and 52186 transitions. [2024-11-08 16:48:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 16:48:07,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:07,912 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:07,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:48:08,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:08,113 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:08,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:08,114 INFO L85 PathProgramCache]: Analyzing trace with hash 848038152, now seen corresponding path program 1 times [2024-11-08 16:48:08,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:08,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770446005] [2024-11-08 16:48:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:08,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770446005] [2024-11-08 16:48:08,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770446005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:48:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559461654] [2024-11-08 16:48:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:08,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:08,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:08,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:48:08,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:48:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:09,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-08 16:48:09,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:48:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:09,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:48:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:10,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559461654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:48:10,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:48:10,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 8] total 18 [2024-11-08 16:48:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555435216] [2024-11-08 16:48:10,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:48:10,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 16:48:10,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:10,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 16:48:10,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:48:10,503 INFO L87 Difference]: Start difference. First operand 41224 states and 52186 transitions. Second operand has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:12,661 INFO L93 Difference]: Finished difference Result 171069 states and 217226 transitions. [2024-11-08 16:48:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-08 16:48:12,662 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-08 16:48:12,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:12,940 INFO L225 Difference]: With dead ends: 171069 [2024-11-08 16:48:12,940 INFO L226 Difference]: Without dead ends: 130527 [2024-11-08 16:48:12,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=515, Invalid=1837, Unknown=0, NotChecked=0, Total=2352 [2024-11-08 16:48:12,995 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 3642 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:12,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3642 Valid, 3226 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:48:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130527 states. [2024-11-08 16:48:15,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130527 to 111482. [2024-11-08 16:48:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111482 states, 111481 states have (on average 1.2567702119643707) internal successors, (140106), 111481 states have internal predecessors, (140106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:15,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111482 states to 111482 states and 140106 transitions. [2024-11-08 16:48:15,723 INFO L78 Accepts]: Start accepts. Automaton has 111482 states and 140106 transitions. Word has length 94 [2024-11-08 16:48:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:15,724 INFO L471 AbstractCegarLoop]: Abstraction has 111482 states and 140106 transitions. [2024-11-08 16:48:15,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:15,724 INFO L276 IsEmpty]: Start isEmpty. Operand 111482 states and 140106 transitions. [2024-11-08 16:48:15,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 16:48:15,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:15,755 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:15,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:48:15,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:15,956 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:15,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:15,956 INFO L85 PathProgramCache]: Analyzing trace with hash 900007329, now seen corresponding path program 1 times [2024-11-08 16:48:15,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:15,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082831209] [2024-11-08 16:48:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:15,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:16,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:16,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082831209] [2024-11-08 16:48:16,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082831209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:16,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:16,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:48:16,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169286333] [2024-11-08 16:48:16,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:16,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:48:16,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:16,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:48:16,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:48:16,113 INFO L87 Difference]: Start difference. First operand 111482 states and 140106 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:17,449 INFO L93 Difference]: Finished difference Result 222003 states and 278789 transitions. [2024-11-08 16:48:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:48:17,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 16:48:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:17,626 INFO L225 Difference]: With dead ends: 222003 [2024-11-08 16:48:17,626 INFO L226 Difference]: Without dead ends: 111203 [2024-11-08 16:48:17,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:17,706 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 441 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:17,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 487 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:48:17,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111203 states. [2024-11-08 16:48:19,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111203 to 103834. [2024-11-08 16:48:19,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103834 states, 103833 states have (on average 1.2375160112873556) internal successors, (128495), 103833 states have internal predecessors, (128495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103834 states to 103834 states and 128495 transitions. [2024-11-08 16:48:19,870 INFO L78 Accepts]: Start accepts. Automaton has 103834 states and 128495 transitions. Word has length 95 [2024-11-08 16:48:19,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:19,871 INFO L471 AbstractCegarLoop]: Abstraction has 103834 states and 128495 transitions. [2024-11-08 16:48:19,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 103834 states and 128495 transitions. [2024-11-08 16:48:19,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 16:48:19,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:19,886 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:19,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 16:48:19,887 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:19,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash -702249606, now seen corresponding path program 1 times [2024-11-08 16:48:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292117116] [2024-11-08 16:48:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:19,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:20,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:20,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292117116] [2024-11-08 16:48:20,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292117116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:20,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:20,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:48:20,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30826630] [2024-11-08 16:48:20,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:20,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:48:20,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:20,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:48:20,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:48:20,112 INFO L87 Difference]: Start difference. First operand 103834 states and 128495 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:21,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:21,060 INFO L93 Difference]: Finished difference Result 140787 states and 175446 transitions. [2024-11-08 16:48:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:48:21,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 16:48:21,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:21,269 INFO L225 Difference]: With dead ends: 140787 [2024-11-08 16:48:21,269 INFO L226 Difference]: Without dead ends: 122967 [2024-11-08 16:48:21,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:21,298 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 538 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:21,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 796 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:48:21,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122967 states. [2024-11-08 16:48:23,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122967 to 118093. [2024-11-08 16:48:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118093 states, 118092 states have (on average 1.2359939708024252) internal successors, (145961), 118092 states have internal predecessors, (145961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118093 states to 118093 states and 145961 transitions. [2024-11-08 16:48:23,824 INFO L78 Accepts]: Start accepts. Automaton has 118093 states and 145961 transitions. Word has length 99 [2024-11-08 16:48:23,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:23,824 INFO L471 AbstractCegarLoop]: Abstraction has 118093 states and 145961 transitions. [2024-11-08 16:48:23,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 118093 states and 145961 transitions. [2024-11-08 16:48:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 16:48:23,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:23,838 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:23,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 16:48:23,838 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:23,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:23,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1212187745, now seen corresponding path program 1 times [2024-11-08 16:48:23,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:23,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536533847] [2024-11-08 16:48:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:23,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:48:23,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:23,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536533847] [2024-11-08 16:48:23,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536533847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:23,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:23,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:23,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479232388] [2024-11-08 16:48:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:23,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:23,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:23,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:23,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:23,936 INFO L87 Difference]: Start difference. First operand 118093 states and 145961 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:24,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:24,614 INFO L93 Difference]: Finished difference Result 221017 states and 273472 transitions. [2024-11-08 16:48:24,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-08 16:48:24,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:25,498 INFO L225 Difference]: With dead ends: 221017 [2024-11-08 16:48:25,498 INFO L226 Difference]: Without dead ends: 103606 [2024-11-08 16:48:25,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:25,553 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 188 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:25,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 239 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:48:25,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103606 states. [2024-11-08 16:48:27,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103606 to 101236. [2024-11-08 16:48:27,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101236 states, 101235 states have (on average 1.2179088259989135) internal successors, (123295), 101235 states have internal predecessors, (123295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101236 states to 101236 states and 123295 transitions. [2024-11-08 16:48:27,336 INFO L78 Accepts]: Start accepts. Automaton has 101236 states and 123295 transitions. Word has length 100 [2024-11-08 16:48:27,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:27,336 INFO L471 AbstractCegarLoop]: Abstraction has 101236 states and 123295 transitions. [2024-11-08 16:48:27,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 101236 states and 123295 transitions. [2024-11-08 16:48:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 16:48:27,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:27,348 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:27,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 16:48:27,348 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:27,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:27,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1791537517, now seen corresponding path program 1 times [2024-11-08 16:48:27,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:27,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000083253] [2024-11-08 16:48:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:27,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:27,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:27,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:27,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000083253] [2024-11-08 16:48:27,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000083253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:48:27,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515478709] [2024-11-08 16:48:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:27,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:27,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:27,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:48:27,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:48:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:27,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:48:27,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:48:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:28,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:48:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:28,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515478709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:48:28,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:48:28,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 16:48:28,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201512070] [2024-11-08 16:48:28,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:48:28,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:48:28,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:28,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:48:28,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:48:28,630 INFO L87 Difference]: Start difference. First operand 101236 states and 123295 transitions. Second operand has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:30,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:30,116 INFO L93 Difference]: Finished difference Result 178258 states and 217019 transitions. [2024-11-08 16:48:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:48:30,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-08 16:48:30,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:30,224 INFO L225 Difference]: With dead ends: 178258 [2024-11-08 16:48:30,224 INFO L226 Difference]: Without dead ends: 77616 [2024-11-08 16:48:30,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:48:30,278 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1716 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:30,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 923 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:48:30,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77616 states. [2024-11-08 16:48:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77616 to 77260. [2024-11-08 16:48:31,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77260 states, 77259 states have (on average 1.1891430124645672) internal successors, (91872), 77259 states have internal predecessors, (91872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77260 states to 77260 states and 91872 transitions. [2024-11-08 16:48:31,793 INFO L78 Accepts]: Start accepts. Automaton has 77260 states and 91872 transitions. Word has length 101 [2024-11-08 16:48:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:31,793 INFO L471 AbstractCegarLoop]: Abstraction has 77260 states and 91872 transitions. [2024-11-08 16:48:31,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 77260 states and 91872 transitions. [2024-11-08 16:48:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 16:48:31,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:31,800 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:31,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:48:32,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:32,001 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:32,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1517969609, now seen corresponding path program 1 times [2024-11-08 16:48:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760676624] [2024-11-08 16:48:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:32,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:32,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 16:48:32,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:32,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760676624] [2024-11-08 16:48:32,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760676624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:32,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:32,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:48:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17023421] [2024-11-08 16:48:32,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:32,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:48:32,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:32,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:48:32,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:32,195 INFO L87 Difference]: Start difference. First operand 77260 states and 91872 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:32,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:32,825 INFO L93 Difference]: Finished difference Result 117795 states and 139308 transitions. [2024-11-08 16:48:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:48:32,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-08 16:48:32,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:32,936 INFO L225 Difference]: With dead ends: 117795 [2024-11-08 16:48:32,936 INFO L226 Difference]: Without dead ends: 100685 [2024-11-08 16:48:32,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:48:32,961 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1156 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:32,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 455 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:48:33,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100685 states. [2024-11-08 16:48:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100685 to 77305. [2024-11-08 16:48:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77305 states, 77304 states have (on average 1.189123460622995) internal successors, (91924), 77304 states have internal predecessors, (91924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77305 states to 77305 states and 91924 transitions. [2024-11-08 16:48:34,506 INFO L78 Accepts]: Start accepts. Automaton has 77305 states and 91924 transitions. Word has length 103 [2024-11-08 16:48:34,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:34,506 INFO L471 AbstractCegarLoop]: Abstraction has 77305 states and 91924 transitions. [2024-11-08 16:48:34,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 77305 states and 91924 transitions. [2024-11-08 16:48:34,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:48:34,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:34,513 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:34,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-08 16:48:34,513 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:34,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:34,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1546415277, now seen corresponding path program 1 times [2024-11-08 16:48:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:34,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391654886] [2024-11-08 16:48:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:34,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:34,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:34,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391654886] [2024-11-08 16:48:34,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391654886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:48:34,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041109744] [2024-11-08 16:48:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:34,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:34,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:34,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:48:34,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:48:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:35,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:48:35,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:48:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:36,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:48:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041109744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:48:36,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:48:36,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 16:48:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075575157] [2024-11-08 16:48:36,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:48:36,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:48:36,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:48:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:48:36,298 INFO L87 Difference]: Start difference. First operand 77305 states and 91924 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:37,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:37,346 INFO L93 Difference]: Finished difference Result 178080 states and 211480 transitions. [2024-11-08 16:48:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:48:37,347 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 16:48:37,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:37,460 INFO L225 Difference]: With dead ends: 178080 [2024-11-08 16:48:37,460 INFO L226 Difference]: Without dead ends: 101482 [2024-11-08 16:48:37,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:48:37,498 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1456 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:37,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1030 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:48:37,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101482 states. [2024-11-08 16:48:38,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101482 to 86562. [2024-11-08 16:48:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86562 states, 86561 states have (on average 1.1878675153937686) internal successors, (102823), 86561 states have internal predecessors, (102823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86562 states to 86562 states and 102823 transitions. [2024-11-08 16:48:39,217 INFO L78 Accepts]: Start accepts. Automaton has 86562 states and 102823 transitions. Word has length 104 [2024-11-08 16:48:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:39,218 INFO L471 AbstractCegarLoop]: Abstraction has 86562 states and 102823 transitions. [2024-11-08 16:48:39,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:39,218 INFO L276 IsEmpty]: Start isEmpty. Operand 86562 states and 102823 transitions. [2024-11-08 16:48:39,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:48:39,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:39,229 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:39,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:48:39,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:39,430 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:39,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:39,431 INFO L85 PathProgramCache]: Analyzing trace with hash -364310100, now seen corresponding path program 1 times [2024-11-08 16:48:39,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:39,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504212930] [2024-11-08 16:48:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:39,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:39,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:39,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504212930] [2024-11-08 16:48:39,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504212930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:39,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:39,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:39,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135449268] [2024-11-08 16:48:39,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:39,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:39,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:39,561 INFO L87 Difference]: Start difference. First operand 86562 states and 102823 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:40,011 INFO L93 Difference]: Finished difference Result 120325 states and 142715 transitions. [2024-11-08 16:48:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:40,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-08 16:48:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:40,119 INFO L225 Difference]: With dead ends: 120325 [2024-11-08 16:48:40,119 INFO L226 Difference]: Without dead ends: 88256 [2024-11-08 16:48:40,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:40,150 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 72 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:40,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 538 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:48:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88256 states. [2024-11-08 16:48:41,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88256 to 84006. [2024-11-08 16:48:41,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84006 states, 84005 states have (on average 1.1845485387774537) internal successors, (99508), 84005 states have internal predecessors, (99508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84006 states to 84006 states and 99508 transitions. [2024-11-08 16:48:41,645 INFO L78 Accepts]: Start accepts. Automaton has 84006 states and 99508 transitions. Word has length 105 [2024-11-08 16:48:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:41,646 INFO L471 AbstractCegarLoop]: Abstraction has 84006 states and 99508 transitions. [2024-11-08 16:48:41,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 84006 states and 99508 transitions. [2024-11-08 16:48:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:48:41,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:41,653 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:41,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-08 16:48:41,653 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:41,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:41,654 INFO L85 PathProgramCache]: Analyzing trace with hash 158442809, now seen corresponding path program 1 times [2024-11-08 16:48:41,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:41,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246441452] [2024-11-08 16:48:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:42,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:42,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246441452] [2024-11-08 16:48:42,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246441452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:48:42,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493396086] [2024-11-08 16:48:42,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:42,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:42,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:48:42,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:48:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:43,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 16:48:43,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:48:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:44,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:48:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493396086] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:48:45,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:48:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 13] total 29 [2024-11-08 16:48:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781865045] [2024-11-08 16:48:45,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:48:45,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 16:48:45,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:45,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 16:48:45,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2024-11-08 16:48:45,900 INFO L87 Difference]: Start difference. First operand 84006 states and 99508 transitions. Second operand has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:49,644 INFO L93 Difference]: Finished difference Result 309673 states and 367736 transitions. [2024-11-08 16:48:49,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 16:48:49,645 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-08 16:48:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:49,970 INFO L225 Difference]: With dead ends: 309673 [2024-11-08 16:48:49,971 INFO L226 Difference]: Without dead ends: 241233 [2024-11-08 16:48:50,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=746, Invalid=2560, Unknown=0, NotChecked=0, Total=3306 [2024-11-08 16:48:50,040 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 4574 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4574 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:50,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4574 Valid, 3318 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 16:48:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241233 states. [2024-11-08 16:48:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241233 to 85328. [2024-11-08 16:48:53,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85328 states, 85327 states have (on average 1.1839863114840554) internal successors, (101026), 85327 states have internal predecessors, (101026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:53,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85328 states to 85328 states and 101026 transitions. [2024-11-08 16:48:53,243 INFO L78 Accepts]: Start accepts. Automaton has 85328 states and 101026 transitions. Word has length 105 [2024-11-08 16:48:53,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:53,244 INFO L471 AbstractCegarLoop]: Abstraction has 85328 states and 101026 transitions. [2024-11-08 16:48:53,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand 85328 states and 101026 transitions. [2024-11-08 16:48:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:48:53,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:53,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:53,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:48:53,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-08 16:48:53,455 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:53,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1932584356, now seen corresponding path program 1 times [2024-11-08 16:48:53,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:53,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423889374] [2024-11-08 16:48:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:53,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 16:48:53,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:53,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423889374] [2024-11-08 16:48:53,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423889374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:53,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:53,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:48:53,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805796470] [2024-11-08 16:48:53,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:53,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:48:53,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:53,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:48:53,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:48:53,873 INFO L87 Difference]: Start difference. First operand 85328 states and 101026 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:55,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:55,481 INFO L93 Difference]: Finished difference Result 219724 states and 260899 transitions. [2024-11-08 16:48:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 16:48:55,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 16:48:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:55,703 INFO L225 Difference]: With dead ends: 219724 [2024-11-08 16:48:55,704 INFO L226 Difference]: Without dead ends: 150426 [2024-11-08 16:48:55,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:48:55,734 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1088 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:55,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 994 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:48:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150426 states. [2024-11-08 16:48:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150426 to 84986. [2024-11-08 16:48:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84986 states, 84985 states have (on average 1.1841030770135907) internal successors, (100631), 84985 states have internal predecessors, (100631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84986 states to 84986 states and 100631 transitions. [2024-11-08 16:48:57,511 INFO L78 Accepts]: Start accepts. Automaton has 84986 states and 100631 transitions. Word has length 106 [2024-11-08 16:48:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:57,511 INFO L471 AbstractCegarLoop]: Abstraction has 84986 states and 100631 transitions. [2024-11-08 16:48:57,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 84986 states and 100631 transitions. [2024-11-08 16:48:57,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 16:48:57,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:57,525 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:57,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-08 16:48:57,526 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-08 16:48:57,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:57,527 INFO L85 PathProgramCache]: Analyzing trace with hash 267119185, now seen corresponding path program 1 times [2024-11-08 16:48:57,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:57,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512694863] [2024-11-08 16:48:57,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:57,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:58,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512694863] [2024-11-08 16:48:58,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512694863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:48:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026117748] [2024-11-08 16:48:58,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:58,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:58,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:58,555 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:48:58,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abb4687-7e5e-4309-ba2c-c1f489482de2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:48:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:58,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 16:48:58,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:49:01,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:49:01,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:49:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:49:02,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026117748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:49:02,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:49:02,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 12] total 34 [2024-11-08 16:49:02,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814285285] [2024-11-08 16:49:02,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:49:02,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 16:49:02,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:49:02,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 16:49:02,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 16:49:02,514 INFO L87 Difference]: Start difference. First operand 84986 states and 100631 transitions. Second operand has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:49:05,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:49:05,578 INFO L93 Difference]: Finished difference Result 190692 states and 226328 transitions. [2024-11-08 16:49:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 16:49:05,578 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-08 16:49:05,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:49:06,229 INFO L225 Difference]: With dead ends: 190692 [2024-11-08 16:49:06,229 INFO L226 Difference]: Without dead ends: 170776 [2024-11-08 16:49:06,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=520, Invalid=2450, Unknown=0, NotChecked=0, Total=2970 [2024-11-08 16:49:06,259 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1863 mSDsluCounter, 7149 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 7599 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:49:06,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 7599 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 16:49:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170776 states.