./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.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_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/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_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/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_ff8414e0-ac25-4620-850f-b0f73c1770f5/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 1b5bedda6fafe9d5e27c46cd442327641e760ea4d9632bf3cdc5cb7e6cff3dd5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:34:40,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:34:40,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:34:40,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:34:40,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:34:40,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:34:40,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:34:40,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:34:40,806 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:34:40,807 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:34:40,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:34:40,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:34:40,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:34:40,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:34:40,809 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:34:40,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:34:40,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:34:40,811 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:34:40,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:34:40,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:34:40,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:34:40,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:34:40,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:34:40,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:34:40,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:34:40,820 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:34:40,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:34:40,821 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:34:40,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:34:40,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:34:40,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:34:40,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:34:40,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:40,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:34:40,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:34:40,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:34:40,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:34:40,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:34:40,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:34:40,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:34:40,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:34:40,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:34:40,827 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_ff8414e0-ac25-4620-850f-b0f73c1770f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b5bedda6fafe9d5e27c46cd442327641e760ea4d9632bf3cdc5cb7e6cff3dd5 [2024-11-08 17:34:41,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:34:41,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:34:41,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:34:41,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:34:41,208 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:34:41,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c Unable to find full path for "g++" [2024-11-08 17:34:43,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:34:43,770 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:34:43,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c [2024-11-08 17:34:43,817 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/data/f9ac75bdd/919adc8531c24b07bad7935355474de2/FLAGd6fe1972c [2024-11-08 17:34:43,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/data/f9ac75bdd/919adc8531c24b07bad7935355474de2 [2024-11-08 17:34:43,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:34:43,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:34:43,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:43,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:34:43,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:34:43,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:43" (1/1) ... [2024-11-08 17:34:43,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735a0716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:43, skipping insertion in model container [2024-11-08 17:34:43,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:43" (1/1) ... [2024-11-08 17:34:44,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:34:44,405 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_ff8414e0-ac25-4620-850f-b0f73c1770f5/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[15482,15495] [2024-11-08 17:34:44,450 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_ff8414e0-ac25-4620-850f-b0f73c1770f5/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[18299,18312] [2024-11-08 17:34:45,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:45,405 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:34:45,463 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_ff8414e0-ac25-4620-850f-b0f73c1770f5/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[15482,15495] [2024-11-08 17:34:45,468 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[18299,18312] [2024-11-08 17:34:46,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:46,160 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:34:46,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46 WrapperNode [2024-11-08 17:34:46,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:46,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:46,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:34:46,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:34:46,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:46,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:46,601 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-08 17:34:46,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:46,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:34:46,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:34:46,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:34:46,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:46,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:46,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:46,908 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 17:34:46,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:46,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:47,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:47,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:47,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:47,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:47,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:34:47,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:34:47,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:34:47,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:34:47,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (1/1) ... [2024-11-08 17:34:47,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:47,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:47,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:34:47,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:34:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:34:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:34:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:34:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:34:47,561 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:34:47,563 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:34:53,341 INFO L? ?]: Removed 750 outVars from TransFormulas that were not future-live. [2024-11-08 17:34:53,341 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:34:53,394 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:34:53,397 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:34:53,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:34:53 BoogieIcfgContainer [2024-11-08 17:34:53,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:34:53,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:34:53,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:34:53,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:34:53,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:34:43" (1/3) ... [2024-11-08 17:34:53,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10550733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:34:53, skipping insertion in model container [2024-11-08 17:34:53,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:46" (2/3) ... [2024-11-08 17:34:53,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10550733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:34:53, skipping insertion in model container [2024-11-08 17:34:53,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:34:53" (3/3) ... [2024-11-08 17:34:53,410 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c [2024-11-08 17:34:53,432 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:34:53,433 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:34:53,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:34:53,563 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;@57ddb546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:34:53,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:34:53,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 0 states have call successors, (0), 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 17:34:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 17:34:53,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:34:53,583 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] [2024-11-08 17:34:53,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:34:53,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash -650934540, now seen corresponding path program 1 times [2024-11-08 17:34:53,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:53,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938712992] [2024-11-08 17:34:53,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:53,941 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 17:34:53,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:53,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938712992] [2024-11-08 17:34:53,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938712992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:53,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:53,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:34:53,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381782064] [2024-11-08 17:34:53,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:53,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:34:53,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:34:53,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:34:53,977 INFO L87 Difference]: Start difference. First operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 17:34:58,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:34:58,450 INFO L93 Difference]: Finished difference Result 2539 states and 4886 transitions. [2024-11-08 17:34:58,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:34:58,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-08 17:34:58,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:34:58,476 INFO L225 Difference]: With dead ends: 2539 [2024-11-08 17:34:58,476 INFO L226 Difference]: Without dead ends: 1600 [2024-11-08 17:34:58,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:34:58,485 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 979 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:34:58,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 651 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 17:34:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-08 17:34:58,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-11-08 17:34:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.6458072590738424) internal successors, (2630), 1599 states have internal predecessors, (2630), 0 states have call successors, (0), 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 17:34:58,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2630 transitions. [2024-11-08 17:34:58,603 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2630 transitions. Word has length 24 [2024-11-08 17:34:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:34:58,603 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2630 transitions. [2024-11-08 17:34:58,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 17:34:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2630 transitions. [2024-11-08 17:34:58,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 17:34:58,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:34:58,606 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] [2024-11-08 17:34:58,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:34:58,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:34:58,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:58,607 INFO L85 PathProgramCache]: Analyzing trace with hash -388710953, now seen corresponding path program 1 times [2024-11-08 17:34:58,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:58,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700118974] [2024-11-08 17:34:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:58,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:58,842 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 17:34:58,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:58,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700118974] [2024-11-08 17:34:58,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700118974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:58,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:58,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:34:58,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801519478] [2024-11-08 17:34:58,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:58,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:34:58,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:58,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:34:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:34:58,850 INFO L87 Difference]: Start difference. First operand 1600 states and 2630 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 17:34:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:34:58,964 INFO L93 Difference]: Finished difference Result 1653 states and 2712 transitions. [2024-11-08 17:34:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:34:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-08 17:34:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:34:58,971 INFO L225 Difference]: With dead ends: 1653 [2024-11-08 17:34:58,972 INFO L226 Difference]: Without dead ends: 1600 [2024-11-08 17:34:58,973 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 17:34:58,974 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:34:58,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6359 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:34:58,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-08 17:34:59,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-11-08 17:34:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.620775969962453) internal successors, (2590), 1599 states have internal predecessors, (2590), 0 states have call successors, (0), 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 17:34:59,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2590 transitions. [2024-11-08 17:34:59,024 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2590 transitions. Word has length 27 [2024-11-08 17:34:59,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:34:59,025 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2590 transitions. [2024-11-08 17:34:59,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 17:34:59,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2590 transitions. [2024-11-08 17:34:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 17:34:59,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:34:59,030 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:59,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:34:59,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:34:59,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:59,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1388667403, now seen corresponding path program 1 times [2024-11-08 17:34:59,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:59,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216049906] [2024-11-08 17:34:59,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:59,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:59,424 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 17:34:59,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:59,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216049906] [2024-11-08 17:34:59,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216049906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:59,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:59,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:34:59,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534408351] [2024-11-08 17:34:59,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:59,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:34:59,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:59,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:34:59,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:34:59,428 INFO L87 Difference]: Start difference. First operand 1600 states and 2590 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:59,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:34:59,836 INFO L93 Difference]: Finished difference Result 2188 states and 3526 transitions. [2024-11-08 17:34:59,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:34:59,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 17:34:59,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:34:59,845 INFO L225 Difference]: With dead ends: 2188 [2024-11-08 17:34:59,845 INFO L226 Difference]: Without dead ends: 2139 [2024-11-08 17:34:59,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:34:59,848 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 9710 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9710 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:34:59,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9710 Valid, 3724 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:34:59,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2024-11-08 17:34:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1647. [2024-11-08 17:34:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1645 states have (on average 1.6200607902735562) internal successors, (2665), 1646 states have internal predecessors, (2665), 0 states have call successors, (0), 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 17:34:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2665 transitions. [2024-11-08 17:34:59,890 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2665 transitions. Word has length 66 [2024-11-08 17:34:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:34:59,891 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2665 transitions. [2024-11-08 17:34:59,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2665 transitions. [2024-11-08 17:34:59,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 17:34:59,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:34:59,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:59,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:34:59,894 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:34:59,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:59,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1653818299, now seen corresponding path program 1 times [2024-11-08 17:34:59,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:59,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650009908] [2024-11-08 17:34:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:59,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:00,022 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 17:35:00,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:00,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650009908] [2024-11-08 17:35:00,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650009908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:00,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:00,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:00,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169374379] [2024-11-08 17:35:00,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:00,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:00,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:00,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:00,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:00,025 INFO L87 Difference]: Start difference. First operand 1647 states and 2665 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:00,075 INFO L93 Difference]: Finished difference Result 1828 states and 2952 transitions. [2024-11-08 17:35:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 17:35:00,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:00,083 INFO L225 Difference]: With dead ends: 1828 [2024-11-08 17:35:00,083 INFO L226 Difference]: Without dead ends: 1732 [2024-11-08 17:35:00,088 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 17:35:00,090 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1490 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:00,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1634 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:00,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-08 17:35:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-11-08 17:35:00,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.6174768518518519) internal successors, (2795), 1729 states have internal predecessors, (2795), 0 states have call successors, (0), 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 17:35:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2795 transitions. [2024-11-08 17:35:00,137 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2795 transitions. Word has length 68 [2024-11-08 17:35:00,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:00,139 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2795 transitions. [2024-11-08 17:35:00,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2795 transitions. [2024-11-08 17:35:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 17:35:00,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:00,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:00,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:35:00,146 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:00,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:00,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1720311811, now seen corresponding path program 1 times [2024-11-08 17:35:00,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:00,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858899413] [2024-11-08 17:35:00,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:00,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:00,737 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 17:35:00,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:00,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858899413] [2024-11-08 17:35:00,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858899413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:00,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:00,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:00,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59893928] [2024-11-08 17:35:00,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:00,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:00,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:00,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:00,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:00,742 INFO L87 Difference]: Start difference. First operand 1730 states and 2795 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:01,098 INFO L93 Difference]: Finished difference Result 1911 states and 3079 transitions. [2024-11-08 17:35:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 17:35:01,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:01,105 INFO L225 Difference]: With dead ends: 1911 [2024-11-08 17:35:01,105 INFO L226 Difference]: Without dead ends: 1732 [2024-11-08 17:35:01,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:35:01,107 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 8992 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8992 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:01,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8992 Valid, 1928 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:01,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-08 17:35:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-11-08 17:35:01,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.6163194444444444) internal successors, (2793), 1729 states have internal predecessors, (2793), 0 states have call successors, (0), 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 17:35:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2793 transitions. [2024-11-08 17:35:01,154 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2793 transitions. Word has length 68 [2024-11-08 17:35:01,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:01,156 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2793 transitions. [2024-11-08 17:35:01,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:01,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2793 transitions. [2024-11-08 17:35:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 17:35:01,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:01,158 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] [2024-11-08 17:35:01,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:35:01,158 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:01,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1375335590, now seen corresponding path program 1 times [2024-11-08 17:35:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:01,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617190485] [2024-11-08 17:35:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:01,489 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 17:35:01,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:01,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617190485] [2024-11-08 17:35:01,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617190485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:01,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:01,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:35:01,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653557523] [2024-11-08 17:35:01,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:01,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:35:01,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:01,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:35:01,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:35:01,491 INFO L87 Difference]: Start difference. First operand 1730 states and 2793 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 17:35:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:01,552 INFO L93 Difference]: Finished difference Result 1738 states and 2802 transitions. [2024-11-08 17:35:01,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:35:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-08 17:35:01,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:01,559 INFO L225 Difference]: With dead ends: 1738 [2024-11-08 17:35:01,560 INFO L226 Difference]: Without dead ends: 1736 [2024-11-08 17:35:01,561 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 17:35:01,562 INFO L432 NwaCegarLoop]: 1560 mSDtfsCounter, 0 mSDsluCounter, 4671 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6231 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 17:35:01,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6231 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-08 17:35:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-11-08 17:35:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1734 states have (on average 1.6136101499423299) internal successors, (2798), 1735 states have internal predecessors, (2798), 0 states have call successors, (0), 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 17:35:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2798 transitions. [2024-11-08 17:35:01,605 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2798 transitions. Word has length 69 [2024-11-08 17:35:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:01,606 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2798 transitions. [2024-11-08 17:35:01,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 17:35:01,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2798 transitions. [2024-11-08 17:35:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:35:01,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:01,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:01,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:35:01,608 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:01,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:01,608 INFO L85 PathProgramCache]: Analyzing trace with hash -103737533, now seen corresponding path program 1 times [2024-11-08 17:35:01,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:01,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076810508] [2024-11-08 17:35:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:01,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:01,701 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 17:35:01,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:01,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076810508] [2024-11-08 17:35:01,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076810508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:01,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:01,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:01,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516485654] [2024-11-08 17:35:01,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:01,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:01,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:01,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:01,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:01,704 INFO L87 Difference]: Start difference. First operand 1736 states and 2798 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:01,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:01,752 INFO L93 Difference]: Finished difference Result 1935 states and 3104 transitions. [2024-11-08 17:35:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:01,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 17:35:01,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:01,759 INFO L225 Difference]: With dead ends: 1935 [2024-11-08 17:35:01,759 INFO L226 Difference]: Without dead ends: 1833 [2024-11-08 17:35:01,760 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 17:35:01,761 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 1506 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1704 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 17:35:01,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2024-11-08 17:35:01,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1831. [2024-11-08 17:35:01,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1829 states have (on average 1.608529250956807) internal successors, (2942), 1830 states have internal predecessors, (2942), 0 states have call successors, (0), 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 17:35:01,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2942 transitions. [2024-11-08 17:35:01,806 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2942 transitions. Word has length 70 [2024-11-08 17:35:01,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:01,806 INFO L471 AbstractCegarLoop]: Abstraction has 1831 states and 2942 transitions. [2024-11-08 17:35:01,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2942 transitions. [2024-11-08 17:35:01,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:35:01,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:01,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:01,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:35:01,808 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:01,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:01,808 INFO L85 PathProgramCache]: Analyzing trace with hash 59177027, now seen corresponding path program 1 times [2024-11-08 17:35:01,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:01,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409907394] [2024-11-08 17:35:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:01,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:01,884 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 17:35:01,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:01,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409907394] [2024-11-08 17:35:01,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409907394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:01,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:01,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:01,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192828517] [2024-11-08 17:35:01,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:01,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:01,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:01,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:01,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:01,888 INFO L87 Difference]: Start difference. First operand 1831 states and 2942 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:01,935 INFO L93 Difference]: Finished difference Result 2361 states and 3754 transitions. [2024-11-08 17:35:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:01,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 17:35:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:01,944 INFO L225 Difference]: With dead ends: 2361 [2024-11-08 17:35:01,945 INFO L226 Difference]: Without dead ends: 2084 [2024-11-08 17:35:01,946 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 17:35:01,946 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 1504 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1710 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 17:35:01,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2024-11-08 17:35:01,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2082. [2024-11-08 17:35:01,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2080 states have (on average 1.5961538461538463) internal successors, (3320), 2081 states have internal predecessors, (3320), 0 states have call successors, (0), 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 17:35:02,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 3320 transitions. [2024-11-08 17:35:02,001 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 3320 transitions. Word has length 70 [2024-11-08 17:35:02,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:02,001 INFO L471 AbstractCegarLoop]: Abstraction has 2082 states and 3320 transitions. [2024-11-08 17:35:02,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 3320 transitions. [2024-11-08 17:35:02,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:35:02,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:02,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:02,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:35:02,003 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:02,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:02,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1561295427, now seen corresponding path program 1 times [2024-11-08 17:35:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:02,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803723526] [2024-11-08 17:35:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:02,098 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 17:35:02,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:02,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803723526] [2024-11-08 17:35:02,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803723526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:02,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:02,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:02,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926024765] [2024-11-08 17:35:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:02,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:02,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:02,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:02,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:02,104 INFO L87 Difference]: Start difference. First operand 2082 states and 3320 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:02,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:02,158 INFO L93 Difference]: Finished difference Result 3090 states and 4846 transitions. [2024-11-08 17:35:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:02,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 17:35:02,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:02,167 INFO L225 Difference]: With dead ends: 3090 [2024-11-08 17:35:02,167 INFO L226 Difference]: Without dead ends: 2562 [2024-11-08 17:35:02,169 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 17:35:02,170 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 1500 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1706 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 17:35:02,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1706 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:02,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2024-11-08 17:35:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2560. [2024-11-08 17:35:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 2558 states have (on average 1.5746677091477717) internal successors, (4028), 2559 states have internal predecessors, (4028), 0 states have call successors, (0), 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 17:35:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 4028 transitions. [2024-11-08 17:35:02,244 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 4028 transitions. Word has length 70 [2024-11-08 17:35:02,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:02,245 INFO L471 AbstractCegarLoop]: Abstraction has 2560 states and 4028 transitions. [2024-11-08 17:35:02,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 4028 transitions. [2024-11-08 17:35:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:35:02,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:02,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:02,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:35:02,246 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:02,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:02,247 INFO L85 PathProgramCache]: Analyzing trace with hash -654173373, now seen corresponding path program 1 times [2024-11-08 17:35:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:02,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305569678] [2024-11-08 17:35:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:02,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:02,337 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 17:35:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:02,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305569678] [2024-11-08 17:35:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305569678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:02,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:02,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:02,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641751010] [2024-11-08 17:35:02,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:02,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:02,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:02,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:02,343 INFO L87 Difference]: Start difference. First operand 2560 states and 4028 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:02,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:02,484 INFO L93 Difference]: Finished difference Result 4476 states and 6886 transitions. [2024-11-08 17:35:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:02,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 17:35:02,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:02,497 INFO L225 Difference]: With dead ends: 4476 [2024-11-08 17:35:02,498 INFO L226 Difference]: Without dead ends: 3470 [2024-11-08 17:35:02,500 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 17:35:02,501 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 1498 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1708 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 17:35:02,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2024-11-08 17:35:02,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3468. [2024-11-08 17:35:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3466 states have (on average 1.5429890363531449) internal successors, (5348), 3467 states have internal predecessors, (5348), 0 states have call successors, (0), 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 17:35:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 5348 transitions. [2024-11-08 17:35:02,637 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 5348 transitions. Word has length 70 [2024-11-08 17:35:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:02,638 INFO L471 AbstractCegarLoop]: Abstraction has 3468 states and 5348 transitions. [2024-11-08 17:35:02,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 5348 transitions. [2024-11-08 17:35:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:35:02,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:02,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:02,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:35:02,640 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:02,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:02,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1126759491, now seen corresponding path program 1 times [2024-11-08 17:35:02,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:02,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219219561] [2024-11-08 17:35:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:02,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:02,749 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 17:35:02,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:02,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219219561] [2024-11-08 17:35:02,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219219561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:02,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:02,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:02,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410274531] [2024-11-08 17:35:02,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:02,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:02,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:02,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:02,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:02,753 INFO L87 Difference]: Start difference. First operand 3468 states and 5348 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:02,897 INFO L93 Difference]: Finished difference Result 7104 states and 10678 transitions. [2024-11-08 17:35:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:02,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 17:35:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:02,917 INFO L225 Difference]: With dead ends: 7104 [2024-11-08 17:35:02,918 INFO L226 Difference]: Without dead ends: 5190 [2024-11-08 17:35:02,921 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 17:35:02,922 INFO L432 NwaCegarLoop]: 1611 mSDtfsCounter, 1496 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1710 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 17:35:02,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:02,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5190 states. [2024-11-08 17:35:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 5188. [2024-11-08 17:35:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5188 states, 5186 states have (on average 1.5032780563054378) internal successors, (7796), 5187 states have internal predecessors, (7796), 0 states have call successors, (0), 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 17:35:03,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 7796 transitions. [2024-11-08 17:35:03,144 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 7796 transitions. Word has length 70 [2024-11-08 17:35:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:03,144 INFO L471 AbstractCegarLoop]: Abstraction has 5188 states and 7796 transitions. [2024-11-08 17:35:03,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 7796 transitions. [2024-11-08 17:35:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:35:03,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:03,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:03,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:35:03,146 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:03,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash 323033411, now seen corresponding path program 1 times [2024-11-08 17:35:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:03,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930091010] [2024-11-08 17:35:03,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:03,256 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 17:35:03,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:03,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930091010] [2024-11-08 17:35:03,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930091010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:03,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:03,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:03,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387163815] [2024-11-08 17:35:03,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:03,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:03,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:03,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:03,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:03,259 INFO L87 Difference]: Start difference. First operand 5188 states and 7796 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:03,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:03,513 INFO L93 Difference]: Finished difference Result 12072 states and 17686 transitions. [2024-11-08 17:35:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:03,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 17:35:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:03,549 INFO L225 Difference]: With dead ends: 12072 [2024-11-08 17:35:03,549 INFO L226 Difference]: Without dead ends: 8438 [2024-11-08 17:35:03,555 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 17:35:03,556 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 1502 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1712 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 17:35:03,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1712 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2024-11-08 17:35:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 8436. [2024-11-08 17:35:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8436 states, 8434 states have (on average 1.4593312781598293) internal successors, (12308), 8435 states have internal predecessors, (12308), 0 states have call successors, (0), 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 17:35:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8436 states to 8436 states and 12308 transitions. [2024-11-08 17:35:03,867 INFO L78 Accepts]: Start accepts. Automaton has 8436 states and 12308 transitions. Word has length 70 [2024-11-08 17:35:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:03,867 INFO L471 AbstractCegarLoop]: Abstraction has 8436 states and 12308 transitions. [2024-11-08 17:35:03,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 8436 states and 12308 transitions. [2024-11-08 17:35:03,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:03,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:03,870 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:03,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:35:03,871 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:03,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:03,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2097607873, now seen corresponding path program 1 times [2024-11-08 17:35:03,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:03,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171140711] [2024-11-08 17:35:03,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:03,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:35:04,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:04,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171140711] [2024-11-08 17:35:04,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171140711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:04,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:04,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:04,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162634231] [2024-11-08 17:35:04,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:04,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:04,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:04,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:04,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:04,189 INFO L87 Difference]: Start difference. First operand 8436 states and 12308 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 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 17:35:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:05,298 INFO L93 Difference]: Finished difference Result 49154 states and 70203 transitions. [2024-11-08 17:35:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:05,299 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 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 92 [2024-11-08 17:35:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:05,398 INFO L225 Difference]: With dead ends: 49154 [2024-11-08 17:35:05,398 INFO L226 Difference]: Without dead ends: 44288 [2024-11-08 17:35:05,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:35:05,417 INFO L432 NwaCegarLoop]: 1638 mSDtfsCounter, 8090 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8090 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:05,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8090 Valid, 4016 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:05,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44288 states. [2024-11-08 17:35:06,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44288 to 14324. [2024-11-08 17:35:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14324 states, 14322 states have (on average 1.4380673090350509) internal successors, (20596), 14323 states have internal predecessors, (20596), 0 states have call successors, (0), 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 17:35:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14324 states to 14324 states and 20596 transitions. [2024-11-08 17:35:06,272 INFO L78 Accepts]: Start accepts. Automaton has 14324 states and 20596 transitions. Word has length 92 [2024-11-08 17:35:06,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:06,273 INFO L471 AbstractCegarLoop]: Abstraction has 14324 states and 20596 transitions. [2024-11-08 17:35:06,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 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 17:35:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14324 states and 20596 transitions. [2024-11-08 17:35:06,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:06,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:06,278 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:06,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:35:06,278 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:06,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1934693313, now seen corresponding path program 1 times [2024-11-08 17:35:06,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:06,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300214498] [2024-11-08 17:35:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:06,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 17:35:06,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:06,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300214498] [2024-11-08 17:35:06,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300214498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:06,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:06,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:06,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192553666] [2024-11-08 17:35:06,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:06,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:06,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:06,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:06,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:06,558 INFO L87 Difference]: Start difference. First operand 14324 states and 20596 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 17:35:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:08,041 INFO L93 Difference]: Finished difference Result 56034 states and 79931 transitions. [2024-11-08 17:35:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:08,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 17:35:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:08,163 INFO L225 Difference]: With dead ends: 56034 [2024-11-08 17:35:08,163 INFO L226 Difference]: Without dead ends: 49152 [2024-11-08 17:35:08,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:35:08,197 INFO L432 NwaCegarLoop]: 1637 mSDtfsCounter, 8092 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8092 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:08,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8092 Valid, 3975 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49152 states. [2024-11-08 17:35:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49152 to 23636. [2024-11-08 17:35:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23636 states, 23634 states have (on average 1.4252348311754253) internal successors, (33684), 23635 states have internal predecessors, (33684), 0 states have call successors, (0), 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 17:35:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23636 states to 23636 states and 33684 transitions. [2024-11-08 17:35:09,641 INFO L78 Accepts]: Start accepts. Automaton has 23636 states and 33684 transitions. Word has length 92 [2024-11-08 17:35:09,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:09,642 INFO L471 AbstractCegarLoop]: Abstraction has 23636 states and 33684 transitions. [2024-11-08 17:35:09,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 17:35:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 23636 states and 33684 transitions. [2024-11-08 17:35:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:09,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:09,649 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:09,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:35:09,650 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:09,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash -432574913, now seen corresponding path program 1 times [2024-11-08 17:35:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:09,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800860625] [2024-11-08 17:35:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:09,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 17:35:09,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:09,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800860625] [2024-11-08 17:35:09,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800860625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:09,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:09,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987294487] [2024-11-08 17:35:09,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:09,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:09,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:09,990 INFO L87 Difference]: Start difference. First operand 23636 states and 33684 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:35:11,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:11,457 INFO L93 Difference]: Finished difference Result 62914 states and 89627 transitions. [2024-11-08 17:35:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:11,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:35:11,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:11,573 INFO L225 Difference]: With dead ends: 62914 [2024-11-08 17:35:11,573 INFO L226 Difference]: Without dead ends: 56032 [2024-11-08 17:35:11,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:35:11,595 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 8136 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8136 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:11,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8136 Valid, 3991 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56032 states. [2024-11-08 17:35:12,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56032 to 30516. [2024-11-08 17:35:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30516 states, 30514 states have (on average 1.421642524742741) internal successors, (43380), 30515 states have internal predecessors, (43380), 0 states have call successors, (0), 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 17:35:13,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30516 states to 30516 states and 43380 transitions. [2024-11-08 17:35:13,071 INFO L78 Accepts]: Start accepts. Automaton has 30516 states and 43380 transitions. Word has length 92 [2024-11-08 17:35:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:13,072 INFO L471 AbstractCegarLoop]: Abstraction has 30516 states and 43380 transitions. [2024-11-08 17:35:13,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:35:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 30516 states and 43380 transitions. [2024-11-08 17:35:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:13,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:13,076 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:13,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:35:13,077 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:13,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:13,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1646923583, now seen corresponding path program 1 times [2024-11-08 17:35:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:13,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098418202] [2024-11-08 17:35:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 17:35:13,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098418202] [2024-11-08 17:35:13,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098418202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:13,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:13,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:13,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833031000] [2024-11-08 17:35:13,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:13,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:13,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:13,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:13,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:13,315 INFO L87 Difference]: Start difference. First operand 30516 states and 43380 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 17:35:15,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:15,065 INFO L93 Difference]: Finished difference Result 69794 states and 99323 transitions. [2024-11-08 17:35:15,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:15,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 17:35:15,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:15,174 INFO L225 Difference]: With dead ends: 69794 [2024-11-08 17:35:15,174 INFO L226 Difference]: Without dead ends: 62912 [2024-11-08 17:35:15,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:35:15,194 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8192 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8192 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:15,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8192 Valid, 3956 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:15,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62912 states. [2024-11-08 17:35:16,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62912 to 37396. [2024-11-08 17:35:16,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37396 states, 37394 states have (on average 1.41937209177943) internal successors, (53076), 37395 states have internal predecessors, (53076), 0 states have call successors, (0), 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 17:35:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37396 states to 37396 states and 53076 transitions. [2024-11-08 17:35:16,548 INFO L78 Accepts]: Start accepts. Automaton has 37396 states and 53076 transitions. Word has length 92 [2024-11-08 17:35:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:16,550 INFO L471 AbstractCegarLoop]: Abstraction has 37396 states and 53076 transitions. [2024-11-08 17:35:16,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 17:35:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 37396 states and 53076 transitions. [2024-11-08 17:35:16,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:16,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:16,559 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:16,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:35:16,562 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:16,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash -867110849, now seen corresponding path program 1 times [2024-11-08 17:35:16,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:16,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272547632] [2024-11-08 17:35:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:16,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 17:35:16,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:16,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272547632] [2024-11-08 17:35:16,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272547632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:16,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:16,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:16,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731183177] [2024-11-08 17:35:16,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:16,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:16,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:16,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:16,817 INFO L87 Difference]: Start difference. First operand 37396 states and 53076 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 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 17:35:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:18,741 INFO L93 Difference]: Finished difference Result 76674 states and 109019 transitions. [2024-11-08 17:35:18,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:18,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 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 17:35:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:18,843 INFO L225 Difference]: With dead ends: 76674 [2024-11-08 17:35:18,843 INFO L226 Difference]: Without dead ends: 69792 [2024-11-08 17:35:18,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:35:18,860 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8100 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8100 SdHoareTripleChecker+Valid, 4034 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:18,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8100 Valid, 4034 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:18,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69792 states. [2024-11-08 17:35:20,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69792 to 44276. [2024-11-08 17:35:20,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44276 states, 44274 states have (on average 1.4178072909608348) internal successors, (62772), 44275 states have internal predecessors, (62772), 0 states have call successors, (0), 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 17:35:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44276 states to 44276 states and 62772 transitions. [2024-11-08 17:35:20,419 INFO L78 Accepts]: Start accepts. Automaton has 44276 states and 62772 transitions. Word has length 92 [2024-11-08 17:35:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:20,420 INFO L471 AbstractCegarLoop]: Abstraction has 44276 states and 62772 transitions. [2024-11-08 17:35:20,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 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 17:35:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 44276 states and 62772 transitions. [2024-11-08 17:35:20,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:20,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:20,426 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:20,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:35:20,426 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:20,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:20,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1670836929, now seen corresponding path program 1 times [2024-11-08 17:35:20,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:20,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434449828] [2024-11-08 17:35:20,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:20,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 17:35:20,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:20,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434449828] [2024-11-08 17:35:20,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434449828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:20,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:20,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:20,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260972885] [2024-11-08 17:35:20,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:20,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:20,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:20,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:20,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:20,666 INFO L87 Difference]: Start difference. First operand 44276 states and 62772 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:22,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:22,858 INFO L93 Difference]: Finished difference Result 83554 states and 118715 transitions. [2024-11-08 17:35:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:22,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-08 17:35:22,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:22,947 INFO L225 Difference]: With dead ends: 83554 [2024-11-08 17:35:22,947 INFO L226 Difference]: Without dead ends: 76672 [2024-11-08 17:35:22,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:35:22,964 INFO L432 NwaCegarLoop]: 1632 mSDtfsCounter, 8039 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8039 SdHoareTripleChecker+Valid, 4155 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:22,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8039 Valid, 4155 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:23,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76672 states. [2024-11-08 17:35:24,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76672 to 51156. [2024-11-08 17:35:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51156 states, 51154 states have (on average 1.416663408531102) internal successors, (72468), 51155 states have internal predecessors, (72468), 0 states have call successors, (0), 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 17:35:24,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51156 states to 51156 states and 72468 transitions. [2024-11-08 17:35:24,863 INFO L78 Accepts]: Start accepts. Automaton has 51156 states and 72468 transitions. Word has length 92 [2024-11-08 17:35:24,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:24,864 INFO L471 AbstractCegarLoop]: Abstraction has 51156 states and 72468 transitions. [2024-11-08 17:35:24,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:24,865 INFO L276 IsEmpty]: Start isEmpty. Operand 51156 states and 72468 transitions. [2024-11-08 17:35:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:35:24,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:24,873 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:24,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:35:24,873 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:24,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1937944795, now seen corresponding path program 1 times [2024-11-08 17:35:24,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:24,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160568339] [2024-11-08 17:35:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:24,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:25,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:25,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160568339] [2024-11-08 17:35:25,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160568339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:25,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:25,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:25,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51114663] [2024-11-08 17:35:25,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:25,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:25,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:25,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:25,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:25,063 INFO L87 Difference]: Start difference. First operand 51156 states and 72468 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 17:35:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:26,743 INFO L93 Difference]: Finished difference Result 100760 states and 142422 transitions. [2024-11-08 17:35:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:26,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 17:35:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:26,791 INFO L225 Difference]: With dead ends: 100760 [2024-11-08 17:35:26,792 INFO L226 Difference]: Without dead ends: 51158 [2024-11-08 17:35:26,815 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 17:35:26,815 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:26,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3157 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:26,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51158 states. [2024-11-08 17:35:28,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51158 to 51156. [2024-11-08 17:35:28,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51156 states, 51154 states have (on average 1.4032138249208272) internal successors, (71780), 51155 states have internal predecessors, (71780), 0 states have call successors, (0), 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 17:35:28,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51156 states to 51156 states and 71780 transitions. [2024-11-08 17:35:28,483 INFO L78 Accepts]: Start accepts. Automaton has 51156 states and 71780 transitions. Word has length 93 [2024-11-08 17:35:28,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:28,483 INFO L471 AbstractCegarLoop]: Abstraction has 51156 states and 71780 transitions. [2024-11-08 17:35:28,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 17:35:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 51156 states and 71780 transitions. [2024-11-08 17:35:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:28,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:28,489 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:28,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:35:28,489 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:28,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:28,490 INFO L85 PathProgramCache]: Analyzing trace with hash -868635337, now seen corresponding path program 1 times [2024-11-08 17:35:28,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:28,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524219946] [2024-11-08 17:35:28,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:28,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:28,685 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:28,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:28,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524219946] [2024-11-08 17:35:28,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524219946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:28,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:28,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:28,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299970497] [2024-11-08 17:35:28,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:28,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:28,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:28,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:28,689 INFO L87 Difference]: Start difference. First operand 51156 states and 71780 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 17:35:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:29,589 INFO L93 Difference]: Finished difference Result 69422 states and 97485 transitions. [2024-11-08 17:35:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:29,589 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 17:35:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:29,608 INFO L225 Difference]: With dead ends: 69422 [2024-11-08 17:35:29,608 INFO L226 Difference]: Without dead ends: 19820 [2024-11-08 17:35:29,628 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 17:35:29,629 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 47 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:29,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:29,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19820 states. [2024-11-08 17:35:30,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19820 to 19811. [2024-11-08 17:35:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19811 states, 19809 states have (on average 1.4120349336160332) internal successors, (27971), 19810 states have internal predecessors, (27971), 0 states have call successors, (0), 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 17:35:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19811 states to 19811 states and 27971 transitions. [2024-11-08 17:35:30,262 INFO L78 Accepts]: Start accepts. Automaton has 19811 states and 27971 transitions. Word has length 94 [2024-11-08 17:35:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:30,262 INFO L471 AbstractCegarLoop]: Abstraction has 19811 states and 27971 transitions. [2024-11-08 17:35:30,263 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 17:35:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 19811 states and 27971 transitions. [2024-11-08 17:35:30,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 17:35:30,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:30,266 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:30,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:35:30,266 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:30,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash -752986803, now seen corresponding path program 1 times [2024-11-08 17:35:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:30,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377121456] [2024-11-08 17:35:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:30,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:30,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:30,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377121456] [2024-11-08 17:35:30,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377121456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:30,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:30,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:30,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801227059] [2024-11-08 17:35:30,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:30,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:30,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:30,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:30,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:30,390 INFO L87 Difference]: Start difference. First operand 19811 states and 27971 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:30,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:30,715 INFO L93 Difference]: Finished difference Result 28935 states and 40693 transitions. [2024-11-08 17:35:30,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:30,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 17:35:30,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:30,730 INFO L225 Difference]: With dead ends: 28935 [2024-11-08 17:35:30,730 INFO L226 Difference]: Without dead ends: 10693 [2024-11-08 17:35:30,740 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 17:35:30,741 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 49 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:30,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2024-11-08 17:35:31,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 10691. [2024-11-08 17:35:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10691 states, 10689 states have (on average 1.4155674057442231) internal successors, (15131), 10690 states have internal predecessors, (15131), 0 states have call successors, (0), 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 17:35:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10691 states to 10691 states and 15131 transitions. [2024-11-08 17:35:31,223 INFO L78 Accepts]: Start accepts. Automaton has 10691 states and 15131 transitions. Word has length 95 [2024-11-08 17:35:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:31,223 INFO L471 AbstractCegarLoop]: Abstraction has 10691 states and 15131 transitions. [2024-11-08 17:35:31,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 10691 states and 15131 transitions. [2024-11-08 17:35:31,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 17:35:31,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:31,226 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-08 17:35:31,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 17:35:31,226 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:31,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash -457890605, now seen corresponding path program 1 times [2024-11-08 17:35:31,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:31,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848630029] [2024-11-08 17:35:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:31,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:31,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:31,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848630029] [2024-11-08 17:35:31,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848630029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:35:31,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29758942] [2024-11-08 17:35:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:31,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:35:31,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:35:31,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:35:31,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:35:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:31,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:35:31,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:35:31,658 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:31,658 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:35:31,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29758942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:31,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:35:31,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 17:35:31,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022990304] [2024-11-08 17:35:31,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:31,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:31,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:31,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:31,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:35:31,661 INFO L87 Difference]: Start difference. First operand 10691 states and 15131 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:35,742 INFO L93 Difference]: Finished difference Result 13697 states and 20058 transitions. [2024-11-08 17:35:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:35,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 17:35:35,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:35,755 INFO L225 Difference]: With dead ends: 13697 [2024-11-08 17:35:35,755 INFO L226 Difference]: Without dead ends: 12193 [2024-11-08 17:35:35,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:35:35,759 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 901 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 2914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:35,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 599 Invalid, 2914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [717 Valid, 2197 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-08 17:35:35,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12193 states. [2024-11-08 17:35:36,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12193 to 12193. [2024-11-08 17:35:36,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12193 states, 12191 states have (on average 1.3904519727667952) internal successors, (16951), 12192 states have internal predecessors, (16951), 0 states have call successors, (0), 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 17:35:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12193 states to 12193 states and 16951 transitions. [2024-11-08 17:35:36,129 INFO L78 Accepts]: Start accepts. Automaton has 12193 states and 16951 transitions. Word has length 95 [2024-11-08 17:35:36,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:36,129 INFO L471 AbstractCegarLoop]: Abstraction has 12193 states and 16951 transitions. [2024-11-08 17:35:36,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 12193 states and 16951 transitions. [2024-11-08 17:35:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 17:35:36,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:36,133 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:36,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:35:36,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-08 17:35:36,334 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:36,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:36,335 INFO L85 PathProgramCache]: Analyzing trace with hash -793321409, now seen corresponding path program 1 times [2024-11-08 17:35:36,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:36,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596936744] [2024-11-08 17:35:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:36,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:36,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:36,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596936744] [2024-11-08 17:35:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596936744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:36,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:36,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:36,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186831772] [2024-11-08 17:35:36,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:36,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:36,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:36,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:36,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:36,516 INFO L87 Difference]: Start difference. First operand 12193 states and 16951 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 17:35:36,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:36,786 INFO L93 Difference]: Finished difference Result 16757 states and 23253 transitions. [2024-11-08 17:35:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:36,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-08 17:35:36,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:36,798 INFO L225 Difference]: With dead ends: 16757 [2024-11-08 17:35:36,799 INFO L226 Difference]: Without dead ends: 7635 [2024-11-08 17:35:36,805 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 17:35:36,806 INFO L432 NwaCegarLoop]: 1591 mSDtfsCounter, 46 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:36,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:36,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2024-11-08 17:35:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 7633. [2024-11-08 17:35:37,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7633 states, 7631 states have (on average 1.3878914952168786) internal successors, (10591), 7632 states have internal predecessors, (10591), 0 states have call successors, (0), 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 17:35:37,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7633 states to 7633 states and 10591 transitions. [2024-11-08 17:35:37,197 INFO L78 Accepts]: Start accepts. Automaton has 7633 states and 10591 transitions. Word has length 97 [2024-11-08 17:35:37,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:37,197 INFO L471 AbstractCegarLoop]: Abstraction has 7633 states and 10591 transitions. [2024-11-08 17:35:37,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 17:35:37,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7633 states and 10591 transitions. [2024-11-08 17:35:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 17:35:37,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:37,199 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:37,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 17:35:37,199 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:37,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1316975025, now seen corresponding path program 1 times [2024-11-08 17:35:37,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:37,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332089053] [2024-11-08 17:35:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:37,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:37,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:37,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332089053] [2024-11-08 17:35:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332089053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:37,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:37,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957415418] [2024-11-08 17:35:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:37,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:37,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:37,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:37,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:37,323 INFO L87 Difference]: Start difference. First operand 7633 states and 10591 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:37,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:37,422 INFO L93 Difference]: Finished difference Result 9917 states and 13713 transitions. [2024-11-08 17:35:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:37,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 17:35:37,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:37,429 INFO L225 Difference]: With dead ends: 9917 [2024-11-08 17:35:37,430 INFO L226 Difference]: Without dead ends: 5355 [2024-11-08 17:35:37,433 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 17:35:37,434 INFO L432 NwaCegarLoop]: 1584 mSDtfsCounter, 43 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:37,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:37,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5355 states. [2024-11-08 17:35:37,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5355 to 5353. [2024-11-08 17:35:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5351 states have (on average 1.390581199775743) internal successors, (7441), 5352 states have internal predecessors, (7441), 0 states have call successors, (0), 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 17:35:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 7441 transitions. [2024-11-08 17:35:37,558 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 7441 transitions. Word has length 99 [2024-11-08 17:35:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:37,558 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 7441 transitions. [2024-11-08 17:35:37,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 7441 transitions. [2024-11-08 17:35:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 17:35:37,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:37,560 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-08 17:35:37,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 17:35:37,560 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:37,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash 861938525, now seen corresponding path program 1 times [2024-11-08 17:35:37,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:37,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860533353] [2024-11-08 17:35:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:37,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:37,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:37,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860533353] [2024-11-08 17:35:37,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860533353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:37,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:37,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:35:37,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855102230] [2024-11-08 17:35:37,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:37,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:37,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:37,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:37,651 INFO L87 Difference]: Start difference. First operand 5353 states and 7441 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:41,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:41,271 INFO L93 Difference]: Finished difference Result 11363 states and 16008 transitions. [2024-11-08 17:35:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:41,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 17:35:41,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:41,281 INFO L225 Difference]: With dead ends: 11363 [2024-11-08 17:35:41,281 INFO L226 Difference]: Without dead ends: 8357 [2024-11-08 17:35:41,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:35:41,284 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 897 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:41,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 572 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 17:35:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8357 states. [2024-11-08 17:35:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8357 to 8357. [2024-11-08 17:35:41,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8357 states, 8355 states have (on average 1.3091561938958707) internal successors, (10938), 8356 states have internal predecessors, (10938), 0 states have call successors, (0), 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 17:35:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8357 states to 8357 states and 10938 transitions. [2024-11-08 17:35:41,433 INFO L78 Accepts]: Start accepts. Automaton has 8357 states and 10938 transitions. Word has length 99 [2024-11-08 17:35:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:41,434 INFO L471 AbstractCegarLoop]: Abstraction has 8357 states and 10938 transitions. [2024-11-08 17:35:41,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 8357 states and 10938 transitions. [2024-11-08 17:35:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 17:35:41,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:41,435 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:41,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 17:35:41,436 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:41,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:41,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1142106531, now seen corresponding path program 1 times [2024-11-08 17:35:41,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:41,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4658386] [2024-11-08 17:35:41,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:41,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:41,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:41,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4658386] [2024-11-08 17:35:41,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4658386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:41,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:41,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:41,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551314199] [2024-11-08 17:35:41,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:41,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:41,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:41,566 INFO L87 Difference]: Start difference. First operand 8357 states and 10938 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:41,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:41,648 INFO L93 Difference]: Finished difference Result 9501 states and 12485 transitions. [2024-11-08 17:35:41,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:41,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-08 17:35:41,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:41,658 INFO L225 Difference]: With dead ends: 9501 [2024-11-08 17:35:41,658 INFO L226 Difference]: Without dead ends: 7219 [2024-11-08 17:35:41,661 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 17:35:41,661 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 40 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:41,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:41,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7219 states. [2024-11-08 17:35:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7219 to 7217. [2024-11-08 17:35:41,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7217 states, 7215 states have (on average 1.2997920997920998) internal successors, (9378), 7216 states have internal predecessors, (9378), 0 states have call successors, (0), 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 17:35:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7217 states to 7217 states and 9378 transitions. [2024-11-08 17:35:41,784 INFO L78 Accepts]: Start accepts. Automaton has 7217 states and 9378 transitions. Word has length 101 [2024-11-08 17:35:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:41,785 INFO L471 AbstractCegarLoop]: Abstraction has 7217 states and 9378 transitions. [2024-11-08 17:35:41,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 7217 states and 9378 transitions. [2024-11-08 17:35:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 17:35:41,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:41,786 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:41,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 17:35:41,787 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:41,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:41,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1334499307, now seen corresponding path program 1 times [2024-11-08 17:35:41,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:41,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689694922] [2024-11-08 17:35:41,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:41,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:35:41,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:41,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689694922] [2024-11-08 17:35:41,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689694922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:35:41,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509797657] [2024-11-08 17:35:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:41,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:35:42,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:35:42,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:35:42,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:35:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:42,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 17:35:42,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:35:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:35:42,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:35:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:35:43,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509797657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:35:43,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:35:43,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 10 [2024-11-08 17:35:43,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333782588] [2024-11-08 17:35:43,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:35:43,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:43,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:43,042 INFO L87 Difference]: Start difference. First operand 7217 states and 9378 transitions. Second operand has 10 states, 10 states have (on average 28.5) internal successors, (285), 10 states have internal predecessors, (285), 0 states have call successors, (0), 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 17:35:43,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:43,406 INFO L93 Difference]: Finished difference Result 10971 states and 14340 transitions. [2024-11-08 17:35:43,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:35:43,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 28.5) internal successors, (285), 10 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-08 17:35:43,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:43,418 INFO L225 Difference]: With dead ends: 10971 [2024-11-08 17:35:43,419 INFO L226 Difference]: Without dead ends: 9829 [2024-11-08 17:35:43,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:35:43,422 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 4549 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 6413 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:43,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4549 Valid, 6413 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:43,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2024-11-08 17:35:43,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 9721. [2024-11-08 17:35:43,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9721 states, 9719 states have (on average 1.292931371540282) internal successors, (12566), 9720 states have internal predecessors, (12566), 0 states have call successors, (0), 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 17:35:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9721 states to 9721 states and 12566 transitions. [2024-11-08 17:35:43,679 INFO L78 Accepts]: Start accepts. Automaton has 9721 states and 12566 transitions. Word has length 103 [2024-11-08 17:35:43,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:43,679 INFO L471 AbstractCegarLoop]: Abstraction has 9721 states and 12566 transitions. [2024-11-08 17:35:43,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 28.5) internal successors, (285), 10 states have internal predecessors, (285), 0 states have call successors, (0), 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 17:35:43,680 INFO L276 IsEmpty]: Start isEmpty. Operand 9721 states and 12566 transitions. [2024-11-08 17:35:43,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:35:43,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:43,681 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-08 17:35:43,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:35:43,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-08 17:35:43,886 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:43,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:43,886 INFO L85 PathProgramCache]: Analyzing trace with hash 810887087, now seen corresponding path program 1 times [2024-11-08 17:35:43,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:43,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846164535] [2024-11-08 17:35:43,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:43,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:45,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:45,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846164535] [2024-11-08 17:35:45,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846164535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:35:45,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886277261] [2024-11-08 17:35:45,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:45,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:35:45,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:35:45,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:35:45,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:35:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:45,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 17:35:45,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:35:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:47,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:35:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:48,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886277261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:35:48,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:35:48,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-11-08 17:35:48,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711369768] [2024-11-08 17:35:48,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:35:48,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 17:35:48,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 17:35:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-08 17:35:48,383 INFO L87 Difference]: Start difference. First operand 9721 states and 12566 transitions. Second operand has 31 states, 31 states have (on average 8.64516129032258) internal successors, (268), 31 states have internal predecessors, (268), 0 states have call successors, (0), 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 17:35:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:53,835 INFO L93 Difference]: Finished difference Result 23315 states and 30184 transitions. [2024-11-08 17:35:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-08 17:35:53,836 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 8.64516129032258) internal successors, (268), 31 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 17:35:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:53,854 INFO L225 Difference]: With dead ends: 23315 [2024-11-08 17:35:53,854 INFO L226 Difference]: Without dead ends: 19901 [2024-11-08 17:35:53,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1299 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=981, Invalid=4421, Unknown=0, NotChecked=0, Total=5402 [2024-11-08 17:35:53,860 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 18237 mSDsluCounter, 12887 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18237 SdHoareTripleChecker+Valid, 14445 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:53,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18237 Valid, 14445 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 17:35:53,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19901 states. [2024-11-08 17:35:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19901 to 19701. [2024-11-08 17:35:54,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19701 states, 19699 states have (on average 1.2854459617239453) internal successors, (25322), 19700 states have internal predecessors, (25322), 0 states have call successors, (0), 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 17:35:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19701 states to 19701 states and 25322 transitions. [2024-11-08 17:35:54,467 INFO L78 Accepts]: Start accepts. Automaton has 19701 states and 25322 transitions. Word has length 104 [2024-11-08 17:35:54,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:54,467 INFO L471 AbstractCegarLoop]: Abstraction has 19701 states and 25322 transitions. [2024-11-08 17:35:54,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.64516129032258) internal successors, (268), 31 states have internal predecessors, (268), 0 states have call successors, (0), 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 17:35:54,468 INFO L276 IsEmpty]: Start isEmpty. Operand 19701 states and 25322 transitions. [2024-11-08 17:35:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:35:54,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:54,470 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-08 17:35:54,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:35:54,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-08 17:35:54,671 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:54,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:54,672 INFO L85 PathProgramCache]: Analyzing trace with hash -404663121, now seen corresponding path program 1 times [2024-11-08 17:35:54,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:54,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338068602] [2024-11-08 17:35:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:54,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:55,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:55,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338068602] [2024-11-08 17:35:55,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338068602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:35:55,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453360152] [2024-11-08 17:35:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:55,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:35:55,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:35:55,950 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:35:55,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8414e0-ac25-4620-850f-b0f73c1770f5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:35:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:56,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:35:56,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:35:56,794 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:56,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:35:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:58,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453360152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:35:58,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:35:58,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-08 17:35:58,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706624864] [2024-11-08 17:35:58,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:35:58,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 17:35:58,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 17:35:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2024-11-08 17:35:58,329 INFO L87 Difference]: Start difference. First operand 19701 states and 25322 transitions. Second operand has 29 states, 29 states have (on average 9.10344827586207) internal successors, (264), 28 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)