./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/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 dfa3eba44a9bea88c5e5172bb0d59f15b4500aac9e1ca0a62eab29a7e65f8827 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:23:34,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:23:34,964 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:23:34,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:23:34,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:23:35,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:23:35,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:23:35,032 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:23:35,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:23:35,033 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:23:35,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:23:35,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:23:35,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:23:35,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:23:35,040 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:23:35,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:23:35,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:23:35,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:23:35,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:23:35,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:23:35,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:23:35,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:23:35,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:23:35,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:23:35,048 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:23:35,048 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:23:35,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:23:35,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:23:35,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:23:35,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:23:35,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:23:35,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:23:35,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:23:35,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:23:35,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:23:35,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:23:35,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:23:35,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:23:35,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:23:35,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:23:35,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:23:35,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:23:35,057 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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa3eba44a9bea88c5e5172bb0d59f15b4500aac9e1ca0a62eab29a7e65f8827 [2024-11-08 19:23:35,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:23:35,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:23:35,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:23:35,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:23:35,451 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:23:35,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c Unable to find full path for "g++" [2024-11-08 19:23:37,996 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:23:38,683 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:23:38,686 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-08 19:23:38,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/data/603363259/0e7f17439d2f47548fa45cf4ced5468e/FLAG27d4b8dd4 [2024-11-08 19:23:38,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/data/603363259/0e7f17439d2f47548fa45cf4ced5468e [2024-11-08 19:23:38,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:23:38,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:23:38,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:23:38,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:23:38,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:23:38,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:23:38" (1/1) ... [2024-11-08 19:23:38,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436774fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:38, skipping insertion in model container [2024-11-08 19:23:38,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:23:38" (1/1) ... [2024-11-08 19:23:38,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:23:39,616 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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[26925,26938] [2024-11-08 19:23:39,700 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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[34215,34228] [2024-11-08 19:23:41,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:23:41,034 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:23:41,121 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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[26925,26938] [2024-11-08 19:23:41,137 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_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[34215,34228] [2024-11-08 19:23:41,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:23:42,030 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:23:42,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42 WrapperNode [2024-11-08 19:23:42,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:23:42,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:23:42,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:23:42,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:23:42,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:42,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:42,550 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5290 [2024-11-08 19:23:42,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:23:42,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:23:42,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:23:42,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:23:42,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:42,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:42,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,235 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 19:23:43,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:23:43,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:23:43,792 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:23:43,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:23:43,793 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (1/1) ... [2024-11-08 19:23:43,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:23:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:23:43,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:23:43,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db60032-2ba6-4f10-8e93-d46fbd9ff02b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:23:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:23:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:23:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:23:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:23:44,221 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:23:44,224 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:23:50,998 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-08 19:23:50,998 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:23:51,052 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:23:51,056 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 19:23:51,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:23:51 BoogieIcfgContainer [2024-11-08 19:23:51,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:23:51,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:23:51,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:23:51,067 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:23:51,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:23:38" (1/3) ... [2024-11-08 19:23:51,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c00faac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:23:51, skipping insertion in model container [2024-11-08 19:23:51,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:23:42" (2/3) ... [2024-11-08 19:23:51,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c00faac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:23:51, skipping insertion in model container [2024-11-08 19:23:51,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:23:51" (3/3) ... [2024-11-08 19:23:51,072 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-08 19:23:51,093 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:23:51,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:23:51,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:23:51,223 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;@b8223cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:23:51,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:23:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 19:23:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 19:23:51,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:23:51,250 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] [2024-11-08 19:23:51,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:23:51,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:23:51,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1569880149, now seen corresponding path program 1 times [2024-11-08 19:23:51,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:23:51,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143315392] [2024-11-08 19:23:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:23:51,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:23:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:23:51,705 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 19:23:51,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:23:51,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143315392] [2024-11-08 19:23:51,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143315392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:23:51,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:23:51,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:23:51,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114294570] [2024-11-08 19:23:51,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:23:51,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:23:51,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:23:51,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:23:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:23:51,759 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 19:23:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:23:51,884 INFO L93 Difference]: Finished difference Result 1829 states and 3468 transitions. [2024-11-08 19:23:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:23:51,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 19:23:51,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:23:51,927 INFO L225 Difference]: With dead ends: 1829 [2024-11-08 19:23:51,931 INFO L226 Difference]: Without dead ends: 883 [2024-11-08 19:23:51,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:23:51,945 INFO L432 NwaCegarLoop]: 1731 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:23:51,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:23:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-08 19:23:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-08 19:23:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8921679909194098) internal successors, (1667), 882 states have internal predecessors, (1667), 0 states have call successors, (0), 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 19:23:52,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1667 transitions. [2024-11-08 19:23:52,070 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1667 transitions. Word has length 30 [2024-11-08 19:23:52,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:23:52,071 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1667 transitions. [2024-11-08 19:23:52,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 19:23:52,072 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1667 transitions. [2024-11-08 19:23:52,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 19:23:52,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:23:52,075 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] [2024-11-08 19:23:52,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:23:52,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:23:52,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:23:52,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1435866643, now seen corresponding path program 1 times [2024-11-08 19:23:52,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:23:52,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710414063] [2024-11-08 19:23:52,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:23:52,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:23:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:23:52,540 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 19:23:52,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:23:52,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710414063] [2024-11-08 19:23:52,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710414063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:23:52,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:23:52,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:23:52,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385468801] [2024-11-08 19:23:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:23:52,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:23:52,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:23:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:23:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:23:52,544 INFO L87 Difference]: Start difference. First operand 883 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 19:23:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:23:52,770 INFO L93 Difference]: Finished difference Result 949 states and 1771 transitions. [2024-11-08 19:23:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:23:52,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 19:23:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:23:52,776 INFO L225 Difference]: With dead ends: 949 [2024-11-08 19:23:52,777 INFO L226 Difference]: Without dead ends: 883 [2024-11-08 19:23:52,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:23:52,779 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:23:52,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:23:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-08 19:23:52,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-08 19:23:52,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8229284903518728) internal successors, (1606), 882 states have internal predecessors, (1606), 0 states have call successors, (0), 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 19:23:52,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1606 transitions. [2024-11-08 19:23:52,822 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1606 transitions. Word has length 30 [2024-11-08 19:23:52,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:23:52,823 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1606 transitions. [2024-11-08 19:23:52,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 19:23:52,824 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1606 transitions. [2024-11-08 19:23:52,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 19:23:52,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:23:52,826 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] [2024-11-08 19:23:52,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:23:52,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:23:52,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:23:52,832 INFO L85 PathProgramCache]: Analyzing trace with hash -779273518, now seen corresponding path program 1 times [2024-11-08 19:23:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:23:52,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907145003] [2024-11-08 19:23:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:23:52,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:23:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:23:53,248 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 19:23:53,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:23:53,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907145003] [2024-11-08 19:23:53,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907145003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:23:53,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:23:53,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:23:53,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395227127] [2024-11-08 19:23:53,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:23:53,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:23:53,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:23:53,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:23:53,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:23:53,257 INFO L87 Difference]: Start difference. First operand 883 states and 1606 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 19:24:02,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:02,551 INFO L93 Difference]: Finished difference Result 3138 states and 5915 transitions. [2024-11-08 19:24:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:24:02,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 19:24:02,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:02,561 INFO L225 Difference]: With dead ends: 3138 [2024-11-08 19:24:02,562 INFO L226 Difference]: Without dead ends: 2385 [2024-11-08 19:24:02,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:24:02,565 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 2521 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:02,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 860 Invalid, 6507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-08 19:24:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-08 19:24:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2385. [2024-11-08 19:24:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2383 states have (on average 1.56105749055812) internal successors, (3720), 2384 states have internal predecessors, (3720), 0 states have call successors, (0), 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 19:24:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3720 transitions. [2024-11-08 19:24:02,682 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3720 transitions. Word has length 63 [2024-11-08 19:24:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:02,682 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3720 transitions. [2024-11-08 19:24:02,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 19:24:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3720 transitions. [2024-11-08 19:24:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 19:24:02,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:02,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:02,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:24:02,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:02,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1886064963, now seen corresponding path program 1 times [2024-11-08 19:24:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:02,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315267698] [2024-11-08 19:24:02,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:02,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:03,371 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 19:24:03,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:03,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315267698] [2024-11-08 19:24:03,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315267698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:03,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:03,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:24:03,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993436006] [2024-11-08 19:24:03,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:03,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:24:03,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:03,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:24:03,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:24:03,378 INFO L87 Difference]: Start difference. First operand 2385 states and 3720 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 19:24:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:04,291 INFO L93 Difference]: Finished difference Result 3377 states and 5320 transitions. [2024-11-08 19:24:04,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:24:04,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-08 19:24:04,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:04,311 INFO L225 Difference]: With dead ends: 3377 [2024-11-08 19:24:04,311 INFO L226 Difference]: Without dead ends: 3315 [2024-11-08 19:24:04,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:24:04,321 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 13495 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13495 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:04,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13495 Valid, 5651 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:24:04,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2024-11-08 19:24:04,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 2445. [2024-11-08 19:24:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2443 states have (on average 1.5624232501023332) internal successors, (3817), 2444 states have internal predecessors, (3817), 0 states have call successors, (0), 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 19:24:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 3817 transitions. [2024-11-08 19:24:04,419 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 3817 transitions. Word has length 90 [2024-11-08 19:24:04,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:04,421 INFO L471 AbstractCegarLoop]: Abstraction has 2445 states and 3817 transitions. [2024-11-08 19:24:04,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 19:24:04,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 3817 transitions. [2024-11-08 19:24:04,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 19:24:04,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:04,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:04,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:24:04,430 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:04,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1383457805, now seen corresponding path program 1 times [2024-11-08 19:24:04,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:04,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953096159] [2024-11-08 19:24:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:04,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:04,654 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 19:24:04,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:04,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953096159] [2024-11-08 19:24:04,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953096159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:04,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:04,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:04,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951390873] [2024-11-08 19:24:04,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:04,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:04,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:04,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:04,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:04,660 INFO L87 Difference]: Start difference. First operand 2445 states and 3817 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:24:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:04,754 INFO L93 Difference]: Finished difference Result 2678 states and 4192 transitions. [2024-11-08 19:24:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:04,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:24:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:04,766 INFO L225 Difference]: With dead ends: 2678 [2024-11-08 19:24:04,766 INFO L226 Difference]: Without dead ends: 2556 [2024-11-08 19:24:04,768 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 19:24:04,769 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:04,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:04,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-11-08 19:24:04,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2552. [2024-11-08 19:24:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.5635294117647058) internal successors, (3987), 2551 states have internal predecessors, (3987), 0 states have call successors, (0), 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 19:24:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3987 transitions. [2024-11-08 19:24:04,853 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3987 transitions. Word has length 92 [2024-11-08 19:24:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:04,854 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3987 transitions. [2024-11-08 19:24:04,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:24:04,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3987 transitions. [2024-11-08 19:24:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 19:24:04,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:04,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:04,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:24:04,857 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:04,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:04,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1316964293, now seen corresponding path program 1 times [2024-11-08 19:24:04,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:04,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894629065] [2024-11-08 19:24:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:04,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:05,674 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 19:24:05,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:05,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894629065] [2024-11-08 19:24:05,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894629065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:05,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:05,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:24:05,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013931131] [2024-11-08 19:24:05,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:05,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:24:05,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:05,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:24:05,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:24:05,678 INFO L87 Difference]: Start difference. First operand 2552 states and 3987 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:24:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:06,388 INFO L93 Difference]: Finished difference Result 2783 states and 4355 transitions. [2024-11-08 19:24:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:24:06,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:24:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:06,403 INFO L225 Difference]: With dead ends: 2783 [2024-11-08 19:24:06,403 INFO L226 Difference]: Without dead ends: 2554 [2024-11-08 19:24:06,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:24:06,408 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 4611 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4611 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:06,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4611 Valid, 2282 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:24:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2024-11-08 19:24:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2552. [2024-11-08 19:24:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.5627450980392157) internal successors, (3985), 2551 states have internal predecessors, (3985), 0 states have call successors, (0), 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 19:24:06,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3985 transitions. [2024-11-08 19:24:06,496 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3985 transitions. Word has length 92 [2024-11-08 19:24:06,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:06,496 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3985 transitions. [2024-11-08 19:24:06,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:24:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3985 transitions. [2024-11-08 19:24:06,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 19:24:06,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:06,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:06,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:24:06,499 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:06,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1709057062, now seen corresponding path program 1 times [2024-11-08 19:24:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:06,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341152326] [2024-11-08 19:24:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:06,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:06,891 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 19:24:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341152326] [2024-11-08 19:24:06,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341152326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:06,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:06,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:24:06,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860419333] [2024-11-08 19:24:06,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:06,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:24:06,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:06,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:24:06,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:24:06,894 INFO L87 Difference]: Start difference. First operand 2552 states and 3985 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 19:24:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:06,959 INFO L93 Difference]: Finished difference Result 2560 states and 3994 transitions. [2024-11-08 19:24:06,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:24:06,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 19:24:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:06,971 INFO L225 Difference]: With dead ends: 2560 [2024-11-08 19:24:06,972 INFO L226 Difference]: Without dead ends: 2558 [2024-11-08 19:24:06,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:24:06,977 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:06,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2024-11-08 19:24:07,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2558. [2024-11-08 19:24:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2556 states have (on average 1.5610328638497653) internal successors, (3990), 2557 states have internal predecessors, (3990), 0 states have call successors, (0), 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 19:24:07,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3990 transitions. [2024-11-08 19:24:07,048 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3990 transitions. Word has length 93 [2024-11-08 19:24:07,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:07,049 INFO L471 AbstractCegarLoop]: Abstraction has 2558 states and 3990 transitions. [2024-11-08 19:24:07,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 19:24:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3990 transitions. [2024-11-08 19:24:07,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:24:07,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:07,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:07,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:24:07,053 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:07,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:07,056 INFO L85 PathProgramCache]: Analyzing trace with hash -290375813, now seen corresponding path program 1 times [2024-11-08 19:24:07,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:07,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883843796] [2024-11-08 19:24:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:07,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:07,201 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 19:24:07,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:07,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883843796] [2024-11-08 19:24:07,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883843796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:07,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:07,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:07,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665195959] [2024-11-08 19:24:07,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:07,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:07,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:07,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:07,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:07,204 INFO L87 Difference]: Start difference. First operand 2558 states and 3990 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:07,276 INFO L93 Difference]: Finished difference Result 3012 states and 4702 transitions. [2024-11-08 19:24:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:07,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:07,288 INFO L225 Difference]: With dead ends: 3012 [2024-11-08 19:24:07,288 INFO L226 Difference]: Without dead ends: 2777 [2024-11-08 19:24:07,290 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 19:24:07,291 INFO L432 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:07,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:07,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2024-11-08 19:24:07,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2775. [2024-11-08 19:24:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2773 states have (on average 1.560403894698882) internal successors, (4327), 2774 states have internal predecessors, (4327), 0 states have call successors, (0), 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 19:24:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 4327 transitions. [2024-11-08 19:24:07,379 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 4327 transitions. Word has length 94 [2024-11-08 19:24:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:07,380 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 4327 transitions. [2024-11-08 19:24:07,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 4327 transitions. [2024-11-08 19:24:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:24:07,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:07,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:07,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:24:07,382 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:07,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:07,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1651693691, now seen corresponding path program 1 times [2024-11-08 19:24:07,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:07,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962223069] [2024-11-08 19:24:07,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:07,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:07,513 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 19:24:07,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:07,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962223069] [2024-11-08 19:24:07,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962223069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:07,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:07,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:07,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724174626] [2024-11-08 19:24:07,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:07,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:07,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:07,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:07,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:07,517 INFO L87 Difference]: Start difference. First operand 2775 states and 4327 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:07,594 INFO L93 Difference]: Finished difference Result 3647 states and 5685 transitions. [2024-11-08 19:24:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:07,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:07,607 INFO L225 Difference]: With dead ends: 3647 [2024-11-08 19:24:07,607 INFO L226 Difference]: Without dead ends: 3195 [2024-11-08 19:24:07,609 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 19:24:07,609 INFO L432 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:07,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:07,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2024-11-08 19:24:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3193. [2024-11-08 19:24:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 3191 states have (on average 1.5571921027890943) internal successors, (4969), 3192 states have internal predecessors, (4969), 0 states have call successors, (0), 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 19:24:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 4969 transitions. [2024-11-08 19:24:07,704 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 4969 transitions. Word has length 94 [2024-11-08 19:24:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:07,705 INFO L471 AbstractCegarLoop]: Abstraction has 3193 states and 4969 transitions. [2024-11-08 19:24:07,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 4969 transitions. [2024-11-08 19:24:07,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:24:07,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:07,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:07,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:24:07,707 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:07,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2078464635, now seen corresponding path program 1 times [2024-11-08 19:24:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:07,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870477618] [2024-11-08 19:24:07,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:07,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:07,839 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 19:24:07,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:07,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870477618] [2024-11-08 19:24:07,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870477618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:07,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:07,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:07,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967629378] [2024-11-08 19:24:07,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:07,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:07,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:07,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:07,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:07,842 INFO L87 Difference]: Start difference. First operand 3193 states and 4969 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:07,934 INFO L93 Difference]: Finished difference Result 4869 states and 7555 transitions. [2024-11-08 19:24:07,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:07,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:07,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:07,961 INFO L225 Difference]: With dead ends: 4869 [2024-11-08 19:24:07,962 INFO L226 Difference]: Without dead ends: 3999 [2024-11-08 19:24:07,965 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 19:24:07,966 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:07,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2024-11-08 19:24:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3997. [2024-11-08 19:24:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3997 states, 3995 states have (on average 1.5491864831038797) internal successors, (6189), 3996 states have internal predecessors, (6189), 0 states have call successors, (0), 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 19:24:08,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 6189 transitions. [2024-11-08 19:24:08,177 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 6189 transitions. Word has length 94 [2024-11-08 19:24:08,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:08,177 INFO L471 AbstractCegarLoop]: Abstraction has 3997 states and 6189 transitions. [2024-11-08 19:24:08,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 6189 transitions. [2024-11-08 19:24:08,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:24:08,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:08,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:08,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:24:08,180 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:08,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:08,180 INFO L85 PathProgramCache]: Analyzing trace with hash -978240645, now seen corresponding path program 1 times [2024-11-08 19:24:08,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:08,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715559729] [2024-11-08 19:24:08,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:08,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:08,321 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 19:24:08,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:08,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715559729] [2024-11-08 19:24:08,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715559729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:08,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:08,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:08,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561490547] [2024-11-08 19:24:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:08,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:08,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:08,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:08,324 INFO L87 Difference]: Start difference. First operand 3997 states and 6189 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:08,463 INFO L93 Difference]: Finished difference Result 7217 states and 11103 transitions. [2024-11-08 19:24:08,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:08,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:08,494 INFO L225 Difference]: With dead ends: 7217 [2024-11-08 19:24:08,494 INFO L226 Difference]: Without dead ends: 5543 [2024-11-08 19:24:08,501 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 19:24:08,502 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:08,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:08,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2024-11-08 19:24:08,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 5541. [2024-11-08 19:24:08,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 5539 states have (on average 1.5347535656255642) internal successors, (8501), 5540 states have internal predecessors, (8501), 0 states have call successors, (0), 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 19:24:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 8501 transitions. [2024-11-08 19:24:08,727 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 8501 transitions. Word has length 94 [2024-11-08 19:24:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:08,728 INFO L471 AbstractCegarLoop]: Abstraction has 5541 states and 8501 transitions. [2024-11-08 19:24:08,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 8501 transitions. [2024-11-08 19:24:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:24:08,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:08,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:08,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:24:08,733 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:08,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1101257851, now seen corresponding path program 1 times [2024-11-08 19:24:08,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:08,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753600453] [2024-11-08 19:24:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:08,868 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 19:24:08,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:08,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753600453] [2024-11-08 19:24:08,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753600453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:08,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:08,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:08,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722322087] [2024-11-08 19:24:08,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:08,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:08,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:08,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:08,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:08,872 INFO L87 Difference]: Start difference. First operand 5541 states and 8501 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:09,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:09,073 INFO L93 Difference]: Finished difference Result 11721 states and 17815 transitions. [2024-11-08 19:24:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:09,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:09,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:09,098 INFO L225 Difference]: With dead ends: 11721 [2024-11-08 19:24:09,098 INFO L226 Difference]: Without dead ends: 8503 [2024-11-08 19:24:09,103 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 19:24:09,104 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:09,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:09,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8503 states. [2024-11-08 19:24:09,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8503 to 8501. [2024-11-08 19:24:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8501 states, 8499 states have (on average 1.5141781386045416) internal successors, (12869), 8500 states have internal predecessors, (12869), 0 states have call successors, (0), 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 19:24:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8501 states to 8501 states and 12869 transitions. [2024-11-08 19:24:09,407 INFO L78 Accepts]: Start accepts. Automaton has 8501 states and 12869 transitions. Word has length 94 [2024-11-08 19:24:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:09,407 INFO L471 AbstractCegarLoop]: Abstraction has 8501 states and 12869 transitions. [2024-11-08 19:24:09,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 8501 states and 12869 transitions. [2024-11-08 19:24:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:24:09,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:09,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:09,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:24:09,410 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:09,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:09,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1412776581, now seen corresponding path program 1 times [2024-11-08 19:24:09,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:09,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033771108] [2024-11-08 19:24:09,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:09,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:09,544 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 19:24:09,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:09,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033771108] [2024-11-08 19:24:09,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033771108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:09,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:09,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:09,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838895977] [2024-11-08 19:24:09,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:09,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:09,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:09,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:09,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:09,547 INFO L87 Difference]: Start difference. First operand 8501 states and 12869 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:10,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:10,022 INFO L93 Difference]: Finished difference Result 20345 states and 30471 transitions. [2024-11-08 19:24:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:10,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:10,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:10,059 INFO L225 Difference]: With dead ends: 20345 [2024-11-08 19:24:10,060 INFO L226 Difference]: Without dead ends: 14167 [2024-11-08 19:24:10,068 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 19:24:10,070 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:10,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14167 states. [2024-11-08 19:24:10,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14167 to 14165. [2024-11-08 19:24:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14165 states, 14163 states have (on average 1.4893031137470876) internal successors, (21093), 14164 states have internal predecessors, (21093), 0 states have call successors, (0), 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 19:24:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14165 states to 14165 states and 21093 transitions. [2024-11-08 19:24:10,634 INFO L78 Accepts]: Start accepts. Automaton has 14165 states and 21093 transitions. Word has length 94 [2024-11-08 19:24:10,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:10,635 INFO L471 AbstractCegarLoop]: Abstraction has 14165 states and 21093 transitions. [2024-11-08 19:24:10,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:10,636 INFO L276 IsEmpty]: Start isEmpty. Operand 14165 states and 21093 transitions. [2024-11-08 19:24:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:24:10,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:10,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:10,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:24:10,638 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:10,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:10,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1814608251, now seen corresponding path program 1 times [2024-11-08 19:24:10,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:10,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110722721] [2024-11-08 19:24:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:10,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:10,782 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 19:24:10,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110722721] [2024-11-08 19:24:10,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110722721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:10,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:10,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:10,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361053112] [2024-11-08 19:24:10,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:10,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:10,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:10,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:10,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:10,785 INFO L87 Difference]: Start difference. First operand 14165 states and 21093 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:11,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:11,663 INFO L93 Difference]: Finished difference Result 36825 states and 54247 transitions. [2024-11-08 19:24:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:11,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:11,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:11,742 INFO L225 Difference]: With dead ends: 36825 [2024-11-08 19:24:11,742 INFO L226 Difference]: Without dead ends: 24983 [2024-11-08 19:24:11,762 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 19:24:11,764 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:11,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:11,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24983 states. [2024-11-08 19:24:12,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24983 to 24981. [2024-11-08 19:24:12,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24981 states, 24979 states have (on average 1.4619080027222868) internal successors, (36517), 24980 states have internal predecessors, (36517), 0 states have call successors, (0), 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 19:24:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24981 states to 24981 states and 36517 transitions. [2024-11-08 19:24:13,055 INFO L78 Accepts]: Start accepts. Automaton has 24981 states and 36517 transitions. Word has length 94 [2024-11-08 19:24:13,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:13,056 INFO L471 AbstractCegarLoop]: Abstraction has 24981 states and 36517 transitions. [2024-11-08 19:24:13,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:24:13,056 INFO L276 IsEmpty]: Start isEmpty. Operand 24981 states and 36517 transitions. [2024-11-08 19:24:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 19:24:13,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:13,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:24:13,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:24:13,059 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:13,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:13,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1683181226, now seen corresponding path program 1 times [2024-11-08 19:24:13,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:13,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74767208] [2024-11-08 19:24:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:13,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:13,195 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 19:24:13,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:13,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74767208] [2024-11-08 19:24:13,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74767208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:13,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:13,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:24:13,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542212419] [2024-11-08 19:24:13,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:13,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:24:13,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:13,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:24:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:24:13,197 INFO L87 Difference]: Start difference. First operand 24981 states and 36517 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 19:24:14,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:14,138 INFO L93 Difference]: Finished difference Result 48540 states and 71083 transitions. [2024-11-08 19:24:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:24:14,139 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 96 [2024-11-08 19:24:14,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:14,225 INFO L225 Difference]: With dead ends: 48540 [2024-11-08 19:24:14,226 INFO L226 Difference]: Without dead ends: 35993 [2024-11-08 19:24:14,248 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 19:24:14,249 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:14,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:24:14,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35993 states. [2024-11-08 19:24:15,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35993 to 35991. [2024-11-08 19:24:15,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35991 states, 35989 states have (on average 1.4521937258606796) internal successors, (52263), 35990 states have internal predecessors, (52263), 0 states have call successors, (0), 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 19:24:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35991 states to 35991 states and 52263 transitions. [2024-11-08 19:24:15,745 INFO L78 Accepts]: Start accepts. Automaton has 35991 states and 52263 transitions. Word has length 96 [2024-11-08 19:24:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:15,746 INFO L471 AbstractCegarLoop]: Abstraction has 35991 states and 52263 transitions. [2024-11-08 19:24:15,746 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 19:24:15,746 INFO L276 IsEmpty]: Start isEmpty. Operand 35991 states and 52263 transitions. [2024-11-08 19:24:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 19:24:15,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:15,754 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:24:15,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:24:15,754 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:15,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2033252381, now seen corresponding path program 1 times [2024-11-08 19:24:15,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:15,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915236884] [2024-11-08 19:24:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:15,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:24:16,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:16,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915236884] [2024-11-08 19:24:16,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915236884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:16,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:16,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:24:16,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513282614] [2024-11-08 19:24:16,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:16,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:24:16,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:24:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:24:16,385 INFO L87 Difference]: Start difference. First operand 35991 states and 52263 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 19:24:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:23,477 INFO L93 Difference]: Finished difference Result 312105 states and 450864 transitions. [2024-11-08 19:24:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:24:23,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 119 [2024-11-08 19:24:23,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:24,247 INFO L225 Difference]: With dead ends: 312105 [2024-11-08 19:24:24,247 INFO L226 Difference]: Without dead ends: 278439 [2024-11-08 19:24:24,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:24:24,649 INFO L432 NwaCegarLoop]: 1709 mSDtfsCounter, 11752 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11752 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:24,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11752 Valid, 5086 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:24:24,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278439 states. [2024-11-08 19:24:29,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278439 to 69655. [2024-11-08 19:24:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69655 states, 69653 states have (on average 1.4431395632636068) internal successors, (100519), 69654 states have internal predecessors, (100519), 0 states have call successors, (0), 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 19:24:29,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69655 states to 69655 states and 100519 transitions. [2024-11-08 19:24:29,719 INFO L78 Accepts]: Start accepts. Automaton has 69655 states and 100519 transitions. Word has length 119 [2024-11-08 19:24:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:29,722 INFO L471 AbstractCegarLoop]: Abstraction has 69655 states and 100519 transitions. [2024-11-08 19:24:29,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 19:24:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 69655 states and 100519 transitions. [2024-11-08 19:24:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 19:24:29,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:29,737 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:24:29,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:24:29,738 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:29,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:29,738 INFO L85 PathProgramCache]: Analyzing trace with hash -319645411, now seen corresponding path program 1 times [2024-11-08 19:24:29,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:29,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155377687] [2024-11-08 19:24:29,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:29,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:30,223 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 19:24:30,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:30,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155377687] [2024-11-08 19:24:30,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155377687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:30,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:30,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:24:30,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292565683] [2024-11-08 19:24:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:30,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:24:30,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:30,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:24:30,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:24:30,227 INFO L87 Difference]: Start difference. First operand 69655 states and 100519 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 19:24:38,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:38,751 INFO L93 Difference]: Finished difference Result 345769 states and 499120 transitions. [2024-11-08 19:24:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:24:38,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 119 [2024-11-08 19:24:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:39,338 INFO L225 Difference]: With dead ends: 345769 [2024-11-08 19:24:39,338 INFO L226 Difference]: Without dead ends: 312103 [2024-11-08 19:24:39,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:24:39,697 INFO L432 NwaCegarLoop]: 1706 mSDtfsCounter, 11802 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 4880 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:39,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 4880 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:24:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312103 states. [2024-11-08 19:24:45,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312103 to 120215. [2024-11-08 19:24:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120215 states, 120213 states have (on average 1.4356433996323192) internal successors, (172583), 120214 states have internal predecessors, (172583), 0 states have call successors, (0), 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 19:24:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120215 states to 120215 states and 172583 transitions. [2024-11-08 19:24:45,989 INFO L78 Accepts]: Start accepts. Automaton has 120215 states and 172583 transitions. Word has length 119 [2024-11-08 19:24:45,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:24:45,990 INFO L471 AbstractCegarLoop]: Abstraction has 120215 states and 172583 transitions. [2024-11-08 19:24:45,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 19:24:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 120215 states and 172583 transitions. [2024-11-08 19:24:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 19:24:46,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:24:46,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:24:46,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:24:46,003 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:24:46,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:24:46,004 INFO L85 PathProgramCache]: Analyzing trace with hash 107125533, now seen corresponding path program 1 times [2024-11-08 19:24:46,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:24:46,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831255445] [2024-11-08 19:24:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:24:46,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:24:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:24:46,417 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 19:24:46,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:24:46,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831255445] [2024-11-08 19:24:46,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831255445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:24:46,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:24:46,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:24:46,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272211356] [2024-11-08 19:24:46,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:24:46,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:24:46,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:24:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:24:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:24:46,421 INFO L87 Difference]: Start difference. First operand 120215 states and 172583 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 19:24:55,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:24:55,800 INFO L93 Difference]: Finished difference Result 379433 states and 547376 transitions. [2024-11-08 19:24:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:24:55,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 119 [2024-11-08 19:24:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:24:56,256 INFO L225 Difference]: With dead ends: 379433 [2024-11-08 19:24:56,256 INFO L226 Difference]: Without dead ends: 345767 [2024-11-08 19:24:56,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:24:56,334 INFO L432 NwaCegarLoop]: 1703 mSDtfsCounter, 11875 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11875 SdHoareTripleChecker+Valid, 4874 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:24:56,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11875 Valid, 4874 Invalid, 231 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:24:56,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345767 states.